Incidence of unintended pregnancy within 2 years after delivery and its influencing factors in China
Yang Caixia, Zhao Xuhong, Li Yuyan, Zhou Yanfei, Zhang Lin'ai, Yuan Dong, Xia Wei, Wang Jianmei, Song Jiandong, Lyu Wen, Luo Yongfeng, Jiang Lifang, Jiang Li, Huang Xiaochen, Hu Xiaoyu, Dong Xiaojing, Cheng Tongyin, Zhou Yuanzhong, Zhang Yan, Che Yan
Abstract
ObjectiveTo investigate the present situation of unintended pregnancy within two years postpartum and its influencing factors in China.
MethodsParticipants who delivered a live birth at 60 hospitals in 15 provinces in the eastern, central and western regions of China during July 2015 to June 2016 were interviewed by using structured questionnaire. Information on occurrence of unintended pregnancy within 2 years after delivery, postpartum contraceptive use, sexual resumption, breastfeeding, and women′s socio-demographic characteristics, and so on, were collected. Life-table analysis, cluster log-rank tests and a 2-level Cox regression model were used for data analysis.
ResultsA total of 18 045 postpartum women were investigated. The cumulative 1- and 2-year unintended pregnancy rates after delivery were 5.3% (95%CI: 4.5%－6.1%) and 13.1% (95%CI: 11.3%－14.8%), respectively. Cox regression model analysis showed that the risk of unintended pregnancy within 2 years postpartum were increased in younger women, ethnic minorities, women with abortion history, and those who had a vaginal delivery with short lactation time and late postpartum contraceptive initiation (all P<0.01). The risk of postpartum unintended pregnancy was not associated with geographic regions and hospitals where women gave a birth (allP>0.05).
ConclusionsIn China, the risk of unintended pregnancy within 2 years after delivery is relatively high. Service institutions and service providers should improve the quality of postpartum family planning services, promote the use of high effect contraceptive methods, and educate women to use a method at the time of their sexual resumption or even before.
Key words:
Postpartum period; Pregnancy, unplanned; Pregnancy rate; Risk factors
Contributor Information
Yang Caixia
Department of Obstetrics, Tianjin Baodi Hospital, Tianjin 301800, China
Zhao Xuhong
Shanghai Institute for Biomedical and Pharmaceutical Technologies, National Health Commission Key Laboratory of Reproduction Regulation, School of Public Health, Fudan University, Shanghai 200237, China
Li Yuyan
Shanghai Institute for Biomedical and Pharmaceutical Technologies, National Health Commission Key Laboratory of Reproduction Regulation, School of Public Health, Fudan University, Shanghai 200237, China
Zhou Yanfei
Center for Maternal Health Care, Changsha Hosptial for Maternal and Child Health Care, Changsha 410007, China
Zhang Lin'ai
Department of Family Planning, Women Health Center of Shanxi, Taiyuan 030013, China
Yuan Dong
Department of Obstetrics and Gynecology, Tianjin Hedong District Obstetrics and Gynecology Hospital, Tianjin 300042, China
Xia Wei
Family Planning Research Institute, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
Wang Jianmei
Department of Family Planning, The Second Hospital of Tianjin Medical University, Tianjin 300211, China
Song Jiandong
Department of Obstetrics and Gynecology, Affiliated Hospital of Inner Mongolia Medical University, Hohhot 010059, China
Lyu Wen
Department of Gynecology, Tongde Hospital of Zhejiang Province, Hangzhou 310012, China
Luo Yongfeng
Department of Reproductive Gynecology, Jilin Province Maternal and Child Health Hospital, Changchun 130051, China
Jiang Lifang
Research Center of Social Medicine, Henan Institute of Reproduction Health Science and Technology, Zhengzhou 450002, China
Jiang Li
Department of Gynecology, Matemal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning 530003, China
Huang Xiaochen
Department of Gynecology, Fujian Maternity and Children Health Hospital, Fuzhou 350001, China
Hu Xiaoyu
Department of Maternity Care, Shanghai Center for Women and Children′s Health, Shanghai 200062, China
Dong Xiaojing
Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, China
Cheng Tongyin
Department of Maternal Health Care, Maternal and Child Health Care Hospital of Urumqi, Urumqi 830000, China
Zhou Yuanzhong
Department of Health Toxicology, School of Public Health, Zunyi Medical University, Zunyi 563006, China
Zhang Yan
Shanghai Institute for Biomedical and Pharmaceutical Technologies, National Health Commission Key Laboratory of Reproduction Regulation, School of Public Health, Fudan University, Shanghai 200237, China
Che Yan
Shanghai Institute for Biomedical and Pharmaceutical Technologies, National Health Commission Key Laboratory of Reproduction Regulation, School of Public Health, Fudan University, Shanghai 200237, China
