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Analysis of the relationship between intrauterine device used of women and their risk factors of postpartum hemorrhage after the second child birth by cesarean section |
1.Maternal and Child Health Hospital of Lianyungang City, Jiangsu Province, 222000; 2. Jiangsu Province Health Development Research Center, National Health and Family Planning Commission Contraceptives Adverse Reaction Surveillance Center, Nanjing |
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Abstract To analyze the relationship between intrauterine device (IUD) used of women and their risk factors of postpartum hemorrhage after the second child birth by cesarean section. Methods:A case-control study was conducted to analyze the postpartum hemorrhage situation of 4,994 parturients with the second child birth by cesarean section from January 2017 to December 2018 and who met the inclusion criteria in the maternal health care system of Lianyungang area. Among them, 120 parturients with postpartum blood loss ≥1,000 ml were classified in case group, and according to 1: 2, 240 parturients with postpartum hemorrhage <1,000 ml were randomly selected in control group. The influence factors of postpartum hemorrhage were analyzed by logistic regression analysis. Results:Age (OR=7.228, 95%CI 3.420-15.274), history of abortion (OR=2.121, 95%CI 1.198-3.755), multiple pregnancy (OR=1.923, 95%CI 1.067-3.465), macrosomia (OR=6.558, 95%CI 3.608-11.92), and placenta previa (OR=4.300, 95%CI 1.572-11.757) were the independent influencing factors of postpartum hemorrhage, but IUD used was not the independent influencing factor of postpartum hemorrhage (OR=7.608, 95%CI 0.778-74.396). Conclusion:IUD used has no adverse influence on the postpartum hemorrhage of the women after cesarean section, so IUD is worth to use as the contraception for the women safely who plan to give birth the second child. Controlling the risk factors of the women can prevent their occurrence of postpartum hemorrhage after cesarean section.
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