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PLOS Global Public Health logoLink to PLOS Global Public Health
. 2023 Dec 22;3(12):e0002498. doi: 10.1371/journal.pgph.0002498

Bullying victimization among in-school adolescents in Sierra Leone: A cross-sectional analysis of the 2017 Sierra Leone Global School-Based Health Survey

Augustus Osborne 1,*, Peter Bai James 2,3, Camilla Bangura 1, Samuel Maxwell Tom Williams 1, Jia Bainga Kangbai 4, Aiah Lebbie 1
Editor: Lola Kola5
PMCID: PMC10745186  PMID: 38134001

Abstract

Adolescent bullying victimization is recognized as a public health and mental health problem in many countries. However, data on bullying victimization’s prevalence and risk factors is scarce in sub-Saharan Africa Sierra Leone. This research aimed to determine bullying victimization prevalence and its associated factors among Sierra Leonean school-going adolescents. The Sierra Leone 2017 Global School-based Health Survey (GSHS) dataset was analyzed. The outcome variable was the respondent’s self-report of bullying victimization ("How many days in the previous 30 days were you bullied?"). Descriptive, Pearson chi-square and binary logistic regression analyses were conducted. The regression analysis yielded adjusted odds ratios (aOR) with 95% confidence intervals (CIs) and a significance level of p 0.05. Bullying victimization was prevalent among 48.7% of the in-school adolescents. Adolescents who drank alcohol [aOR = 2.48, 95% CI = 1.50–4.10], who reported feelings of loneliness [aOR = 1.51, 95% CI = 1.07–2.14] and who had attempted suicide [aOR = 1.72, 95% CI = 1.03–2.87] were also more likely to be bullied. Also, school truancy [aOR = 1.53, 95% CI = 1.24–1.88] among teenagers was associated with an increased risk of being bullied. Our findings suggest that bullying is a widespread problem among Sierra Leonean school-aged youth, and alcohol drinking, loneliness, suicide attempt and school truancy are potential risk factors. In light of the aforementioned causes of bullying in schools, policymakers and school administrators in Sierra Leone need to develop and execute anti-bullying policies and initiatives that target the underlying risk factors of bullying among teenagers.

Introduction

Approximately 32% of adolescents have experienced peer bullying at school on one or many occasions. The Middle East, North Africa, and sub-Saharan Africa exhibit the highest prevalence of pupils reporting instances of bullying, whereas Central America, the Caribbean, and Europe demonstrate the lowest rates. [13] Bullying is a form of aggressive behaviour intended to cause harm or distress to the victim, and it can take many forms, including physical, verbal, and psychological. It is a pervasive problem that affects adolescents in many countries and can lead to various negative outcomes, such as depression, anxiety, low self-esteem, and even suicide [3].

Sierra Leone is a country in sub-Saharan Africa that has been identified as having a particularly high prevalence of bullying victimization among in-school adolescents [4]. This is concerning, as bullying victimization can seriously affect young people’s physical and mental health. According to [5], the prevalence of bullying victimization among in-school adolescents in sub-Saharan Africa was 38.8%. Sierra Leone had the highest prevalence rate of bullying victimization at 54.6%, while Mauritius had the lowest rate at 22.2%. The study also found that socio-cultural, contextual, and socio-economic variations in the sub-region could contribute to bullying victimization. The post-conflict dynamics in Sierra Leone could trigger compulsive behaviours in school-going adolescents who may still have social exclusion through turbulent moments [6].

Understanding the risk factors contributing to bullying victimization among in-school adolescents in Sierra Leone is important for developing effective interventions to address the issue. A Ghanian study found that students engaging in physical fights, being attacked physically, are injured, lonely, attempted suicide, and were current users of marijuana associated with bullying victimization among in-school adolescents [5]. These findings suggest that interventions to address bullying victimization need to consider the broader social and cultural context in which it occurs and should involve families, communities, and schools [5].

In addition, to the negative effects on mental health, research has indicated that adolescents who skip school or drop out are more likely to become victims of bullying and this can have long-term consequences for their future opportunities and well-being.[6], Addressing bullying victimization in schools is therefore important for young people’s mental health, academic success, and future prospects. Many interventions can be used to address bullying victimization among in-school adolescents. These include school-based programs that promote positive behaviours, reduce aggressive behaviour, and support victims and their families. Parental involvement in these programs can also be effective in reducing bullying victimization. Peer support programs, such as peer mentoring and peer counselling, can also effectively reduce bullying victimization and improve mental health outcomes for victims [6].

