Background: Hypertension is one of chronic disease mostly had by elderly in Indonesia. Socio-demographic factors, behavioral factors, other health condition factors, and family chronic disease history factors are possibly increase the risk of hypertension. Objective: To describe the prevalence of hypertension and to analyze determinants which influence hypertension in Penjaringan Sub-distric Public Health Centre patients aged 45 years or more. Methods: The sample of this research are Penjaringan Sub-distric Public Health Centre patients aged 45 years or more in 4 days (n= 105), 53,03% of total patients. This design of this research is a cross sectional analytic study with questionnaire as interview instrument to obtain respondent characteristic, physical activity, both respondent and family non-communicable diseases history; mercury sphygmomanometer and stethoscope for respondent blood pressure classification; weight scale and microtoise for weight and height measurement then calculate respondent body mass index. Univariate and bivariate analysis were performed using statistical analysis program SPSS ver 17 with Chi square as the statistical test in 95% confidence interval. Results: 41% of interviewed patients were measured to be hypertensive based on JNC-7 criteria (systolic blood pressure =140 mmHg and/or diastolic blood pressure =90 mmHg). 39% patients had been diagnosed by doctor having hypertension. According to bivariate analysis, being male (47,8% vs 24,0%, OR=2,903, CI 95% 1,022-8,248) and having high cholesterol level history (57,1% vs 25,4%, OR=3,911, CI 95% 1,166-13,114) increase the risk of hypertension. Conclusion: The prevalence of hypertension within respondents due to blood pressure measurement is 41,0%. Hypertension prevalence was greater in male group and high cholesterol group. Blood pressure monitoring in group of aged 45 years or more need to be improved, especially whom to be male gender and having high cholesterol level |