Association between micronutrient supplementation during pregnancy and preterm birth: evidence from a large-scale children survey and Mendelian randomization study.

Front Public Health · 2025 · PMC12101085 · PMID 40416681

Europe PMC DOI

hedged sentence

0.0610

closest p · 1.2× alpha

0.0610

boldest claim

The sentences

marginal significancep = 0.061so close (0.05 < p ≤ 0.1)

Folic acid and iron supplementation displayed considerable uncertainty in their associations with PTB (OR IVW = 13.14, 95% CI: 0.02–8,436.32 for folic acid; OR IVW = 2.13, 95% CI: 0.01–248.88 for iron), and multinutrients also showed no significant correlation, albeit with marginal significance (OR IVW = 0.01, 95% CI: 0.001–1.26, p = 0.061).

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