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PLOS Neglected Tropical Diseases logoLink to PLOS Neglected Tropical Diseases
. 2023 Jun 30;17(6):e0011433. doi: 10.1371/journal.pntd.0011433

Trachoma prevention practice and associated factors among mothers having children aged under nine years in Andabet district, northwest Ethiopia, 2022: A multi-level analysis

Zufan Alamrie Asmare 1,*, Natnael Lakachew Assefa 2, Dagmawi Abebe 3, Solomon Gedlu Nigatu 4, Yezinash Addis Alimaw 2
Editor: Joseph M Vinetz5
PMCID: PMC10313038  PMID: 37390045

Abstract

Background

The world health organization (WHO) adopted the Surgery, Antibiotic, facial cleanliness, and environmental improvement (SAFE) strategy for the prevention of trachoma, and different prevention strategies have been employed in Andabet district. Trachoma still has a high prevalence despite these efforts. So, it is imperative to assess ground trachoma prevention practice (TPP) since there are insufficient studies in the study area.

Objective

To determine the magnitude and factors associated with TPP among mothers having children aged under nine years in Andabet district, Northwest Ethiopia.

Method

A community-based cross-sectional study involving 624 participants was conducted June 1–30, 2022. Systematic random sampling was carried out to select study participants. Multi-level binary logistic regression analysis was used to identify factors associated with poor TPP. Descriptive and summary statistics were performed and variables with p-value < 0.05 in the best-fitted model were declared to be significantly associated with poor TPP.

Results

In this study, the proportion of poor TPP was found to be 50.16% (95%CI = 46.23, 54.08). In the multi-variable multi-level logistic regression; having no formal education (AOR = 2.95; 95%CI: 1.41,6.15) and primary education (AOR = 2.33; 95%CI:1.04, 5.24), being a farmer (AOR = 3.02; 95%CI:1.73,5.28), and merchant (AOR = 2.63; 95%CI:1.20, 5.75), time taken to water point >30 minutes (AOR = 4.60,95CI:1.30,16.26) and didn’t receive health education about trachoma (AOR = 2.36;95CI:1.16,4.79) were significantly associated with poor TPP.

Conclusion

The proportion of poor TPP was high relative to other studies. Level of education, occupation, time taken to the water point, and health education were significantly associated with poor TPP. Therefore, taking special attention to these high-risk groups could decrease the poor TPP.

Author summary

Trachoma prevention and control strategies have been successful in certain societies, but it has been more difficult in many communities. In Ethiopia, there are 10.2 million cases of trachoma, in which the Amhara region takes the lion’s share. Half the global population requiring intervention for trachoma elimination is in the country where some regions/districts have up to 37%TF rate after years of antibiotic treatment. Facial cleanliness & Environmental improvements are critical for sustained progress toward elimination. This study demonstrates the need to consider support for the introduction of those interventions (F and E) for trachoma elimination in Ethiopia and thus the elimination of an estimated half the global burden. The findings can be used to establish effective public health approaches and implementation of those strategies (F and E) for trachoma prevention and control.

Introduction

Trachoma is caused by Chlamydia trachomatis, a neglected tropical disease [1]. It has been one of the most debilitating diseases affecting 60 to 90% of children, especially those under nine years [2,3]. As a devastating disease, Trachoma hinders the performance of children in school and impairs their ability to lead a healthy and productive life [2]. Moreover, these ruinous diseases can result in vision loss, stigma, reduced productivity, and economic loss of US$ 2.9–5.3 billion annually, and half of the global burden of trachoma is shared by Ethiopia solely [4,5].

Globally, trachoma causes 1.9 million visual impairments and 1.2 million blindness. It is still endemic in 44 countries [6,7]. More than 80% of active trachoma is concentrated in Africa, nearly half is in sub-Saharan Africa [4]. In Ethiopia, there are 10.2 million cases of trachoma, in which the Amhara region takes the lion’s share (62.6%) [4,8].

To control the disease, WHO implemented SAFE (surgery for advanced disease, Antibiotics, facial cleanliness, and Environmental improvement) [912]. As a result of the implementation, trachoma prevalence has drastically decreased [4,9]. As of 5 October 2022, fifteen countries have been validated as having eliminated the disease as a public health problem [13]. Aside from S (surgery) and A (antibiotics), Proper practice of F (facial cleanliness) and E (Environmental improvement) is responsible for 58.7% and 37.4% reduction of trachoma prevalence at all ages and in children respectively [14]. Therefore, changes in hygiene behavior and improvements in environmental infrastructure are ideal long-term strategies for trachoma control [15].

Despite these, in our study area Andabet, Northwest Ethiopia, After 8 to 11 years of implementation of SAFE, the prevalence of TF (trachomatous follicular) was 37% in 2017, and it remained hyperendemic [8,16].

According to different studies conducted in Ethiopia, the prevalence of poor TPP was high, which ranges between 45.5 and 64.4% [1,17]. Shreds of evidence have shown that individual-level factors such as the age of the mother, husband’s education, basic knowledge about trachoma, mother’s attitude towards trachoma, taking health education about trachoma, time taken to the water point and frequency of getting water and also community-level factors such as residence and types of water source were affected TPP [1,7,1621].

Although numerous studies were done on TPP, most of them did not consider the community-level factors that could affect TPP. Therefore, we aimed to determine the magnitude and associated factors of TPP. Identifying various factors at both individual and community levels can have a key role in implementing policies and programs aimed at minimizing poor TPP.

Methods

Ethics statement

The study adhered to the tenets of the Declaration of Helsinki and approval was sought and obtained from the Ethical Review Board of the College of Medicine and Health Sciences, University of Gondar (Reference Number: 1556/2022). A permission letter was obtained from Andabet district administrative office and written informed consent was obtained from all voluntary participants. The participants were informed that the study would not impose harm on them. There were no personal identifiers and the confidentiality of the study participants was maintained at all stages of data processing. Informed verbal consent was obtained from each respondent and confidentiality was kept by using codes and avoiding personal identifiers.

