Overall characteristics and qualitative summary of included trials of zinc supplementation in pregnancy for select infant, child, and maternal outcomes.
mg, milligrams; g, grams; IUGR, intrauterine growth retardation; Fe, iron; HIV, human immunodeficiency virus; RR, relative risk; SGA, small for gestational age.
aStatistically significant results favouring the intervention are shown in dark gray, and those favouring the comparison group in dark hatches. Several obstetric outcomes as well as any outcomes originating from just one trial are not included.
bFor some trials the year the intervention occurred was estimated from the publication date.