Prevalence of stroke and stroke related risk factors: a population based cross sectional survey in southwestern China

Xingyang Yi, Hua Luo, Ju Zhou, Ming Yu, Xiaorong Chen, Lili Tan, Wei Wei, Jie Li, Xingyang Yi, Hua Luo, Ju Zhou, Ming Yu, Xiaorong Chen, Lili Tan, Wei Wei, Jie Li

Abstract

Background: Stroke and its risk factors epidemiological survey can help identify individuals at higher risk and therefore promote stroke prevention strategies. The aim of this study was to estimate the current prevalence of stroke and high risk stroke population, and evaluate stroke associated risk factors in southwestern China.

Methods: This was a multi-center, cross sectional survey in southwestern China from May 2015 to September 2015. The eight communities were selected at random, and 17,413 residents aged ≥40 years volunteered to participate in this survey. Data were collected through face-to-face survey using a structured questionnaire. Five hundred twenty-one participants with incomplete questionnaires on stroke history or risk factors records were excluded.

Results: A total of 16,892 people included in analysis. The overall prevalence of stroke was 3.1% (95% CI 2.6-3.9%), 17.1% of participants were the high risk stroke population. After full adjustments, hypertension, diabetes, dyslipidemia, overweight, lack of exercise and family history of stroke were significantly associated with overall stroke and ischemic stroke. The largest contributor was hypertension (population-attributable risk 23.6%), followed by dyslipidemia, physical inactivity, family history of stroke, diabetes, and overweight. However, only hypertension (OR = 3.66, 95% CI 1.82-8.23) was significantly associated with hemorrhagic stroke.

Conclusions: The prevalence of stroke and high risk stroke population was high among adults aged ≥40 years in southwestern China. Hypertension, dyslipidemia and lack of exercise were stronger contributors for stroke, these findings suggest that individual-level and population-level interventions for these leading risk factors are necessary to prevent stroke.

Keywords: Epidemiology; Health care; Risk factors; Stroke.

Conflict of interest statement

The authors declare that they have no competing interests.

Figures

Fig. 1
Fig. 1
Data preparing and cleaning process in this survey

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