Study area and period

This study was conducted in the Andabet district, south Gondar zone, Amhara region, Ethiopia June 1–30, 2022. The district is located 717 km from Addis Ababa and 150km east of Bahirdar, the capital city of the Amhara region. Its total population is 152,683 and according to 2022 data from the Andabet district administration office; the district has 26 kebeles with 34765 households. It has 1 primary health care center and 2 health posts. Its climate condition is Woinadega

Study design

A community-based cross-sectional design was used with a systematic random sampling method June 1–30, 2022.

Source and study population

The source and study population of the study were Mothers having children aged under nine years who had been living in the Andabet district, Northwest Ethiopia. Mothers who had at least one child of age less than nine years and those who lived in the district at least for six months were included in the study. On the contrary, mothers with mental illness, other serious systemic illnesses, and hearing problems were excluded from the study.

Sample size determination

The sample size was calculated using a single population proportion formula for the proportion of poor TPP. By taking a similar study done in Oromia, Ethiopia with a proportion of 48.5% [1], 95% confidence level, 5% margin of error, 1.5 design effect, and 10% non-response rate, the final sample size for this study was determined to be 634.

Sampling technique and procedure

A multistage sampling technique was used during the sampling process. Six Kebeles out of 26 Kebeles were selected by using a simple random sampling method after a list of kebeles was obtained from the Andabet district administration bureau. The total sample size of the study was allocated proportionally for each Kebele based on the number of mothers having children aged under nine years that were found in each Kebele. Finally, the households were chosen using a systematic random sample technique.

To carry out systematic random sampling, sampling frames were collected from each kebele. The total estimated number of the study population was 4565. Based on the study population and sample size required from each kebele, we calculated the interval between households and found it to be seven. Then the first household was randomly selected from 1 to 7 serial numbers of sampling and the remaining households were selected at every 7th interval. If mothers in the household did not fulfill the inclusion criteria and/or were not found with two repeated visits, the next household was taken (Fig 1).

Fig 1. Schematic presentation of sampling technique of trachoma prevention practice among mothers having children aged under nine years in Andabet district, Northwest Ethiopia, 2022:a multi-level analysis (n = 624).

Fig 1

Variables of the study

Dependent variables

The dependent variable was the mother’s TPP.

Independent variables

For this study, the independent variables were classified as individual and community-level variables. The individual level variables were the Age of the mother, Mother’s education, Husband’s education, Occupation of the mother, Religion, Marital status, Number of children under nine years, age of the youngest child, Sex of the youngest child, Health education, Time taken to the water point, Basic trachoma Knowledge, Attitude towards trachoma and Amount of water used per person per day. Community-level variables for this study were Residence, Type of water source, and Community women’s illiteracy level.

Operational definition

Trachoma prevention practice assessment: is the assessment of the mother’s TPP towards F and E components of SAFE and is classified as good or poor based on the mean of the scores [1].

Basic trachoma Knowledge assessment: is the assessment of the mother’s basic knowledge of trachoma and is classified as good or poor based on the mean of the scores [17].

Attitude towards trachoma assessment: this is the assessment of the mother’s attitude towards trachoma and is classified as good or poor based on the mean of the scores [17,22,23].

Facial cleanliness: measured as an absence of ocular discharge, nasal discharge, and fly (ies) on the eye during the time of examination. If there was one from the list, considered not clean [24].

Ocular discharge: Any discharge around and/or in the eye at the time of examination [24].

Nasal discharge: any discharge seen in the nose at the time of examination [24].

Fly-eye: at least one fly contact with the eyelid margin during eye observation [7].

Time taken to the water source: collection time does not exceed 30 minutes.

Availability of water: An average person uses about 20 liters of water per day for domestic and personal hygiene [25].

Utilization of waste disposal pit: Disposal pits that had at least one of the following: discarded unwanted agricultural products, domestic products, or ashes (a burned sign of waste) were considered utilized, otherwise not [21].

Latrine utilization: Latrines that displayed at least two of the following during the observation: footpath to the latrine, fresh excreta inside the latrine, presence of a splash of urine, and the absence of a spider web of the squat were considered utilized, otherwise not [26].

Cleanness of compound: a household (residential) compound free from solid waste, liquid wastes, feces, animal dung, and domestic waste was considered clean [17].

Health education: Those who received education about trachoma and trachoma prevention at least once in the past two years were considered to have taken health education [21].

Cleanness of latrine: if there is at least one of these: human excreta out of the pit, stagnant urine, and unwanted trash on the floor of the latrine, it was not considered clean [27].

Community-women illiteracy: it is the aggregated community-level variable derived from maternal educational level and measured as the proportion of women with no formal education at the kebele/community level. Based on a median value it was then divided into low (mothers from communities with lower illiteracy levels) and high (mothers from communities with higher illiteracy levels) categories [28,29].

Data collection procedure and quality control

Quantitative data was collected through a face-to-face interview (supported by observation when it is important) by using an interviewer-administered questionnaire, which was adapted from different literature and modified to the context. The questionnaire was first developed in English language and then translated into Amharic (the local language). The questionnaire has six different parts. Part-I: comprising of socio-demographic questions, Part-II: comprises fifteen different knowledge-assessing questions, Part-III: comprises seven different attitude-assessing questions, Part-IV: comprises ten questions assessing the TPP, Part-V: comprises Environmental related questions and part-VI comprises the observation checklist.

Pretest was done on 5% of the total sample size at zeboye district in the south Gondar zone. After the pretest, necessary modifications and corrections took place to ensure validity. Four data collectors and one supervisor were recruited and trained for 1 day to collect and supervise the data respectively. The reliability of the question for TPP was checked by Cronbach alpha and the scale reliability coefficient was 0.795.

