A national study on maternal vomiting during pregnancy in Iran: prevalence, determinants, adverse birth outcomes, and the trend.

BMC Pregnancy Childbirth · 2024 · PMC11471031 · PMID 39395974

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a decreasing trendno p-value reported

After adjusting for other confounders, the prevalence of vomiting revealed a decreasing trend by body mass index (OR = 0.63, 95%CI: 0.53, 0.78, P-trend < 0.001).

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an increasing trendno p-value reported

Results The prevalence of vomiting during pregnancy was 9.7% (95% CI: 8.8, 10.7), with an increasing trend by birth cohort.

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