Child and adolescent mental health in Sierra Leone have received limited attention, but there have been endeavours to enhance child and adolescent mental healthcare in a low resource country. The school’s curriculum incorporates a comprehensive approach to health education. The curriculum encompasses various subjects, including sexual and reproductive health, hygienic practises, nutritional education, substance misuse prevention, and mental health awareness. Acknowledging the significance of mental health, school health services integrate counselling and support provisions aimed at assisting adolescents in managing stress, anxiety, and other mental health difficulties. Schools often coordinate and implement routine health campaigns and awareness programmes. These campaigns aim to tackle concerns such as HIV/AIDS prevention, malaria control, and vaccine initiatives, with the goal of equipping adolescents with comprehensive knowledge regarding preventive measures [7].

In Sierra Leone, no studies have examined the prevalence of bullying or its effects on its victims. More research is needed to understand better the correlates of bullying victimization among Sierra Leonean in-school adolescents; this will assist in guiding public health initiatives to reduce the incidence of bullying victimization in school settings. This research sought to determine bullying victimization prevalence and its associated factors among Sierra Leonean school-going adolescents.

Materials and methods

Sample and procedure

The 2017 Global School Health Survey (GSHS) in Sierra Leone provided a cross-sectional dataset that we were able to utilize [8]. The Sierra Leone data collection uses a two-stage cluster sampling methodology to collect an accurate cross-section of the country’s 10–19-year-old student population. The first step includes picking schools with a probability proportional to students’ enrolment. The second stage is randomly picking classes such that every student has an equal chance of being selected. The response rates for schools in Sierra Leone’s GSHS were 94%, and the student response rate was 87% [8]. Our study aligns with STROBE guidelines for observational studies (S1 Checklist). The GSHS dataset provides a nationally representative information on health behaviours and protective factors that are predisposing factor morbidity and mortality among adolescents in middle- and lower-income countries [9]. The goal is to support school health and youth health programs and policies worldwide.

GSHS collects data on the following health behaviours—alcohol use, tobacco use, dietary behaviours, drug use, hygiene, mental health and physical activity and violence and unintentional injury. Also, collects data on sexual behaviours such as HIV infection, other sexually transmitted infections, and unintended pregnancy. Protective factors include peer and parental support [9].

Outcome variable

The study’s dependent variable was bullying victimization. The original question was, "How many days in the last 30 days have you been bullied?" Answers 1 represented no days, 2 represented 1 or 2 days, 3 represented 3 to 5 days, 4 represented 6 to 9 days, 5 represented 10 to 19 days, 6 represented 20 to 29 days, and 7 represented all 30 days. In this analysis, yes/no answers were the only possible outcomes. We classified adolescents as "Yes" if they reported being bullied at least once in the last 30 days and as "No" if they reported never being bullied (1 = 0 days). The replies were classified based on research by [5,10].

Explanatory variables

The explanatory factors employed in the analysis were selected because of their availability in the GSHS dataset and historical connections with the dependent variables (e.g., [5,10]). Age, gender, grade, truancy, alcohol usage, suicidal thoughts, suicide attempt, loneliness, anxiety, and being bullied were some demographic and health risk characteristics examined. The protective factors are (peer support, close friends, parental or guardian supervision, parental or guardian bonding, and parental or guardian connectedness). Our research variables have been widely utilized and verified in prior research [5,10]. (Table 1) displays a thorough explanation of the variables and the recoded replies.

Table 1. Study variables.