Data processing and statistical analysis

Data was entered into Epi-Data version 4.6 then data cleaning, coding, and analysis were done using STATA version 16. Descriptive statistics were reported using text, tables, and figures. The proportion of poor TPP with its 95% Confidence interval (CI) was reported. A multilevel logistic regression analysis was used to assess factors associated with TPP to consider the hierarchical nature of the data in which mothers were nested within-cluster and mothers within the same cluster are more likely to share similar characteristics than mothers in another cluster which violates the independent assumptions of the standard logistic regression model such as the independent and equal variance assumptions.

While conducting a multilevel binary logistic regression analysis, we fitted both random effect and fixed effect analyses. The random effect parameter, intraclass correlation coefficient (ICC) quantifies the degree of heterogeneity of TPP between clusters and an ICC of more than 10% indicates that accounting for the cluster-level variability of TPP using multi-level analysis is appropriate. Moreover, proportion change in variance (PCV), and median odds ratio (MOR) were assessed.

In fixed effect analysis, four models were fitted; model 1 (with the outcome variable only), model 2 (incorporating individual-level variables), model 3 (fitted with community-level variables), and model 4 (incorporating both individual and community-level variables simultaneously). Among the four models fitted, the last model (model 4) was selected as the best-fitted model since it has the lowest deviance and highest PCV. For all models fitted, the adjusted odds ratio (AOR) with its 95% CI was reported. However, the interpretations are based on the final model, the best-fit model.

Both bivariable and multivariable multilevel logistic regression was done and variables with p-value <0.2 in the bivariable analysis were considered multivariable analysis. Finally, variables with p<0.05 in the multivariable multilevel analysis were declared to be significantly associated with TPP.

Result

Socio-demographic characteristics of study participants

A total of 624 study participants were included in the study. With a mean age of 2, the majority (79.49%) of mothers had children aged less than or equal to two years. Most, 88.78% of mothers didn’t get health education about trachoma while more than half (57.2%) of them did not receive any formal education (Table 1).

Table 1. Socio-demographic characteristics of mothers having children aged under nine years in Andabet, northwest Ethiopia, 2022: a multi-level analysis (n = 624).

Variables Category Frequency Percentage
Mother’s age (in years) 15–24 88 14.10
25–34 312 50.00
35yrs and above 224 35.90
Residence Rural 450 72.12
Urban 174 27.88
Religion Orthodox 575 92.15
Muslim 49 7.85
Marital status Married 463 74.2
Not currently married 161 25.8
Educational level Of mother No formal education 357 57.21
primary 158 25.32
Secondary & above 109 17.47
Educational level Of father No formal education 233 50.32
primary 117 25.27
Secondary & above 113 24.41
Occupation of mothers farmer 297 47.60
Housewife 174 27.88
Government employee 37 5.93
Merchant 79 12.66
Daily laborer 37 5.93
Child age Above 2 yrs. 128 20.51
2yrs and under 2yrs 496 79.49
Sex of the child male 321 51.44
female 303 48.56
Taking health Education about trachoma yes 70 11.22
No 554 88.78
Community-women Illiteracy level high 243 38.94
low 381 61.06

Environmental and related characteristics

Around three-fourths (73.24%) of mothers got water from the river and 342 (54.81%) of them travel more than 30 minutes to get water. Around two third (64.9%) and 354(56.73%) of mothers had poor basic trachoma knowledge and attitude towards trachoma. Regarding cleanness of the compound, 448 (71.79%) of mothers had unclean house compound (Table 2).

Table 2. -Environmental and other related characteristics of mothers having children aged under nine years in Andabet district, northwest Ethiopia, 2022: a multi-level analysis (n = 624).

Variables Category Frequency Percentage
Source of water River 457 73.24
Household tap 167 26.76
Time taken to Water point < = 30 min 282 45.19
>30 min 342 54.81
Amount of water used per Person per day < = 20 liter 128 20.51
>20 liter 496 79.49
Frequency of Getting water All the time 516 82.69
Either day or night 17 2.72
In more than a day 91 14.59
Source of energy for cooking
electricity Yes 12 1.92
No 612 98.08
wood Yes 615 98.56
No 9 1.44
Animal dung Yes 610 97.76
No 14 2.24
Charcoal Yes 278 44.62
No 345 55.38
Type of household latrine used Covered pit latrine 414 84.49
Uncovered latrine 76 15.51
Cleanness of latrine Clean 327 67.01
Not clean 161 32.99
Availability of hand washing Material near to latrine Yes 15 3.07
No 473 96.93
Cleanness of the home compound Clean 176 28.21
Not clean 448 71.79
Availability of community latrine Yes 153 24.52
No 471 75.48
Basic trachoma Knowledge Good 219 35.1
Poor 405 64.9
Attitude towards Trachoma Good 354 56.73
Poor 270 43.27

The magnitude of Trachoma prevention practice

In this study 49.84% (95%CI: 45.91%, 53.76%) of TPP was good and 50.16% (95%CI: 46.23%, 54.08%) TPP was poor (Fig 2). More than two third of mothers had a clean face, 427 (68.43%), and three fourth of children in the study had an unclean face, 457 (73.24%). More than three fourth (77.40%) of the mothers use latrines (Table 3).

Fig 2. Trachoma prevention practice among mothers having children aged under nine years in Andabet district, Northwest Ethiopia,2022:a multi-level analysis (n = 624).

Fig 2

Table 3. -Trachoma prevention practice and associated factors among mothers having children aged under nine years in Andabet district, northwest Ethiopia,2022:a multi-level analysis (n = 624).

