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Associations between maternal syphilis infection during pregnancy and low birth weight and preterm birth: a
Mengting Sun1, Manjun Luo1, Tingting Wang1,2
1Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, No. 172 Tongzipo Road, Yuelu District, Changsha, 410013, Hunan, China.
Background:
In recent years, syphilis is still the most common sexually transmitted disease worldwide. Pregnant women infected with syphilis can transmit it to the fetus in utero through mother-to-child transmission, which can directly lead to adverse pregnancy outcomes. The aim of this study was to investigate the associations between maternal syphilis infection and low birth weight and preterm birth in offspring.
Methods:
Multinomial logistic regression model was used to analyze the associations between maternal syphilis infection and low birth weight and preterm birth, and to explore its stability through subgroup analysis.
Results:
A total of 34,074 subjects were included in the study. After adjusting for potential confounders, maternal syphilis infection during pregnancy was associated with a 2.60-fold (95% CI 1.83-3.69) increased risk of low birth weight and a 1.91-fold (95% CI 1.35-2.69) increased risk of preterm birth. Subgroup analysis showed that the association was stable.
Conclusion:
We found that maternal syphilis infection during pregnancy was significantly associated with an increased risk of low birth weight and preterm birth. The implementation of reasonable syphilis screening and standardized treatment and follow-up of pregnant syphilis may have important practical significance in reducing the low birth weight and preterm birth rate in offspring.
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