Thresholds of socio-economic and environmental conditions necessary to escape from childhood malnutrition: a natural experiment in rural Gambia.

The analysis of randomised trials including over 4600 children studied over 9–12 m intervention periods revealed no evidence of any beneficial effect on weight-for-age or weight-for-height and only a marginally significant impact on height-for-age of less than one tenth of a standard deviation (+ 0.08 Z-score, 95%CI 0.00–0.16).

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The highly significant gradient in HAZ and WAZ across SES groups is unsurprising and validates the relevance of the SES metrics.

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