Variables Category Frequency Percentage
Mother facial cleanness Clean 427 68.43
Not clean 197 31.57
Child facial cleanness Clean 167 26.76
Not clean 457 73.24
Using soap for face washing Yes 491 78.69
No 133 21.31
Did not share fomites With family Yes 460 73.72
No 164 26.28
Separated house for Animal dwelling Yes 296 47.44
No 328 52.56
Availability of household Latrine Yes 488 78.21
No 136 21.79
Infant feces disposal To latrine Yes 482 77.24
No 142 22.76
Utilization of latrine Yes 483 77.40
No 141 22.60
Availability of waste Disposal pit Yes 289 46.39
No 334 53.61
Utilization of waste Disposal pit Yes 293 46.96
No 331 53.04

Random effect and model comparison

In the random effect analysis, in the null model, about 54% of the total variation in TPP occurred at the cluster level and is attributable to community-level factors. In addition, the null model also had the highest MOR value (6.51) indicating when randomly selecting a mother from one kebele with a higher risk of poor TPP and the other kebele at lower risk, mothers at the cluster (kebele) with a higher risk of poor TPP had 6.51 times higher odds of having a poor TPP as compared with their counterparts. Furthermore, the highest PCV (70.4%) in the final model (model 4) showed 70.4% of the variation in TPP across communities was explained by both individual and community-level factors. The model fitness was checked by using deviance and the model with the lowest deviance (model4) was the best-fitted model (Table 4).

Table 4. -random effect analysis in trachoma prevention practice among mothers having children aged under nine years in Andabet, Northwest Ethiopia,2022 (n = 624).

Parameter Model 1 Model 2 Model 3 Model 4
MOR 6.51 2.90 3.77 2.67
PCV Reff. 0.678 0.497 0.706
ICC 0.54 0.27 0.37 0.25
Deviance 583.69 536.13 576.34 531.74

Factors associated with trachoma prevention practice

In the multivariable multi-level logistic regression, maternal education level, maternal occupation, time taken to the water point, and health education about trachoma were significantly associated with poor TPP.

Mothers with no formal education had 2.95(AOR = 2.95; 95%CI: 1.41, 6.15) times higher odds of poor TPP as compared to those mothers with secondary education or above. Mothers with primary education had 2.33 (AOR = 2.33; 95%CI: 1.04, 5.24) times higher odds of poor TPP as compared to those mothers with secondary education or above. On maternal occupation, mothers who were farmers had 3.02(AOR = 3.02; 95%CI: 1.73, 5.28) times higher odds of poor TPP as compared to those mothers who were housewives. Mothers who were merchants had 2.63 (AOR = 2.63; 95%CI: 1.20, 5.75) times higher odds of poor TPP as compared to those mothers who were housewives. Regarding time taken to the water point, mothers who traveled >30 minutes to the water point had 4.60 (AOR = 4.60, 95CI:1.30, 16.26) times higher odds of poor TPP as compared to those mothers who traveled ≤30 minutes. Mothers who didn’t receive health education about trachoma had 2.36 (AOR = 2.36; 95%CI: 1.16, 4.79) times higher odds of poor TPP compared to their counterparts (Table 5).

Table 5. -Multilevel logistic regression analysis factors associated with trachoma prevention practice among mothers having children aged under nine years in Andabet district, Northwest Ethiopia,2022:a multi-level analysis (n = 624).

variables Model 1 Mode 2 AOR 95%(CI) Mode 3 AOR 95%(CI Mode 4 AOR 95%(CI)
Maternal education
No formal education 2.97(1.42,6.19) 2.95(1.41,6.15)**
Primary 2.36 (1.05, 5.32) 2.33(1.04,5.24)*
Secondary & above 1.00 1.00
Maternal occupation
housewife 1.00 1.00
farmer 3.16(1.82,5.50) 3.02(1.73,5.28)***
Government employee 1.40(0.45,4.35) 1.39(0.44,4.37)
Merchant 2.64(1.21,5.75) 2.63(1.20,5.75) *
Daily laborer 1.64(0.61,4.41) 1.61(0.60,4.36)
Frequency of getting water
All the time 1.00 1.00
Day or night 0.45(0.10,2.32) 0.51(0.10,2.50)
In > a day 0.48(0.2,1.13) 0.50(0.21,1.19)
Time taken to water point
≤30 minute 1.00 1.00
> 30 minutes 5.85(1.70,20.10) 4.60(1.30,16.26)*
Health education about trachoma
No 2.25(1.11,4.57) 2.36(1.16,4.79)*
Yes 1.00 1.00
Source of water
River 0.45(0.07,3.15) 0.54(0.07,4.26)
Household tap 1.00 1.00
Residence
Rural 3.53(0.53,23.54) 3.16(0.42,23.70)
Urban 1.00 1.00
Community-women illiteracy
Low 0.09(0.01,0.87) 0.46(0.1,3.55)
High 1.00 1.00

Note

*** = P<0.001

** P<0.01, and

* = P<0.05

Discussion

The study aimed to assess the magnitude and associated factors of TPP in the andabet district, Northwest Ethiopia. According to the finding of this study, the magnitude of poor TPP was 50.16%. This finding is in line with a study conducted in Oromia Ethiopia [1]. However, this magnitude of poor TPP was found lower compared to a study conducted in Tigray [17] and higher than a study conducted in north Vietnam and the Lemo district of Southern Ethiopia [21,30]. The discrepancy might be due to the difference in the study population as in most of the indicated studies (except the study in Oromia, Ethiopia, 2021) children under nine years were their study subjects. Besides, most of the above studies were based on smaller sample size. The other possible explanation might be the study period and the difference in the availability and accessibility of maternal health services and facilities. Moreover, the discrepancy of this finding with that of the findings of studies conducted out of Ethiopia might be due to socio-demographic and cultural differences.

The study at hand found that Mothers with no formal education and mothers with primary education are more likely to have poor prevention practice as compared with those mothers with secondary or above. This is supported by a study done in Vietnam [30], which similarly showed that those with no formal education are more likely to have poor prevention practice. This might be due to the levels and ways of understanding regarding the mechanism of transmission, prevention measures, and negative effects of the diseases being different among mothers with different levels of education. That is educated mothers would likely appreciate the problems related to poor prevention practice more than those with no formal education [30,31].

