Association of maternal prenatal phthalate exposure and genetic polymorphisms of metabolic enzyme genes with spontaneous preterm birth: a nested case-control study in China.

BMC Pregnancy Childbirth · 2025 · PMC11917035 · PMID 40097953

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an increasing trendno p-value reported

In China, the overall preterm birth rate has maintained an increasing trend, reaching 6.4% in 2018 compared to 5.9% in 2012 [ 2 ], and has ranked the fourth among all countries [ 1 ].

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