Hypertension control in Kerala, India: A prescription-based study at primary and secondary level health care institutions.

OBJECTIVE: We undertook a prescription-based study to identify the provider and institution-level factors related to achieving guideline-recommended control of hypertension and diabetes mellitus in Kerala, India. METHODS: This cross-sectional study in primary and secondary care hospitals in Kerala included both public and private institutions. One practitioner was selected from each institution. Data on institutional and provider factors were collected using a structured questionnaire. Prescriptions were photographically captured and data on disease status and drugs prescribed were recorded. Factors associated with disease control were identified using binary logistic regression. RESULTS: Totally 4679 prescriptions were included for analysis. For hypertension-only patients, control levels were 31.5% and was significantly higher in public hospitals (Adjusted odds ratio (AOR) 1.96, 95% confidence intervals (CI) 1.50-2.57). Among patients with diabetes only, diabetes control was seen in 36.6%. When both conditions were present, control was achieved in only 17.0% patients. Being prescribed two or more drugs indicated lower control, whatever the respective condition. Among antihypertensive prescriptions rationality of 26.7% were questioned, such as lack of Renin Angiotensin System (RAS) inhibitor in diabetic hypertensives, dual RAS blockage, and indication for beta-blocker monotherapy. CONCLUSIONS: In this prescription-based study in Kerala, India, a majority of hypertensive patients did not have controlled blood pressure levels, particularly if diabetes coexisted. This has serious implications as Kerala is the state with the highest burden of hypertension in India. Several prescription patterns were of questionable rationality. Further research and actions on rationality of anti-hypertensive prescriptions and barriers to treatment intensification is warranted.

Rate and Risk of All Cause Mortality among People with Known Hypertension in a Rural Community of Southern Kerala, India: The Results from the Prolife Cohort.

BACKGROUND: Hypertension is one of the most important determinants of death due to vascular damage and is fast emerging as a high burden disease in India. However, its documentation is poor in the country. This study aims to estimate the rate and the causal pattern of mortality in a cohort of people with high blood pressure as compared to normotensives. METHODS: The study setting is Varkkala, a rural village in southern Kerala, India, and the study design was that of a prospective cohort. A total of 77,881 participants of age 20 years and above were considered for analysis. The rate and risk of all cause mortality (death due to any cause) among hypertensives were quantified and compared against the normotensives. The causes of death were also analyzedin both the groups. Cox proportional hazard models were created to estimate the hazard ratios of death among hypertensives adjusted for sociodemographic factors, behaviors, and comorbidities. RESULTS: The incidence proportion of deaths in the study was 4.28% during the follow-up period of 6 years. The relative risk of mortality was 3.13 (CI: 2.91-3.37) in the high BP group. The age-adjusted hazard ratio of all cause mortality for the high BP group was 2.96 (2.56-3.42). Coronary artery disease was the major cause of death among the subjects with high BP. CONCLUSIONS: The study revealed high prevalence of hypertension in the study population. A person with hypertension is at three times higher risk of death due to any cause compared to a normotensive individual even after adjustment for age.