In this study, health education is another important variable significantly associated with TPP. That is mothers who didn’t receive health education about trachoma were more likely to have poor TPP as compared to their counterparts. This finding is supported by a study conducted in the lemo district [21]. Such a correlation could be because mothers who have not attended health education programs lack the skills needed to prevent trachoma. Hence, they are more likely to have cultural misconceptions about how to use water for environmental sanitation and personal hygiene [32,33].

Moreover, in this study mothers who were farmers and merchants were more likely to have poor TPP as compared to those mothers who were housewives. It might be because based on our study 88% of farmers and 93.6% of merchants did not receive health education programs on trachoma. In addition, most (81.5%) of them have to travel more than 30 minutes to get water making it more difficult for them to clean their face and improve their environment than those who are housewives.

Consistent with other studies conducted in Kenya and Oromia [1,34], in this study, the time taken to the water point is significantly associated with TPP. That is mothers who traveled more than 30 minutes to the water point had higher odds of poor TPP as compared to their counterparts. This might be because access to and adequacy of water differs between mothers who travel over 30 minutes and those who travel less than 30 minutes. Mothers who have insufficient water may not be able to use it for facial and environmental cleanliness. Furthermore, based on our study, the majority (81.5%) of mothers traveling over 30 minutes for water get it from unclean streams. while most (74%) of those mothers traveling less than 30 minutes get it from relatively clean personal and public pipes [34].

Strengths and limitations of the study

There were strengths and shortcomings in this study. To begin with the strength, this study explored neglected tropical disease that became hyper-endemic in our study area after the implementation of SAFE for about 8 to 11 years. So the result of the study would be important for employing combined efforts to address identified modifiable risk factors and will have significant policy implications in providing support to the affected community. Besides, the study uses multi-level modeling taking into account the clustering effect to draw valid inference and conclusion. Moreover, to ensure representativeness, the study uses an adequate sample size. However, this study had limitations as it’s a cross-sectional study. It may not show a true temporal relationship between the outcome and the independent variables. Besides, due to the lack of sign language-trained data collectors and the inability to obtain psychiatric therapists as data collectors, it was not possible to include those mothers with mental illness and hearing problems, although we do not expect a significant number of such women in the targeted communities. Moreover, the study mainly relies on the mother’s self-report, so there may be a chance of recall bias. Furthermore, Social desirability bias might be introduced while assessing sensitive variables.

Conclusion

In this study, the magnitude of poor TPP was high relative to other studies. Those mothers with no formal education, with primary education, those who take more time to water point (>30 minutes), those who didn’t receive health education about trachoma, and those who were farmers and merchants were at higher odds of poor TPP. Therefore, special attention should be given to these high-risk groups so that this devastating health problem can be decreased.

Recommendations

To governmental and non-governmental organizations: focus on facial cleanliness (F) and Environmental improvement (E) components of the WHO recommended SAFE strategy for the elimination of trachoma especially in highly endemic countries like Ethiopia.

To Amhara region trachoma control program: planning health education program and enhancing water supply are recommended to improve TPP overall.

To the health office in Andabet district: special attention should be given to those mothers with no formal education and primary education and who reside far from a water source. Besides, health education programs about trachoma should be strengthened.

To the global trachoma community: The low coverage in “Trachoma Prevention Practice” will negatively affect the efforts of the WHO-launched global alliance for the elimination of blinding Trachoma. Therefore, it is recommended to give special attention to those communities regarding the Facial cleanliness (F) and Environmental Improvement (E) components of the SAFE strategy.

Supporting information

S1 Dataset. Data TPP.

(ZIP)

Acknowledgments

We are grateful to the Department of Optometry, study participants, and data collectors.

Data Availability

All relevant data are within the paper and its Supporting Information files.

Funding Statement

The University of Gondar funded this study (grant number: 556/2022, grant recipient: ZAA). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.

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PLoS Negl Trop Dis. doi: 10.1371/journal.pntd.0011433.r001

Decision Letter 0

Joseph M Vinetz

6 Mar 2023

Dear Miss Asmare,

Thank you very much for submitting your manuscript "Trachoma prevention practice and associated factors among mothers having children aged under nine years in Andabet district, northwest Ethiopia, 2022 :a multi-level analysis" for consideration at PLOS Neglected Tropical Diseases. As with all papers reviewed by the journal, your manuscript was reviewed by members of the editorial board and by several independent reviewers. In light of the reviews (below this email), we would like to invite the resubmission of a significantly-revised version that takes into account the reviewers' comments.

We cannot make any decision about publication until we have seen the revised manuscript and your response to the reviewers' comments. Your revised manuscript is also likely to be sent to reviewers for further evaluation.

When you are ready to resubmit, please upload the following:

[1] A letter containing a detailed list of your responses to the review comments and a description of the changes you have made in the manuscript. Please note while forming your response, if your article is accepted, you may have the opportunity to make the peer review history publicly available. The record will include editor decision letters (with reviews) and your responses to reviewer comments. If eligible, we will contact you to opt in or out.

[2] Two versions of the revised manuscript: one with either highlights or tracked changes denoting where the text has been changed; the other a clean version (uploaded as the manuscript file).

Important additional instructions are given below your reviewer comments.

Please prepare and submit your revised manuscript within 60 days. If you anticipate any delay, please let us know the expected resubmission date by replying to this email. Please note that revised manuscripts received after the 60-day due date may require evaluation and peer review similar to newly submitted manuscripts.

Thank you again for your submission. We hope that our editorial process has been constructive so far, and we welcome your feedback at any time. Please don't hesitate to contact us if you have any questions or comments.

Sincerely,

Joseph M. Vinetz

Section Editor

PLOS Neglected Tropical Diseases

Joseph Vinetz

Section Editor

PLOS Neglected Tropical Diseases

***********************

Reviewer's Responses to Questions

Key Review Criteria Required for Acceptance?

As you describe the new analyses required for acceptance, please consider the following:

Methods

-Are the objectives of the study clearly articulated with a clear testable hypothesis stated?

-Is the study design appropriate to address the stated objectives?

-Is the population clearly described and appropriate for the hypothesis being tested?

