The prevalence and influencing factors of angina in the elderly of five provinces in China

Objective To investigate the prevalence and influencing factors of angina in the elderly in China and provide the basis for prevention. Methods We randomly recruited a sample of 5 315 residents aged ≥60 years from Guangdong, Shanghai, Heilongjiang, Shanxi and Hubei provinces in China by multistage sampling. We examined each of participants and recorded Angina based on self-reported diagnosis of a physician. We also documented socio-demography and influencing factors. And the risk factors of angina were explored using univariate analysis and Logistic regression analysis.Results The prevalence of angina was 7.19%in the elderly of these five provinces. There were significant associations between angina and the following factors:being female, worker,teacher/servicemen/merchantmen,living in urban, with lower average household income(<10 000 Yuan/year),having serious economic hardship,smoker or ex-smoker,hypertension,hypercholesterolemia, diabetes and worrying about children (all P<0.05).Conclusions A high risk of angina was associated with female gender, worker or teacher/servicemen/merchantmen, living in urban, lower average household income, serious economic hardship, smoking, hypertension, hyperlipidemia, diabetes and worrying about children. We should take interventions against angina in the high-risk population.