Variable Survey question Original response options Recoded
Age How old are you? 11–18 years (coded categorically) 1–4 = ≤14years; 5–8 = ≥15years
Sex What is your sex? 1 = male; 2 = female 1 = male; 0 = female
Grade In what grade are you? 1 Jnr Sec (JSS) 2 to 5 Snr Sec (SSS) 3 N/A
Current alcohol use During the past 30 days, how many days did you have at least one drink containing alcohol? 1 = 0 days to 7 = All 30 days
1 = 0, 2–7 = 1
Cannabis use During your life, how many times have you used marijuana 1 = 0 times to 5 = 20 or more times
1 = 0 and 2–5 = 1
Suicidal Ideation
During the past 12 months, did you ever seriously consider attempting suicide?
Yes = 1; no = 2 Yes = 1 and no = 0
Suicidal plan During the past 12 months, did you make a plan About how you would attempt suicide?
Yes = 1; no = 2 Yes = 1 and no = 0
Suicidal attempt During the past 12 months, how many times did you actually attempt suicide?
1 = 0 times to 5 = 6 times or more 1 = 0 and 2–5 = 1
Close friends How many close friends do you have? 1 = 0 and 4 = 3 or more 1 = 0 and 2–4 = 1
Loneliness During the past 12 months, how often have you felt lonely? 1 = never to 5 = always
1–3 = 0 and 4–5 = 1
Anxiety During the past 12 months, how often have you been so worried about something that you could not sleep at night? 1 = never to 5 = always
1–3 = 0 and 4–5 = 1
Bullied During the past 30 days, how many days were you bullied?
1 = 0 days to 7 = all 30 days 1 = 0 and 2–7 = 1
School truancy
During the past 30 days, how many days did you miss classes or school without permission? 1 = 0 days to 5 = 10 or more days 1 = 0 and 2–5 = 1
Peer support During the past 30 days, how often were most of the students in your school kind
and helpful?
1 = never to 5 = always
1–3 = 0 and 4–5 = 1
Parental monitoring During the past 30 days, how often did your parents or guardians check to see if your homework was done? 1 = never to 5 = always
1–3 = 0 and 4–5 = 1
Parental understanding During the past 30 days, how often did your parents or guardians understand
your problems and worries?
1 = never to 5 = always
1–3 = 0 and 4–5 = 1
Parental bonding During the past 30 days, how often did your parents or guardians really know
what were you doing with your free time?
1 = never to 5 = always
1–3 = 0 and 4–5 = 1
Parental intrusion of
privacy
During the past 30 days, how often did your parents or guardians go through your
things without your approval?
1 = never to 5 = always
1–3 = 0 and 4–5 = 1

Statistical analyses

SPSS version 28 was used to analyze the data. Descriptive, Pearson chi-square and binary logistic regression analyses were carried out. The frequency distributions and percentages utilized to illustrate the categories’ distributions were descriptive. Second, the correlation between bullying victimization (the outcome variable) and the explanatory factors was analyzed using the Pearson chi-square test. We used the complex sampling command on SPSS to account for weighting and complex sampling design. All variables were included in the logistic regression, but only those with a significant connection (p 0.05) were used. The regression analysis findings were shown as odds ratios (aOR) with 95% confidence intervals (CIs). The p-value needed to be less than 5% to be statistically significant. We assess multicollinearity among independent variables using the variance inflation factor. Listwise deletion was used to address missing data.

Ethics statement

We got permission to utilise the data from the global school-based health survey programme. Since we analyzed a secondary dataset in which the participants’ personal information had been removed, we didn’t need to get formal ethical permission to perform this research. However, prior to conducting the surveys, ethical permission was acquired from the Ministry of Health and Sanitation in Sierra Leone.

Results

A total of 2,798 in-school adolescents in Sierra Leone was analyzed in the present study. As seen in (Fig 1), a significant percentage of Sierra Leonean adolescents have been bullied while attending school. The percentage of Sierra Leonean adolescents who had been bullied while attending school was 48.7%.

Fig 1. Prevalence of bullying victimisation among adolescents in Sierra Leone.

Fig 1

Bullying victimization among Sierra Leonean adolescents in school is shown in (Table 2), along with a bivariate analysis. The percentage of Sierra Leonean adolescents bullied while attending school was 48.7%. Victimization by bullies varied greatly by factors such as loneliness, attempts at suicide, substance abuse, and school absences. Significant differences across variables all had p-values of less than 0.05. Males accounted for the largest proportion of bullying victims (53.1%), lonely school-aged children (23%), and those who had attempted suicide (24.5%). Adolescents who regularly partake in the usage of both alcohol (19.2%) and cannabis (6.3%) are disproportionately likely to be bullied while at school. Also, students who skipped class were likelier to become bully victims than those who stayed in class (41.1%). The variables that did not show statistically significant associations with bullying victimization include age, sex, grade, anxiety, suicidal ideation, suicidal plan, close friends, peer support, and parental support, with p-values greater than 0.05.

