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Table 1 Quality assessment of trials on nutrition education

From: Impact of education and provision of complementary feeding on growth and morbidity in children less than 2 years of age in developing countries: a systematic review

  Quality Assessment Summary of Findings
  Directness No of events  
No of studies Design Limitations Consistency Generalizability to population of interest Generalizability to intervention of interest Intervention Control RR or SMD (95% CI)
Height gain: Moderate outcome-specific quality
6 studies
Food secure[13, 15, 19, 21]
Food insecure[16, 17]
RCT + non RCT Random effect model was used because of heterogeneity 3 studies suggest benefit    1410 1327 SMD 0.35 (0.08, 0.62)
Food secure population
SMD 0.00 (-0.15, 0.16)
Food insecure population
Height for age: Moderate outcome-specific quality
5 studies
Food secure[14, 15, 19, 21]
Food insecure[18]
RCT + non RCT Random effect model was used because of heterogeneity 2 studies suggest benefit    1007 974 SMD 0.22 (0.01, 0.43)
Food secure population
SMD 0.25 (0.09, 0.42)
Food insecure population
Stunting: Moderate outcome-specific quality
Food secure[14, 15, 19, 21]
Food insecure[18]
RCT + non RCT Random effect model was used because of heterogeneity 1 study suggest benefit    991 949 RR 0.70 (0.49,1.01)
Food secure population
RR 0.68 (0.60,0.76)
Food insecure population
Weight gain: Moderate outcome-specific quality
7 studies
Food secure[13, 15, 19, 21]
Food insecure[12, 16, 17]
RCT + non RCT Random effect model was used because of heterogeneity 4 studies suggest benefit    1583 397 SMD 0.40 (0.02, 0.78)
Food secure population
SMD 0.06 (-0.13, 0.25)
Food insecure population
Weight-for-age: Moderate outcome-specific quality
6 studies
Food secure[14, 15, 19, 21]
Food insecure[12, 18]
RCT + non RCT Random effect model was used because of heterogeneity 2 studies suggest benefit    1260 1150 SMD 0.12 (-0.02, 0.26)
Food secure population
SMD 0.26 (0.12, 0.41)
Food insecure population
Underweight: Moderate outcome-specific quality
1 study[16] RCT Fixed effects   Only one study and to food secure population   435 394 RR 1.03 (0.90, 1.18)
Food secure population