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Table 3 Quality assessment by anthropometric and morbidity outcomes

From: Effectiveness of Micronutrient Powders (MNP) in women and children

Stunting: Moderate outcome specific quality of evidence
Two study (three data sets) RCT No significant heterogeneity, fixed effect model used None of the study suggests benefit All studies from the developing countries   810 838 RR: 0.92 [0.81, 1.04]
Wasting: Moderate outcome specific quality of evidence
Two study (three data sets) RCT No significant heterogeneity, fixed effect model used None of the study suggests benefit All studies from the developing countries   263 234 RR: 1.13 [0.91, 1.40]
Underweight: Moderate outcome specific quality of evidence
Three studies (four data sets) RCT No significant heterogeneity, fixed effect model used None of the studies suggest significant benefit All the studies from developing countries All studies included more than 3 micronutrients. The studies ranged in duration from 4-12 months. 671 679 RR: 0.96 [0.83, 1.10]
HAZ: Moderate outcome specific quality of evidence
Three RCT No significant heterogeneity, fixed effect model used None of the studies suggest significant benefit All studies are from Africa All studies included more than 3 micronutrients. The studies ranged in duration from 6-12 months. 271 253 SMD: 0.04 [-0.13, 0.22]
WAZ: Moderate outcome specific quality of evidence
Three RCT No significant heterogeneity, fixed effect model used None of the studies suggest significant benefit All studies from Africa All studies included more than 3 micronutrients. The studies ranged in duration from 6-12 months. 271 253 SMD: 0.05 [-0.12, 0.23]
WHZ: Moderate outcome specific quality of evidence
Three RCT No significant heterogeneity, fixed effect model used None of the studies suggest significant benefit All studies from Africa All studies included more than 3 micronutrients. The studies ranged in duration from 6-12 months. 271 253 SMD: 0.04 [-0.13, 0.21]
Diarrhea: Moderate outcome specific quality of evidence
Four studies (five data sets) RCT No significant heterogeneity, fixed effect model used Direction of evidence is consistent across studies All the studies from developing countries Number of micronutrients ranged from 5-15. Duration varied from 2-12 months. One of the studies targeted children in school. 1692 1679 RR: 1.04 [1.01, 1.06]
Recurrent Diarrhea: Moderate outcome specific quality of evidence
One RCT Only one study   Study was conducted in Cambodia Study was conducted over a 12 month period 1 0 RR: 2.86 [0.12, 69.00]
URI: Moderate outcome specific quality of evidence
Two RCT No significant heterogeneity, fixed effect model used None of the studies suggest benefit All the studies from developing countries Number of micronutrients ranged from 5-14. Duration varied from 8-12 months. One of the studies targeted children in school. 30 26 RR: 1.17 [0.71, 1.92]
Fever: Moderate outcome specific quality of evidence
One RCT Only one study   Study was conducted in India   41 41 RR: 1.03 [0.70, 1.51]