Patil 2014 IND.
Methods | Cluster RCT | |
Participants | Number: 3039 HHs (5209 children aged < 5 years) (after 15.3% LTFU) Inclusion criteria: HH with ≥ 1 child aged < 24 months at enrolment. For follow‐up, the HH had to have ≥ 1 child aged 21–45 months and were living in the village at the time of baseline. Mean age: intervention group 21.9 months; control group 22.1 months |
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Interventions | Intervention (40 villages): India Total Sanitation Campaign (subsidies and promotion of individual HH latrines) and Nirmal Vatika (additional subsidies) and support from WSP through TSSM project, which included creation of enabling environment + capacity building to implement CLTS‐based behaviour change methods. Control (40 villages): no intervention. |
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Outcomes | Toilet coverage, defecation behaviours (including daily open defecation by children (aged < 5 years), hygienic child faeces disposal) Diarrhoea: ≥ 3 loose or watery stools in 24 hours or a single stool with blood/mucous. 7‐day recall in questionnaire at baseline and at end of study. Highly credible gastrointestinal illness Acute lower respiratory illness Bruising/abrasions and itchy skin/scalp (negative control outcomes) Anthropometry (weight for age, height for age, weight for height, MUAC) Anaemia Water quality Child stool parasitology (including helminth present in stool,Ascaris lumbricoides present in stool) |
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Notes | Location: 80 rural villages in 2 neighbouring districts in Madhya Pradesh, India Length of study: 23 months (25 May 2009 to 25 April 2011) Publication status: journal |
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Risk of bias | ||
Bias | Authors' judgement | Support for judgement |
Random sequence generation (selection bias) | Low risk | Used public lottery to assign villages to arms. |
Allocation concealment (selection bias) | Low risk | Used public lottery to assign villages to arms. |
Blinding of participants and personnel (performance bias) All outcomes | High risk | No blinding of participants possible but outcomes were self‐reported so could have been affected by lack of blinding. |
Blinding of outcome assessment (detection bias) All outcomes | High risk | Quote: "Field interviewers were not informed of group assignment, but it was possible for them to identify intervention villages during interviews of Block officers or the village secretary." Comment: incomplete blinding. |
Incomplete outcome data (attrition bias) All outcomes | Low risk | Attrition was not differential by randomized group and no missing values for main outcomes. |
Selective reporting (reporting bias) | Low risk | Report on main outcomes. |
Other bias | Unclear risk | — |
Similarity of baseline outcome measurements | Unclear risk | NA |
Similarity of baseline characteristics | Unclear risk | NA |
Adequate allocation of intervention concealment during the study | Unclear risk | NA |
Adequate protection against contamination | Unclear risk | NA |
Confounders adequately adjusted for in analysis/design | Unclear risk | NA |
Recruitment bias | High risk | Follow‐up data which were the data used for analysis were measured in newly recruited HHs that belonged to either intervention or control arms. |
Baseline imbalance | Low risk | No major imbalance and the analysis adjusted for the 3 characteristics that had slight imbalance between groups. |
Loss of clusters | Low risk | No loss of clusters. |
Incorrect analysis | Low risk | Adjusted for clustering in the analyses. |