Intermittent iron supplementation (alone or with any other micronutrients) vs no supplementation or placebo: Iron deficiency (as defined by trialists)
Intermittent iron supplementation (alone or with any other… showed no clear difference in iron deficiency (as defined by trialists by using indicators of iron… compared with no supplementation or placebo (low certainty).
What each review found
Current versions only| Finding | Effect | Studies | GRADE certainty |
|---|---|---|---|
Intermittent iron supplementation (alone or with any other micronutrients) vs no supplementation or placebo Iron deficiency (as defined by trialists by using indicators of iron status such as ferritin or transferrin) · adolescent and adult menstruating women Intermittent iron supplementation (alone or with any other… showed no clear difference in iron deficiency (as defined by trialists by using indicators of iron… compared with no supplementation or placebo (low certainty). Intermittent iron supplementation for reducing anaemia and its associated impairments in adolescent and… (2019) · Cochrane Headline outcomes only | RR 0.5 [0.24, 1.04] | 3 studies · 624 participants | Low |
Findings are shown side by side, never pooled across reviews.
The reviews
| Review | Searched up to | Included studies | AMSTAR 2 |
|---|---|---|---|
| Intermittent iron supplementation for reducing anaemia and its associated impairments in adolescent and adult menstruating women 2019 · Cochrane Headline outcomes only | Not reported | list not extracted yet | Not assessed |
Studies behind the findings
None of these reviews ties its included studies to this outcome in the data here. Cochrane reviews and reviews with headline outcomes only do not list their studies yet.
How reviews are matched to this question
Reviews word the same question differently. Four decision models (TypeSafe's Jev, Liquid AI's d1-ultra, SubQ Snap and Baseten's Elephant) judged each wording of the population, intervention, comparator and outcome against the others; two wordings count as the same when at least three of them agree and none clearly disagrees, and findings count as this question only when all four elements match. Timing, setting and subgroup never split a question: they are shown on each finding.