Table 2. Bivariate analysis of bullying victimization across the background characteristics in Sierra Leone.

Characteristics Variables Bullied
X2, p-value
Yes n (%) No n (%)
Age ≤14yrs 489(36.4) 484(34.9) 0.63, p = 0.583
≥15years 859(63.6) 948(65.1)
Sex Male 633(53.1) 625(50.3) 2.20, p = 0 .129
Female 691(46.9) 793(49.7)
Grade JSS 902(72.9) 873(68.6) 6.19, p = 0 .338
SSS 446(27.1) 554(31.4)
Alcohol use Yes 265(19.2) 128(8.2) 68.21, p<0.001
No 978(80.8) 1246(98.1)
Cannabis use Yes 103(6.3) 35(2.5) 24.06, p = 0.002
No 1185(93.7) 1361(97.5)
Loneliness Less Lonely 1008(77.0) 1194(83.9) 21.25,p = 0 .020
Lonelier 328(23.0) 238(16.1)
Anxiety Less or no anxiety 1058(79.9) 1206(83.0) 4.54, p = 0.256
Anxiety 292(20.1) 228(17.0)
Suicidal Ideation Yes 222(16.6) 172(11.9) 12.62, P = 0.213
No 1075(83.4) 1225(88.1)
Suicidal plan Yes 229(16.2) 224(15.7) 0 .16, P = 0.862
No 1084(83.8) 1198(84.3)
Suicidal attempt Yes 335(24.5) 206(14.1) 47.76, p<0.001
No 999(75.5) 1220(85.9)
Close friends No close friends 130(9.9) 119(8.6) 1.26, p = 0.452
Close friends 1192(90.1) 1290(91.4)
School truancy Yes 555(41.1) 437(29.2) 42.93, p<0.001
No 786(58.9) 991(70.8)
Peer support Yes 393(28.2) 461(31.0) 2.69, p = 0.160
No 944(71.8) 961(69.0)
Parental Support Yes 936(75.1) 1077(78.4) 4.05, p = 0.216
No 347(24.9) 308(21.6)

The results of the multivariate logistic regression are shown in (Table 3). Adolescents who drank alcohol [aOR = 2.48, 95% CI = 1.50–4.10] were more likely to be bullied. Furthermore, teenagers who reported feelings of loneliness [aOR = 1.51, 95% CI = 1.07–2.14] were more likely to report being bullied than their less lonely peers. Adolescents who had already attempted suicide [aOR = 1.72, 95% CI = 1.03–2.87] were also more vulnerable to being bullied. Similarly, school truancy [aOR = 1.53, 95% CI = 1.24–1.88] among teenagers was associated with an increased risk of being bullied. The variables that did not show statistically significant associations with bullying victimization include age, sex, grade, cannabis use, anxiety, suicidal ideation, suicidal plan, close friends, peer support, and parental support.

Table 3. Multivariable regression analysis of predictors of bullying victimization among in-school adolescents in Sierra Leone.

Characteristics Variables aOR (95%CI)
Age ≤14yrs 1
>15years 0.89(0.65–1.22)
Sex Male 1.09(0.89–1.34)
Female 1
Grade JSS 1
SSS 0.73(0.42–1.26)
Alcohol use Yes 2.48(1.50–4.10)
No 1
Cannabis use Yes 1.16(0.53–2.54)
No 1
Loneliness Less Lonely 1
Lonelier 1.51(1.07–2.14)
Anxiety Less or no anxiety 1
Anxiety 1.00(0.69–1.46)
Suicidal Ideation Yes 1.11(0.67–1.83)
No 1
Suicidal plan Yes 0.77(0.45–1.32)
No 1
Suicidal attempt Yes 1.72(1.03–2.87)
No 1
Close friends No close friends 1
Close friends 0.95(0.60–1.52)
School truancy Yes 1.53(1.24–1.88) ⁎⁎
No 1
Peer support Yes 1
No 1.07(0.84–1.36)
Parental Support Yes 1
No 1.07(0.78–1.50)

Discussion

School-aged adolescents in Sierra Leone were found to have a prevalence of 48.7% of having been bullied on one or more days over the preceding 30 days, with a prevalence of 53.1% among boys and a prevalence of 46.9% among girls. Research on bullying in eight African countries [11] found rates that were higher than those found in this study, ranging from 25% in Tanzania to 63% in Zambia. In comparison, research on bullying in nine developing countries [12] found lower rates, with 42% of males and 39% of females reporting being bullied (at least once in the preceding 30 days). Differences in survey years, sample sizes, and contextual factors such as differences in schools, neighbourhoods, and cultures may all explain these discrepancies [13].

