Objective To investigate the prevalence and influencing factors of carotid arteriosclerosis (CA) among high stroke risk people aged ≥ 40 years in rural areas of Chaoyang prefecture for providing evidence to develop targeted intervention measures on CA prevention and control.
Methods Face-to-face interview with a self-designed questionnaire, physical examination, and laboratory tests were conducted among 6 830 permanent residents aged ≥ 40 years recruited with stratified random cluster sampling in rural areas of Chaoyang prefecture, Liaoning province from September 2017 to May 2018. Subsequent carotid artery ultrasonography was carried out in 2 479 participants assessed as having high stroke-risk based on the National Technical Specification for Stroke Screening and Prevention; CA prevalence and its influencing factors in the high-risk population were analyzed.
Results Among the 2 479 high stroke-risk people, totally 1 211 CA cases were detected and the observed CA prevalence rate was 48.9%. The results of multivariate unconditional logistic regression analysis showed that aged ≥ 50 years, with an annual household income of 5 000 – 19 999 RMB yuan, current smoking, and lack of physical exercise are risk factor of CA for the high stroke-risk people; while, female gender and being overweight/obesity are protective factors against CA.
Conclusion The prevalence of CA is relatively high and mainly influenced by gender, age, total annual household income, smoking, physical exercise and body mass index among middle-aged and older residents with high stroke-risk in rural areas of Chaoyang prefecture.
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