-Is the sample size sufficient to ensure adequate power to address the hypothesis being tested?

-Were correct statistical analysis used to support conclusions?

-Are there concerns about ethical or regulatory requirements being met?

Reviewer #1: The study is very important for the global trachoma community for decision making at global/international, national, regional, district and community levels by all stakeholders involved as Ethiopia currently has an estimated 50% of the global population requiring interventions for trachoma elimination. Addressing the trachoma problem in Ethiopia is potentially wiping out half the global trachoma problem. There is enough information that shows that the study is important and worthy of publication. However, major revision is needed. The overall presentation is poor. Grammar is poor. I suggest the authors find someone who can proofread and the many grammatic mistakes.

Objectives should be revised. See my comments in the attached file. They are not clearly articulated.

I believe that the study design is appropriate to address the stated objectives.

The population is clearly described and appropriate for the hypothesis being tested.

The sample size looks sufficient to ensure adequate power to address the hypothesis being tested.

I believe that correct statistical analysis was used to support conclusions although I may not ne strong enough on statistical methods.

Selection of participants is generally ethical and meets regulatory requirements. However, some women were excluded with weak justification for the exclusion. Better explanation needed in the limitation section.

--------------------

Results

-Does the analysis presented match the analysis plan?

-Are the results clearly and completely presented?

-Are the figures (Tables, Images) of sufficient quality for clarity?

Reviewer #1: The study is a replication of similar studies conducted in other parts of the country and in other countries. The analysis matches the analysis plan. Results are completely presented. The authors need to improve the presentation in general.

--------------------

Conclusions

-Are the conclusions supported by the data presented?

-Are the limitations of analysis clearly described?

-Do the authors discuss how these data can be helpful to advance our understanding of the topic under study?

-Is public health relevance addressed?

Reviewer #1: Conclusions are supported by the data presented but presentation is generally poor.

The limitations of analysis are described but more work needed.

The authors tried to discuss how these data can be helpful to advance our understanding of the topic under study, but more work is needed to improve the presentation of the study.

Authors have poorly addressed the public health relevance of the study. I have made some suggestions in the attached file.

--------------------

Editorial and Data Presentation Modifications?

Use this section for editorial suggestions as well as relatively minor modifications of existing data that would enhance clarity. If the only modifications needed are minor and/or editorial, you may wish to recommend “Minor Revision” or “Accept”.

Reviewer #1: I have added my editorial suggestions in the attached file.

--------------------

Summary and General Comments

Use this section to provide overall comments, discuss strengths/weaknesses of the study, novelty, significance, general execution and scholarship. You may also include additional comments for the author, including concerns about dual publication, research ethics, or publication ethics. If requesting major revision, please articulate the new experiments that are needed.

Reviewer #1: The study is a replication of studies conducted in other countries and in other parts of Ethiopia to assess community practices that influence trachoma prevention and elimination. Half the global population requiring intervention for trachoma elimination is in Ethiopia where some regions/districts have up to 37% TF rate (hyperendemicity) after years of A treatment. This study demonstrates the need to consider support for the introduction of other interventions (F and E) for trachoma elimination in Ethiopia and thus elimination of an estimated half the global burden. I believe that the essential information needed (objectives, methodology, result) is available in this draft of the manuscript. However, overall presentation is poor with too many grammatic errors. Authors should take time to improve the presentation including finding someone who can proofread and edit the manuscript for them. I have made some suggestions in the attached file.

--------------------

PLOS authors have the option to publish the peer review history of their article (what does this mean?). If published, this will include your full peer review and any attached files.

If you choose “no”, your identity will remain anonymous but your review may still be made public.

Do you want your identity to be public for this peer review? For information about this choice, including consent withdrawal, please see our Privacy Policy.

Reviewer #1: No

Figure Files:

While revising your submission, please upload your figure files to the Preflight Analysis and Conversion Engine (PACE) digital diagnostic tool, https://pacev2.apexcovantage.com. PACE helps ensure that figures meet PLOS requirements. To use PACE, you must first register as a user. Then, login and navigate to the UPLOAD tab, where you will find detailed instructions on how to use the tool. If you encounter any issues or have any questions when using PACE, please email us at figures@plos.org.

Data Requirements:

Please note that, as a condition of publication, PLOS' data policy requires that you make available all data used to draw the conclusions outlined in your manuscript. Data must be deposited in an appropriate repository, included within the body of the manuscript, or uploaded as supporting information. This includes all numerical values that were used to generate graphs, histograms etc.. For an example see here: http://www.plosbiology.org/article/info%3Adoi%2F10.1371%2Fjournal.pbio.1001908#s5.

Reproducibility:

To enhance the reproducibility of your results, we recommend that you deposit your laboratory protocols in protocols.io, where a protocol can be assigned its own identifier (DOI) such that it can be cited independently in the future. Additionally, PLOS ONE offers an option to publish peer-reviewed clinical study protocols. Read more information on sharing protocols at https://plos.org/protocols?utm_medium=editorial-email&utm_source=authorletters&utm_campaign=protocols

Attachment

Submitted filename: PNTD-D-22-01493-Koroma comments.pdf

PLoS Negl Trop Dis. doi: 10.1371/journal.pntd.0011433.r003

Decision Letter 1

Joseph M Vinetz

11 May 2023

Dear Miss Asmare,

Thank you very much for submitting your manuscript "Trachoma prevention practice and associated factors among mothers having children aged under nine years in Andabet district, northwest Ethiopia, 2022: A multi-level analysis" for consideration at PLOS Neglected Tropical Diseases. As with all papers reviewed by the journal, your manuscript was reviewed by members of the editorial board and by several independent reviewers. The reviewers appreciated the attention to an important topic. Based on the reviews, we are likely to accept this manuscript for publication, providing that you modify the manuscript according to the review recommendations.

Please prepare and submit your revised manuscript within 30 days. If you anticipate any delay, please let us know the expected resubmission date by replying to this email.

