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| Analysis of the incidence and the risk factors of premature delivery of 628 pregnant women |
| Hainan Western Central Hospital, Danzhou, Hainan Province, 571700 |
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Abstract To explore the incidence and the high risk factors of premature delivery of pregnant women. Methods: The clinical data of 628 pregnant women who delivered in hospital were analyzed retrospectively. According to the gestational weeks of delivery, these women were divided into group A (women with premature delivery)and group B (women with full-term delivery). The clinical data of the women were compared between the two groups. The high-risk factors of premature delivery of the women were analyzed by logistic regression. Results: The incidence of preterm delivery of 628 pregnant women was 7.0% (44/628), which included 5 cases (11.4%)with 28-31+6 gestational weeks of preterm delivery, 9 cases (20.5%)with 32-33+6 gestational weeks of preterm delivery, and 30 cases (68.2%)with 34-36+6 gestational weeks of preterm delivery. There were no significant differences in the education level, the incidence of folic acid taking before pregnancy, the parity, the preterm delivery history, and the incidences of gestational diabetes mellitus, placental abruption, premature rupture of membranes, and oligohydramnios of the women between the two groups (P＞0.05). There were significant differences in the age, the values of pre-pregnancy body mass index, the prenatal examination situation, the rate of gestational hypertension, the induced abortion history, and the incidences of placenta previa, intrahepatic cholestasis of pregnancy (ICP), fetal distress, and fetal growth restriction of the women between the two groups (all P＜0.05). Multivariate analysis showed that the maternal age, the fetal distress, ICP, the gestational hypertension, and the placenta previa of the women were all the risk factors of their preterm delivery (all P＜0.05). Conclusion: The pregnant women with advanced age, fetal distress, ICP, gestational hypertension, or placenta previa all will increase the risk of their preterm birth. So in clinic, the pregnant women with risk of preterm birth should be paid attention to.
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