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. 2019 Mar 25;18(1):72.
doi: 10.1186/s12944-019-1010-y.

Sex difference in the incidence of stroke and its corresponding influence factors: results from a follow-up 8.4 years of rural China hypertensive prospective cohort study

Yali Wang  1 , Yue Dai  1 , Jia Zheng  1 , Yanxia Xie  1 , Rongrong Guo  1 , Xiaofan Guo  2 , Guozhe Sun  2 , Zhaoqing Sun  3 , Yingxian Sun  4 , Liqiang Zheng  5
Affiliations

Sex difference in the incidence of stroke and its corresponding influence factors: results from a follow-up 8.4 years of rural China hypertensive prospective cohort study

Yali Wang et al. Lipids Health Dis. .

Abstract

Background: Few studies investigate sex difference in stroke incidence in rural China hypertensive population.

Methods: A total of 5097 hypertensive patients aged ≥35 years (mean age, 56.3 ± 11.2 years; 43.8% men) were included in our analysis with a median follow-up 8.4 years in Fuxin county of Liaoning province in China. Cox proportional hazard models were used to analyze the association between the potential factors and incident stroke.

Results: We observed 501 new strokes (310 ischemic, 186 hemorrhagic, and 5 unclassified stroke) during the follow-up. The overall incidence of stroke was 1235.21 per 100,000 person-years; for men, the rates were 1652.51 and 920.80 for women. This sex difference in all stroke can be explained by approximately 25% through age, systolic blood pressure, body mass index, low-density lipoprotein-cholesterol, current smoking, current drinking, antihypertensive drugs, education and physical activity. Subgroup analysis indicated that in hemorrhagic stroke this sex difference was more remarkable (63.89% can be explained).

Conclusions: The incidence of stroke was higher in men than that in women and this difference was partly explained by several traditional cardiovascular risk factors.

Keywords: Incidence; Influence factors; Sex difference; Stroke.

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Conflict of interest statement

Ethics approval and consent to participate

The Ethics Committee of China Medical University has approved the research plan and written informed consent has been formally obtained from all patients or their guardians.

Consent for publication

Not applicable.

Competing interests

The authors declare that they have no competing interests.

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Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Figures

Fig. 1
Fig. 1
The study population inclusion and exclusion process. CAD: coronary artery disease
Fig. 2
Fig. 2
The incidence of stroke and its subtypes by sex
See this image and copyright information in PMC

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