Relationship between preterm birth of infant and medication during pregnancy in women of childbearing age in shaanxi

Objective To understand the relationship between medication during pregnancy and single live preterm birth of infant in women of childbearing age in Shaanxi province. Methods A cross-sectional design was used in this study and stratified multistage random sampling method was used. A questionnaire survey was conducted in the childbearing-aged women selected through multi stage stratified random sampling in Shaanxi during 2010 to 2013. Qualitative datum was described by percentage and measurement datum was described by mean ± standard deviation. Logistic regression analysis was done to evaluate the relationship between medication during pregnancy and preterm birth of infant. Results The overall incidence rate of premature birth was 2.7% in Shaanxi. Among the 28 841 mothers participating in this study, the proportion of medication use at any time during pregnancy was 15.8%, and the most commonly used drug was cold medicine (5.9%). After adjusting all confounding factors, the multi variable logistic regression analysis results showed that taking hormone medicine (OK= 2.23, 95% CI: 1.19-4.18), antihypertensive medicine (Otf=7.74, 95% CI: 4.28-13.95) and other medicines (OR=2.15, 95%CI: 1.60-2.89) during early pregnancy were the risk factors for preterm delivery, the risk was 2.23 times, 7.74 times and 2.15 times higher compared with those taking no these medicines. Conclusion Using hormone medicine, antihypertensive medicine and other medicines during pregnancy increased the risk for preterm delivery in women of childbearing age in Shaanxi.