Key result
Among 1,946 rural adults, 38.5% had hypertension; of these, 43.5% were aware, 87.1% of the aware were treated, and 36.2% of the treated were controlled, indicating the traditional Rule of Halves is no longer strictly valid.
Why the study?
Hypertension is a major cause of CVD, and validation of the standard Rule of Halves was needed to update medical education and guide community-level control strategies.
Cross-Sectional (n=1,946)
No
Challenges Rule of Halves in rural adults; hypothesis-generating for updated metrics before practice change.
Background: Hypertension is one of the most important causes for cardiovascular disease (CVD) which poses a major public health challenge. Rule of Halves in hypertension has long been used as a standard referral point for level of awareness, treatment& control of blood pressure in general population considering it to be 50 percent at each level. Aim and Objectives: To validate “Rule of Halves”, for updated teaching to medical and nursing students and formulation of appropriate strategies for prevention and control of Hypertension at community level. Methodology: A cross section survey was conducted covering all households in the randomly selected 30 villages of district Dehradun, Uttarakhand by house-to-house visit. A pre-validated, structured questionnaire was used for capturing data.Hypertension was defined as Systolic Blood pressure -140mmHg or greater &/or Diastolic Blood pressure of 90mm Hg or greater or both or treatment with antihypertensives.Result: Out of 1946 screened, 39 percent (749) were found hypertensive. Out of them, less than half (43.5%) were aware,more than 2/3rd(87.1%) were under treatment and approximately one third were well controlled (36.2%) with given treatment.Age more than 40 years, female gender and self-employment were found significant factors after adjusting the confounding factors for hypertension in binary logistic regression analysis.Conclusion: Hypertension was more among younger age group and females had better control of Hypertension. Awareness regarding hypertensive status is still less than fifty percent, but those who are aware, majority of them are on treatment, but control on given treatment is far from optimal.
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Saxena et al. (2021) conducted a cross-sectional in Hypertension (n=1,946). Hypertension was evaluated on Proportion of hypertensive individuals who are aware, treated, and controlled (Rule of Halves). Among 1,946 rural adults, 38.5% had hypertension; of these, 43.5% were aware, 87.1% of the aware were treated, and 36.2% of the treated were controlled, indicating the traditional Rule of Halves is no longer strictly valid.
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