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Effect of premature birth on long-term systolic blood pressure variability in women [Anatol J Cardiol]
Anatol J Cardiol. 2018; 20(6): 347-353 | DOI: 10.14744/AnatolJCardiol.2018.97415  

Effect of premature birth on long-term systolic blood pressure variability in women

Linying Shi1, Shasha An2, Jianqing Niu3, Haiyan Zhao2, Yangyang Wang3, Shouling Wu2, Xinchun Yang1
1Department of Cardiology, Chaoyang Hospital, Capital Medical University, Beijing-China
2Department of Cardiology, Kailuan Hospital Affiliated to Hebei United University; Tangshan-China
3Department of Obstetrics and Gynecology, Kailuan Hospital Affiliated to Hebei United University; Tangshan-China

Objective: To investigate the effect of premature birth (PTB) on long-term systolic blood pressure (SBP) variability (SBPV) in women.
Methods: A total of 1974 pregnant women were divided into PTB group and non-PTB (NPTB) group. The SBP standard deviation (SSD) was calculated by four annual SBP values measured in 20062007, 20082009, 20102011, and 20122013. SBP coefficient of variation (SCV) was calculated by dividing SSD with mean SBP. Multivariate logistic regression analysis was used to analyze the influence of PTB on long-time SSD and SCV in women.
Results: SSD and SCV of the PTB group (10.95 mm Hg and 9.05%, respectively) were higher than those of the NPTB group (9.81 mm Hg and 8.23%, respectively), but there were no significant differences (p>0.05). The number of patients with SSD >9.87 mm Hg and SCV >8.28% in the PTB and NPTB groups was 57 (51.40%) and 62 (55.90%) and 747 (40.10%) and 841 (45.10%), respectively. The number of patients with SSD >9.87 mm Hg and SCV >8.28% in the PTB group was significantly higher than that in the NPTB group (p<0.05). Multiple logistic regression analysis showed that after adjusting other risk factors, the PTB group was at a risk of SSD and SCV elevations with OR values of 1.60 (95% CI: 1.062.40) and 1.64 (95% CI: 1.102.45), respectively.
Conclusion: PTB is a risk factor of long-time SBPV in women, which might be a potential reason for cardiovascular events. Pregnancy may be an important opportunity for early identification of women at an increased risk of cardiovascular disease later in life.

Keywords: premature birth, blood pressure variability, risk factor


Linying Shi, Shasha An, Jianqing Niu, Haiyan Zhao, Yangyang Wang, Shouling Wu, Xinchun Yang. Effect of premature birth on long-term systolic blood pressure variability in women. Anatol J Cardiol. 2018; 20(6): 347-353

Corresponding Author: Shouling Wu, China


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