Waber 1981.
| Methods | Study date: 1981. RCT. Different arms. A = control, A1 = maternal education only, B = fed from 6 months, B1 = fed + maternal education from 6 months, D = mothers fed from third trimester | |
| Participants | SES or context: Low‐ and middle‐income country: Southern slums in Bogata, Colombia Nutritional status: Half of children in family below 85% percentile for weight Age: 6 months ‐ 3 years Sex: Approximately equal in both groups Number: 433 |
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| Interventions | Intervention: Feeding: Enriched bread, dry skimmed milk, and cooking oil for entire family. Index child given dry skimmed milk, high protein vegetable mixture, and ferrous sulcate. Supplements delivered in store‐like atmosphere once a week Maternal education. Trained home visitors worked directly with the children and trained mothers to become more responsive Energy: 623 kcal per day. 30 g protein Duration: 32 months % DRI for energy: Not enough information % DRI for protein: Not enough information Control: Home‐feeding as usual, or education Provider: Not clear Supervised: Not clear. However, home visitors worked with children and educated mothers Compliance: Not mentioned |
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| Outcomes | Psychological: Griffiths Mental Development Scales and Einsten IQ test | |
| Notes | ||
| Risk of bias | ||
| Bias | Authors' judgement | Support for judgement |
| Random sequence generation (selection bias) | Unclear risk | Simply noted that study was randomised |
| Allocation concealment (selection bias) | Unclear risk | No detail |
| Baseline outcome measurements | Unclear risk | No significance given |
| Baseline characteristics | Unclear risk | Not applicable |
| Incomplete outcome data (attrition bias) All outcomes | Unclear risk | 433 started trial; 318 reported. Does not say who or why |
| Blinding of outcome assessment (detection bias) All outcomes | Unclear risk | Training mentioned, blinding not mentioned |
| Blinding of participants and personnel (performance bias) All outcomes | High risk | Blinding not possible for participants |
| Protection from contamination | Unclear risk | Not applicable |
| Selective reporting (reporting bias) | Unclear risk | No access to protocol |