Reference ranges and trajectories for blood pressure in pregnancy: findings from a follow-up study based on China Maternal and Newborn's Health Monitoring System. (2nd April 2020)

• Record Type: Journal Article
• Authors: Ma, Yijie; Zhang, Xiao; Che, Qianzi; Wu, Keye; Zhao, Wei; Hu, Huanqing; Yang, Qi; Huang, Aiqun; Chen, Dafang
• Is Part Of: Hypertension in pregnancy. Volume 39:Number 2(2020)
• Page Start: 117
• Page End: 125
• Publication Date: 2020-04-02
• Subjects: Pregnancy blood pressure -- reference range -- Chinese women; Hypertension in pregnancy -- Periodicals; Pregnancy -- Complications -- Periodicals; 618.3261
• DOI: 10.1080/10641955.2020.1742350
• Languages: English
• ISSNs: 1064-1955

Abstract

ABSTRACT: Objectives : This study aimed to establish normal blood pressure reference ranges across gestation and maternal characteristics. Methods : We conducted a follow-up study including 29, 200 Chinese normal pregnant women. Multilevel restrictive cubic spline models were used to calculate normal blood pressure reference ranges among all population and stratified groups. Results : In all normal pregnancies, the normal reference range of systolic blood pressure were 93.94-118.74 mmHg(2.5 th -97.5 th ) and 97.35-124.63 mmHg at 12 and 37 weeks gestation, respectively while 58.79-74.21 mmHg and 59.19-78.25 mmHg were for diastolic blood pressure at 12 and 37 weeks gestation, which differed in subgroups stratified by prepregnancy body mass index and maternal age. Conclusion : This study provides evidence for blood pressure management in Chinese pregnant women.