Roy 2007.
| Study characteristics | ||
| Methods | Cluster‐RCT | |
| Participants | Setting: community nutrition centres where regular Bangladesh Integrated Nutrition Project (BNIP) activities were available in 4 geographic regions of Bangladesh: northeastern Nikli in Dhaka Division, central Sherpur in Rajshahi Division, Southeastern Chakaria in Chittagong Division, and southwestern Dacope in Khulna Division Between June 2001 and July 2002 Inclusion criteria: children aged 6 to 9 months who were well nourished or mildly malnourished (weight for age above 75% of the median National Centre for Health Statistics standard) Participants were selected from 121 randomly selected community nutrition centres. 611 infants were enrolled, of whom 306 (152 (49.8%) males) infants were in the nutritional counselling group and 305 (174 (57.1%) males) in the control group |
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| Interventions | Intervention group: nutrition education via focus groups and behavioural change and communication materials such as flip charts The intervention continued for 6 months, with educational messages once a week for the first 3 months and then once every 2 weeks for the next 3 months Control: regular BINP services |
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| Outcomes | WAZ at 12 and 18 months HAZ (LAZ) at 12 and 18 months WHZ (WLZ) at 12 and 18 months |
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| Identification | ||
| Notes | ||
| Risk of bias | ||
| Bias | Authors' judgement | Support for judgement |
| Random sequence generation (selection bias) | Unclear risk | No information was provided |
| Allocation concealment (selection bias) | Unclear risk | No information was provided |
| Blinding of participants and personnel (performance bias) All outcomes | Low risk | The intervention is not amenable to blinding of participants nor personnel delivering the intervention; however, outcomes included in this review are unlikely to be affected by lack of blinding Quote: "Families were not told whether they were in the intervention or control group" |
| Blinding of outcome assessment (detection bias) All outcomes | Unclear risk | No information was provided |
| Incomplete outcome data (attrition bias) All outcomes | Low risk | Follow‐up at 18 months of age revealed 290/306 (94.7%) in the intervention group and 282/305 (92.5%) in the control group |
| Selective reporting (reporting bias) | Low risk | Study protocol is not available. However, all proposed outcomes have been reported |
| Other bias | Low risk | |