Abstract: Objective To investigate the situation and risk factors of hypertensive retinopathy in Zhangjiakou city. Methods The residents from 19 counties and districts in Zhangjiakou were screened for hypertension and blood glucose level. Blood pressure, age, gender, course of disease, body mass index (BMI) and complications of the patients were collected by a questionnaire survey. The prevalence of hypertensive retinopathy was analyzed and the risk factors affecting the patients were analyzed. Results A total of 1 320 hypertension patients were found in 8 056 residents with prevalence rate as 16.39% (1 320/8 056) and 212 of the hypertensive patients were found to have retinopathy.The prevalence rate of retinopathy was 13.06% (212/1 320) in hypertensive patients and 2.63% in all the examined residents. The proportion of patients aged ≥60 was higher than that of patients aged＜60 years old, the proportion of patients without hypertension treatment history was higher than that of patients with hypertension treatment history (P＜0.05). The disease course, systolic blood pressure, diastolic blood pressure, diabetes and smoking history in the patient group were higher than those in the control group(P＜0.05). Long hypertension course of disease, high systolic and diastolic blood pressure and diabetes history were risk factors for the occurrence of hypertensive retinopathy (P＜0.05). Conclusions The incidence hypertensive retinopathy in 19 counties and districts of Zhangjiakou city is low but is high among residents aged ≥60 years. The risk factors are long course of disease, high systolic and diastolic blood pressure and diabetes history.

Key words: hypertensive retinopathy, risk factors, prevalence rate