Table 2 Qualitative assessment of Trials for effect of zinc supplementation on linear growth
Quality Assessment | Summary of findings | ||||||
|---|---|---|---|---|---|---|---|
| 听 | 听 | 听 | 听 | Generalizability | Pooled Effect | Qualitative Assessment | |
No. of studies | Design | Limitations | Consistency | Generalizability to Population of Interest | Generalizability to intervention of Interest | Mean Difference ( 95 % CI) | High, moderate, low, very low) |
Effect of Zinc supplementation on linear growth: Zinc supplementation for a dose of 10 mg/day for a duration of 24 weeks | |||||||
RCT | In one study [49], dose was not exact 10 mg/day but was 12.5 mg/day. Supplementation in one study continued till 28 weeks [43]. | Heterogeneity 71 %. Random effect models used. | All the studies from developing countries | 10 mg zinc/day for 24 weeks | 0.37(0.12-0.62) cm | Moderate | |