Objective To investigate the comorbidity of community patients with stroke in Songjiang District， Shanghai， determine the prevalence and characteristics of comorbidities and influencing factors， and provide scientific evidence for prevention and treatment of stroke.
Methods A natural population-based cohort study was conducted in several communities of Songjiang District from April 2016 to October 2017. Questionnaire survey， physical examination and biochemical examination were conducted in the cohort population to understand the comorbidity of 1 523 patients with stroke at baseline.
Results The prevalence of comorbidities in community patients with stroke was 74.0%， which was higher in female （76.36%） than that in male （70.76%）. The average number of comorbidities was 2.62±1.56， which was significantly higher in female （2.70±1.58） than that in male （2.52±1.54） （t=-2.31， P=0.021）. In this population， the most common two-comorbidity combination was hypertension+central obesity （35.85%）， and the most common three-comorbidity combination was hypertension+dyslipidemia+central obesity （17.20%）， with statistically significant differences by gender and age groups （P<0.05）. Multivariate analysis showed that age ≥65 years， urban population， hyperhomocysteinemia （HHcy）， and family history of hypertension were risk factors associated with comorbidities， whereas educational level of middle school and high school， and physical exercise 1‒3 days per week were protective factors.
Conclusion Prevalence of comorbidity is high in community patients with stroke in Songjiang District， Shanghai. It is suggested to control blood pressure and body weight， adopt healthy lifestyle and take comprehensive prevention and treatment measures in this population.
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