In line with the findings of earlier research [11,1416], this one indicated that boys were more likely to have been bullied than girls.

Bullying was more common among those who used drugs like cannabis and alcohol. According to a growing body of national and international research, adolescents who are bullied are at increased risk for drug usage and misuse [17]. Previous research [18,19] has shown that teenage drug usage increases the likelihood of being bullied as a victim. Although several researchers have shown that substance addiction increases a teen’s risk of being bullied [18,20], most of these investigations have focused on cigarettes. As a result, this study’s discovery that cannabis and alcohol usage raise the risk of being bullied lays the stage for future research aiming to replicate this study.

Researchers have shown a strong correlation between bullying victimization and subsequent suicide attempts [21,22]. We found that students who had tried suicide were more likely to be bullied at school, confirming these previous results. This result exemplifies the fact that not only can suicidal attempts predict bullying victimization, but victimization by bullies may also increase the risk of suicide attempts. Suicide attempts are more common among bully victims because of the sentiments of isolation and rejection that they experience, as stated in Opperman et al [23]. Suicide thoughts and attempted suicide are further exacerbated by poor self-esteem [24] and impaired self-worth [25]. Our results show that contrary to what has been found in the existing research, the risk of a teenager experiencing bullying at school may be predicted by whether or not they had attempted suicide.

The likelihood of being bullied is higher for those who often feel alone. This conclusion is congruent with the findings from Dembo and Gulledge [26], which showed that teenage victims of bullying were more prone to experience despair and loneliness. Because adolescence is a time of change and growth, it is natural for teenagers to seek community and friendship. When this isn’t the case, teenagers instead experience isolation, which make them more vulnerable to many forms of bullying [27].

In addition, this research found no association between being closely supervised by parents and having close friends [16,28]. The research found that school truancy is associated with a higher risk of being bullied. This can be addressed with Check and Connect as a school-based intervention program that encourages adolescents to attend class on a consistent basis and addresses issues including absenteeism and a lack of parental or guardian connection [29,30]. In the checking phase, we look for warning signals, such as missing school, that might indicate a problem. The connecting part of the concept uses a personalized mentor/monitor setup to establish a lasting bond with the student, their loved ones, and the school community [30].

Policy and practice implication

In order to reflect the experiences of each demographic subgroup more accurately, anti-bullying initiatives in schools should focus on the unique challenges that students face at each grade level. Other school-based involvement should include the fact that many teenagers, particularly boys, experience physical forms of bullying victimization e.g., physical fights, are assaulted, display signs of loneliness, and may try suicide. School administrators and policymakers should work together to improve school environment by reviving and developing new anti-bullying programs and improving the effectiveness of current ones.

Study limitations

The research conducted in Sierra Leone in 2017 employed a cross-sectional study design, which limits our capacity to establish causal relationships between the dependent and explanatory variables. Additionally, it is crucial to acknowledge that the scope of our findings is restricted to teenagers who are enrolled in schools within Sierra Leone. Future study should place a higher emphasis on investigating the experiences and behaviour exhibited by adolescents in both educational and non-educational environments. The presence of recall bias in the data is a potential concern as it is influenced by the dependence on self-reported responses.

Conclusions

Our study reported an alarmingly high levels of suicidal attempt among adolescents in Sierra Leone. This study also lends credence to the idea that bullying is a widespread problem among Sierra Leonean school-aged youth. Sierra Leonean school-going adolescents who are alcohol users, were lonely, had history of suicide attempt and truancy were more likely to be bullied. In light of the aforementioned risk factors of bullying in schools, policymakers and school administrators in Sierra Leone need to develop and execute anti-bullying policies and initiatives that target the underlying causes of bullying among teenagers. They should also increase awareness on suicide in Sierra Leone. This can be done through public campaigns, school campaign and community outreach.

Supporting information

S1 Checklist. STROBE statement—checklist of items that should be included in reports of observational studies.

(DOCX)

Acknowledgments

The authors would like to express their appreciation to the World Health Organization for providing them with the data used in this study. Participants in the 2017 GSHS in Sierra Leone are also thanked, as are the country’s Education and Health Ministries.