When you are ready to resubmit, please upload the following:

[1] A letter containing a detailed list of your responses to all review comments, and a description of the changes you have made in the manuscript.

Please note while forming your response, if your article is accepted, you may have the opportunity to make the peer review history publicly available. The record will include editor decision letters (with reviews) and your responses to reviewer comments. If eligible, we will contact you to opt in or out

[2] Two versions of the revised manuscript: one with either highlights or tracked changes denoting where the text has been changed; the other a clean version (uploaded as the manuscript file).

Important additional instructions are given below your reviewer comments.

Thank you again for your submission to our journal. We hope that our editorial process has been constructive so far, and we welcome your feedback at any time. Please don't hesitate to contact us if you have any questions or comments.

Sincerely,

Joseph M. Vinetz

Section Editor

PLOS Neglected Tropical Diseases

Joseph Vinetz

Section Editor

PLOS Neglected Tropical Diseases

***********************

Reviewer's Responses to Questions

Key Review Criteria Required for Acceptance?

As you describe the new analyses required for acceptance, please consider the following:

Methods

-Are the objectives of the study clearly articulated with a clear testable hypothesis stated?

-Is the study design appropriate to address the stated objectives?

-Is the population clearly described and appropriate for the hypothesis being tested?

-Is the sample size sufficient to ensure adequate power to address the hypothesis being tested?

-Were correct statistical analysis used to support conclusions?

-Are there concerns about ethical or regulatory requirements being met?

Reviewer #1: Manuscript was revised well needing only minor revisions before publication.

--------------------

Results

-Does the analysis presented match the analysis plan?

-Are the results clearly and completely presented?

-Are the figures (Tables, Images) of sufficient quality for clarity?

Reviewer #1: Manuscript was revised well needing only minor revisions before publication.

--------------------

Conclusions

-Are the conclusions supported by the data presented?

-Are the limitations of analysis clearly described?

-Do the authors discuss how these data can be helpful to advance our understanding of the topic under study?

-Is public health relevance addressed?

Reviewer #1: Manuscript was revised well needing only minor revisions before publication.

--------------------

Editorial and Data Presentation Modifications?

Use this section for editorial suggestions as well as relatively minor modifications of existing data that would enhance clarity. If the only modifications needed are minor and/or editorial, you may wish to recommend “Minor Revision” or “Accept”.

Reviewer #1: Most of the revision needed is on use of acronym. In line 28 please write "trachoma prevention practices" in full followed by the acronym in bracket (TPP). Afterwards, just put TPP. Use the acronym TPP instead of in full in line 31, 47,49, 86-87, 91,92,93, 94,96,118, 151, 160-161, 200,205,210,211-212, 218, 219-220, 231, 252,253, 264-265, 267, 268-269, 269, 271, 281, 283, 283, 287, 289, 291-292, 294, 301, 303,304, 321-322, 323, 329, 335, 336-337, 359, 362, 369. I might have missed some. Please go through and change accordingly.

Abstract: World Health Organization (WHO). I suggest you use 'cleanliness' throughout when referring to the SAFE strategy. Put TPP in bracket after trachoma prevention practices as you have used the acronym later in the abstract. On dates, I believe you say from June 5 to June 10, 2022. Remove 'from' and the date is still good (was conducted June 1-30, 2022.

Line 25: World Health Organization (WHO).

Line 34: remove 'from'

Line 37: small 'v'

Line 57: for consistency, please use 'cleanliness'.

Line 74: remove the 's' from disease, use singular as it is just trachoma.

Line 84-85: please improve on this sentence as it is vague, not clear enough what you are saying.

Line 87: small 's'.

Line 100 and 107: remove 'from'.

Line 119: no brackets please.

Line 120: add comma after 'rate'.

Line 127: please replace 'of' with 'that'.

Line 129: small 'c'.

Line 143: please replace highlighted words with 'were' and add a comma after 'visits'.

Line 155: comma after status.

Line 164: add a full stop after the bracket.

Line 167: 'ies' in the bracket, not just 's' as plural of fly is flies.

Line 174: small 'd'.

Line 189: dived or divided?

Line 195: use comma, then small 'w'.

Line 235: capital 'M'.

Line 246: full stop after bracket.

Line 286: Capital 'O'.

Line 306: capital 'S'.

Line 307: i suggest you use 'as in' or because in'.

Line 308: comma after 'besides'.

Line 309: I suggest you use 'smaller'.

Line 309: better to use 'might be'.

Line 310: 'difference' better.

Line 315: use comma, not full stop.

Line 322: better to use 'receive".

Line 328: comma after moreover.

Line 331: space, then capital 'I'.

Line 337: suggest you use 'because'.

Line 338: full stop after minutes.

Line 345: 'a neglected tropical disease', not diseases as you are referring to just trachoma.

Line 346: full stop please.

Line 347: in place of 'to', use 'to address'.

Line 348: Full stop after 'community'. Then start next sentence with a capital B.

Line 351: full stop instead of comma.

Line 352: small 'd'.

Line 354-355: sounds negative as written here. I suggest instead "although we do not expect a significant number of such women in the targeted communities".

Line 362-363-364: please rewrite. I suggest " Therefore, special attention should be given to these high-risk groups so that this devastating health problem can be decreased".

Line 366: cleanliness.

Line 367: I suggest 'the WHO-recommended SAFE strategy for elimination of trachoma especially in highly endemic countries like Ethiopia".

Line 371: use 'reside far".

Line 373-374: I suggest "will negatively affect efforts of the ".

Line 374: elimination, not illumination.

--------------------

Summary and General Comments

Use this section to provide overall comments, discuss strengths/weaknesses of the study, novelty, significance, general execution and scholarship. You may also include additional comments for the author, including concerns about dual publication, research ethics, or publication ethics. If requesting major revision, please articulate the new experiments that are needed.