Data Availability

The dataset informing the findings of this study is publicly available. It can be freely accessed via the WHO NCD Microdata Repository https://extranet.who.int/ncdsmicrodata/index.php/catalog/GSHS.

Funding Statement

The authors received no specific funding for this work.

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PLOS Glob Public Health. doi: 10.1371/journal.pgph.0002498.r001

Decision Letter 0

Suvarna Jyothi Kantipudi

12 Sep 2023

PGPH-D-23-01085

Bullying Victimization among in-School Adolescents in Sierra Leone: Analysis of the 2017 Sierra Leone Global School-Based Health Survey.

PLOS Global Public Health

Dear Augustus Osborne

Thank you for submitting your manuscript to PLOS Global Public Health. After careful consideration, we feel that it has merit but does not fully meet PLOS Global Public Health’s publication criteria as it currently stands. Therefore, we invite you to submit a revised version of the manuscript that addresses the points raised during the review process.

Please submit your revised manuscript by 25 th September 2023. If you will need more time than this to complete your revisions, please reply to this message or contact the journal office at globalpubhealth@plos.org. When you're ready to submit your revision, log on to https://www.editorialmanager.com/pgph/ and select the 'Submissions Needing Revision' folder to locate your manuscript file.

Please include the following items when submitting your revised manuscript:

  • A rebuttal letter that responds to each point raised by the reviewer(s). You should upload this letter as a separate file labeled 'Response to Reviewers'.

  • A marked-up copy of your manuscript that highlights changes made to the original version. You should upload this as a separate file labeled 'Revised Manuscript with Track Changes'.

  • An unmarked version of your revised paper without tracked changes. You should upload this as a separate file labeled 'Manuscript'.

Guidelines for resubmitting your figure files are available below the reviewer comments at the end of this letter.

We look forward to receiving your revised manuscript.

Kind regards,

Suvarna Jyothi Kantipudi, MBBS,DPM,MD

Academic Editor

PLOS Global Public Health

Journal Requirements:

1. Please provide separate figure files in .tif or .eps format only and remove any figures embedded in your manuscript file. Please also ensure all files are under our size limit of 10MB.

For more information about figure files please see our guidelines:

https://journals.plos.org/globalpublichealth/s/figures 

https://journals.plos.org/globalpublichealth/s/figures#loc-file-requirement

Reviewer 1:

The authors may consider reviewing the language of the article. At certain places the sentence structuring can be better to derive proper meaning.

2. The Ethics review for secondary data analysis has been skipped. a waiver should have been obtained from Institutional ethics committee.

3. In the first half of the paper there is inadequate clarity on temporality - thus it seems to suggest that the potential effects of bullying are rather the risk factors / predisposing factors for bullying - e.g. Alcohol use. This needs correction in language and sentence framing.

4. At many places only those factors which were statistically significant at 5% alpha error have been reported creating a kind of reporting bias. e.g. lack of association with suicidal ideation but presence of statistically significant association with suicidal attempt needs reporting and explanation, including limitation.

5. Very high levels of suicidal attempt have been reported. However, the same has not received much attention in conclusion and recommendation to authorities.

6. Figure needs proper labelling and is creating confusion with putting frequency and percentage in a single figure. consider revising.

The article needs thorough revising based on the recommendations above.

Reviewer 2:

Introduction:

The introductory lines " Bullying victimization among in-school adolescents is a serious public health issue that has

gained increasing attention in recent years." It is better to cite sources which provide data on bullying among adolescents rather than research articles.

Description of school health services addressing adolescent health in Sierra Leone region has to be mentioned in the introductory section in order to provide overview.

Methodology:

In the explanatory variable, a detailed description of GSHS dataset has to be provided.

Results:

Results section to provide data on total number of adolescents included in the analysis.

Discussion:

In the limitation section, the authors commented on various limitations, however these were not potrayed in methodology section. Hence, sampling strategy has to be revised and provide detailed description rather than few lines

[Note: HTML markup is below. Please do not edit.]

Reviewers' comments:

Reviewer's Responses to Questions

Comments to the Author

1. Does this manuscript meet PLOS Global Public Health’s publication criteria? Is the manuscript technically sound, and do the data support the conclusions? The manuscript must describe methodologically and ethically rigorous research with conclusions that are appropriately drawn based on the data presented.

Reviewer #1: Yes

Reviewer #2: No

Reviewer #3: Yes

**********

2. Has the statistical analysis been performed appropriately and rigorously?

Reviewer #1: Yes

Reviewer #2: No

Reviewer #3: Yes

**********

3. Have the authors made all data underlying the findings in their manuscript fully available (please refer to the Data Availability Statement at the start of the manuscript PDF file)?

The PLOS Data policy requires authors to make all data underlying the findings described in their manuscript fully available without restriction, with rare exception. The data should be provided as part of the manuscript or its supporting information, or deposited to a public repository. For example, in addition to summary statistics, the data points behind means, medians and variance measures should be available. If there are restrictions on publicly sharing data—e.g. participant privacy or use of data from a third party—those must be specified.

Reviewer #1: Yes

Reviewer #2: No

Reviewer #3: Yes

**********

4. Is the manuscript presented in an intelligible fashion and written in standard English?

PLOS Global Public Health does not copyedit accepted manuscripts, so the language in submitted articles must be clear, correct, and unambiguous. Any typographical or grammatical errors should be corrected at revision, so please note any specific errors here.

Reviewer #1: Yes

Reviewer #2: No

Reviewer #3: Yes

**********

5. Review Comments to the Author

Please use the space provided to explain your answers to the questions above. You may also include additional comments for the author, including concerns about dual publication, research ethics, or publication ethics. (Please upload your review as an attachment if it exceeds 20,000 characters)

Reviewer #1: I would like to thank the editor for providing me the opportunity to review the current article.

Specific comments to authors:

Introduction:

The introductory lines " Bullying victimization among in-school adolescents is a serious public health issue that has

gained increasing attention in recent years." It is better to cite sources which provide data on bullying among adolescents rather than research articles.

Description of school health services addressing adolescent health in Sierra Leone region has to be mentioned in the introductory section in order to provide overview.

Methodology:

In the explanatory variable, a detailed description of GSHS dataset has to be provided.

Results:

Results section to provide data on total number of adolescents included in the analysis.

Discussion:

In the limitation section, the authors commented on various limitations, however these were not potrayed in methodology section. Hence, sampling strategy has to be revised and provide detailed description rather than few lines

Reviewer #2: Introduction:

This portion fails to justify the rationale of the current study i.e. why this study was carried out and what significance it could make to the existing body of knowledge. More baseline work is required e.g. how Pakistani pregnant women would differ from women belonging to other parts of the world in developing pregnancy related anxiety. Cultural factors of infertility and the expectation of a male child may also be discussed.

Method:

More detail on the CBT practitioners and their expertise is required.

Results:

Either hypotheses or Research Questions or Objectives should be formulated prior to calculating the results. Proper statistical procedures must be performed afterwards.

Table should be in align with standard formats e.g. APA.

Reviewer #3: The study looking at prevalence and associated factors of bullying victimisation in Sierra Leone looks at the database available from 2017 and performs analysis to find out significant factors.

The study looks at an important aspect that affects adolescent health especially mental health.

The study as a secondary analysis of a quantitative survey which is nearly six years old has its imitations when deriving conclusions from the same.

The article has been well structured and written and certain edits will make it adequately rigorous for publishing in PLOS GPH.

1. The authors may consider reviewing the language of the article. At certain places the sentence structuring can be better to derive proper meaning.

2. The Ethics review for secondary data analysis has been skipped. a waiver should have been obtained from Institutional ethics committee.

3. In the first half of the paper there is inadequate clarity on temporality - thus it seems to suggest that the potential effects of bullying are rather the risk factors / predisposing factors for bullying - e.g. Alcohol use. This needs correction in language and sentence framing.

4. At many places only those factors which were statistically significant at 5% alpha error have been reported creating a kind of reporting bias. e.g. lack of association with suicidal ideation but presence of statistically significant association with suicidal attempt needs reporting and explanation, including limitation.

5. Very high levels of suicidal attempt have been reported. However, the same has not received much attention in conclusion and recommendation to authorities.

6. Figure needs proper labelling and is creating confusion with putting frequency and percentage in a single figure. consider revising.

The article needs thorough revising based on the recommendations above.

**********

6. 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.

Do you want your identity to be public for this peer review? If you choose “no”, your identity will remain anonymous but your review may still be made public.