Reviewer #1: I believe that this is a good study conducted in Ethiopia and that this manuscript will again highlight the need for special support for the implementation of the F and E components of the WHO-recommended SAFE strategy in countries like Ethiopia that currently has about 50% of the global trachoma burden if the disease is to be eliminated as a public health problem globally. The authors have significantly improved the presentation.

--------------------

PLOS authors have the option to publish the peer review history of their article (what does this mean?). If published, this will include your full peer review and any attached files.

If you choose “no”, your identity will remain anonymous but your review may still be made public.

Do you want your identity to be public for this peer review? For information about this choice, including consent withdrawal, please see our Privacy Policy.

Reviewer #1: No

Figure Files:

While revising your submission, please upload your figure files to the Preflight Analysis and Conversion Engine (PACE) digital diagnostic tool, https://pacev2.apexcovantage.com. PACE helps ensure that figures meet PLOS requirements. To use PACE, you must first register as a user. Then, login and navigate to the UPLOAD tab, where you will find detailed instructions on how to use the tool. If you encounter any issues or have any questions when using PACE, please email us at figures@plos.org.

Data Requirements:

Please note that, as a condition of publication, PLOS' data policy requires that you make available all data used to draw the conclusions outlined in your manuscript. Data must be deposited in an appropriate repository, included within the body of the manuscript, or uploaded as supporting information. This includes all numerical values that were used to generate graphs, histograms etc.. For an example see here: http://www.plosbiology.org/article/info%3Adoi%2F10.1371%2Fjournal.pbio.1001908#s5.

Reproducibility:

To enhance the reproducibility of your results, we recommend that you deposit your laboratory protocols in protocols.io, where a protocol can be assigned its own identifier (DOI) such that it can be cited independently in the future. Additionally, PLOS ONE offers an option to publish peer-reviewed clinical study protocols. Read more information on sharing protocols at https://plos.org/protocols?utm_medium=editorial-email&utm_source=authorletters&utm_campaign=protocols

References

Please review your reference list to ensure that it is complete and correct. If you have cited papers that have been retracted, please include the rationale for doing so in the manuscript text, or remove these references and replace them with relevant current references. Any changes to the reference list should be mentioned in the rebuttal letter that accompanies your revised manuscript. If you need to cite a retracted article, indicate the article's retracted status in the References list and also include a citation and full reference for the retraction notice.

Attachment

Submitted filename: PNTD-D-22-01493_R1-1-highlights-comments.pdf

PLoS Negl Trop Dis. doi: 10.1371/journal.pntd.0011433.r005

Decision Letter 2

Joseph M Vinetz

2 Jun 2023

Dear Miss Asmare,

We are pleased to inform you that your manuscript 'Trachoma prevention practice and associated factors among mothers having children aged under nine years in Andabet district, northwest Ethiopia, 2022: A multi-level analysis' has been provisionally accepted for publication in PLOS Neglected Tropical Diseases.

Before your manuscript can be formally accepted you will need to complete some formatting changes, which you will receive in a follow up email. A member of our team will be in touch with a set of requests.

Please note that your manuscript will not be scheduled for publication until you have made the required changes, so a swift response is appreciated.

IMPORTANT: The editorial review process is now complete. PLOS will only permit corrections to spelling, formatting or significant scientific errors from this point onwards. Requests for major changes, or any which affect the scientific understanding of your work, will cause delays to the publication date of your manuscript.

Should you, your institution's press office or the journal office choose to press release your paper, you will automatically be opted out of early publication. We ask that you notify us now if you or your institution is planning to press release the article. All press must be co-ordinated with PLOS.

Thank you again for supporting Open Access publishing; we are looking forward to publishing your work in PLOS Neglected Tropical Diseases.

Best regards,

Joseph M. Vinetz

Section Editor

PLOS Neglected Tropical Diseases

Joseph Vinetz

Section Editor

PLOS Neglected Tropical Diseases

***********************************************************

PLoS Negl Trop Dis. doi: 10.1371/journal.pntd.0011433.r006

Acceptance letter

Joseph M Vinetz

16 Jun 2023

Dear Miss Asmare,

We are delighted to inform you that your manuscript, "Trachoma prevention practice and associated factors among mothers having children aged under nine years in Andabet district, northwest Ethiopia, 2022: A multi-level analysis," has been formally accepted for publication in PLOS Neglected Tropical Diseases.

We have now passed your article onto the PLOS Production Department who will complete the rest of the publication process. All authors will receive a confirmation email upon publication.

The corresponding author will soon be receiving a typeset proof for review, to ensure errors have not been introduced during production. Please review the PDF proof of your manuscript carefully, as this is the last chance to correct any scientific or type-setting errors. Please note that major changes, or those which affect the scientific understanding of the work, will likely cause delays to the publication date of your manuscript. Note: Proofs for Front Matter articles (Editorial, Viewpoint, Symposium, Review, etc...) are generated on a different schedule and may not be made available as quickly.

Soon after your final files are uploaded, the early version of your manuscript will be published online unless you opted out of this process. The date of the early version will be your article's publication date. The final article will be published to the same URL, and all versions of the paper will be accessible to readers.

Thank you again for supporting open-access publishing; we are looking forward to publishing your work in PLOS Neglected Tropical Diseases.

Best regards,

Shaden Kamhawi

co-Editor-in-Chief

PLOS Neglected Tropical Diseases

Paul Brindley

co-Editor-in-Chief

PLOS Neglected Tropical Diseases

Associated Data

    This section collects any data citations, data availability statements, or supplementary materials included in this article.

    Supplementary Materials

    S1 Dataset. Data TPP.

    (ZIP)

    Attachment

    Submitted filename: PNTD-D-22-01493-Koroma comments.pdf

    Attachment

    Submitted filename: response for reviewer comment.docx

    Attachment

    Submitted filename: PNTD-D-22-01493_R1-1-highlights-comments.pdf

    Attachment

    Submitted filename: response for reviewer comment.docx

    Data Availability Statement

    All relevant data are within the paper and its Supporting Information files.


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