For information about this choice, including consent withdrawal, please see our Privacy Policy.

Reviewer #1: No

Reviewer #2: No

Reviewer #3: No

**********

[NOTE: If reviewer comments were submitted as an attachment file, they will be attached to this email and accessible via the submission site. Please log into your account, locate the manuscript record, and check for the action link "View Attachments". If this link does not appear, there are no attachment 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. Registration is free. 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 PLOS at figures@plos.org. Please note that Supporting Information files do not need this step.

PLOS Glob Public Health. doi: 10.1371/journal.pgph.0002498.r003

Decision Letter 1

Lola Kola

29 Nov 2023

Bullying Victimization among in-School Adolescents in Sierra Leone: Analysis of the 2017 Sierra Leone Global School-Based Health Survey.

PGPH-D-23-01085R1

Dear Augustus Osborne,

We are pleased to inform you that your manuscript 'Bullying Victimization among in-School Adolescents in Sierra Leone: Analysis of the 2017 Sierra Leone Global School-Based Health Survey.' has been provisionally accepted for publication in PLOS Global Public Health.

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.

If your institution or institutions have a press office, please notify them about your upcoming paper to help maximize its impact. If they'll be preparing press materials, please inform our press team as soon as possible -- no later than 48 hours after receiving the formal acceptance. Your manuscript will remain under strict press embargo until 2 pm Eastern Time on the date of publication. For more information, please contact globalpubhealth@plos.org.

Thank you again for supporting Open Access publishing; we are looking forward to publishing your work in PLOS Global Public Health.

Best regards,

Lola Kola, PhD

Academic Editor

PLOS Global Public Health

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

The total sample should be included in the abstract and mentioned in the methods too.

Reviewer Comments (if any, and for reference):

Reviewer's Responses to Questions

Comments to the Author

1. If the authors have adequately addressed your comments raised in a previous round of review and you feel that this manuscript is now acceptable for publication, you may indicate that here to bypass the “Comments to the Author” section, enter your conflict of interest statement in the “Confidential to Editor” section, and submit your "Accept" recommendation.

Reviewer #1: All comments have been addressed

**********

2. Does this manuscript meet PLOS Global Public Health’s publication criteria? Is the manuscript technically sound, and do the data support the conclusions? The manuscript must describe methodologically and ethically rigorous research with conclusions that are appropriately drawn based on the data presented.

Reviewer #1: Yes

**********

3. Has the statistical analysis been performed appropriately and rigorously?

Reviewer #1: Yes

**********

4. Have the authors made all data underlying the findings in their manuscript fully available (please refer to the Data Availability Statement at the start of the manuscript PDF file)?

The PLOS Data policy requires authors to make all data underlying the findings described in their manuscript fully available without restriction, with rare exception. The data should be provided as part of the manuscript or its supporting information, or deposited to a public repository. For example, in addition to summary statistics, the data points behind means, medians and variance measures should be available. If there are restrictions on publicly sharing data—e.g. participant privacy or use of data from a third party—those must be specified.

Reviewer #1: Yes

**********

5. Is the manuscript presented in an intelligible fashion and written in standard English?

PLOS Global Public Health does not copyedit accepted manuscripts, so the language in submitted articles must be clear, correct, and unambiguous. Any typographical or grammatical errors should be corrected at revision, so please note any specific errors here.

Reviewer #1: Yes

**********

6. Review Comments to the Author

Please use the space provided to explain your answers to the questions above. You may also include additional comments for the author, including concerns about dual publication, research ethics, or publication ethics. (Please upload your review as an attachment if it exceeds 20,000 characters)

Reviewer #1: (No Response)

**********

7. 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.

Do you want your identity to be public for this peer review? If you choose “no”, your identity will remain anonymous but your review may still be made public.

For information about this choice, including consent withdrawal, please see our Privacy Policy.

Reviewer #1: No

**********

Associated Data

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

    Supplementary Materials

    S1 Checklist. STROBE statement—checklist of items that should be included in reports of observational studies.

    (DOCX)

    Attachment

    Submitted filename: Response to Reviewers.docx

    Data Availability Statement

    The dataset informing the findings of this study is publicly available. It can be freely accessed via the WHO NCD Microdata Repository https://extranet.who.int/ncdsmicrodata/index.php/catalog/GSHS.


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