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Year : 2016  |  Volume : 13  |  Issue : 1  |  Page : 51-56

Application of “rule of halves” in an urban adult population, Himachal Pradesh: A study from North India

Department of Community Medicine, IG Medical College, Shimla, Himachal Pradesh, India

Correspondence Address:
Anjali Mahajan
Department of Community Medicine, IG Medical College, Shimla - 171 001, Himachal Pradesh
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0189-7969.165165

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Introduction: Approximately half of most common chronic disorders are undetected that half of those detected are not treated, and that half of those treated are not controlled. This is true of hypertension as well: The “rule of halves.” However, the relevance of this is being questioned now. Objective: The aim of the present study was to assess the applicability of the rule of halves in an urban adult population in North India to evaluate its relevance in establishing levels of awareness, thus control of hypertension in general population. Materials and Methods: A cross-sectional community survey was done to include 187 men and 213 women aged >20 years of age in Shimla city, Himachal Pradesh. Hypertension was assessed using standardized recording, structured schedule on diagnosis and antihypertensive drug treatment according to The Seventh Report of the Joint National Committee on Prevention, Detection, Evaluation and Treatment of High Blood Pressure. Results: The data were expressed in percentages, and Chi-square test was used to list the significance of sociodemographic factors. Of the total 400 participates, 208 individuals (52%) had hypertension. The prevalence of self-reported hypertension was 35% (139/400). However, the prevalence of self-reported hypertension (aware) among diagnosed patients of hypertension on examination by investigator was 139/208. Conclusion: The relevance of “rule of halves” in establishing the levels of awareness and control of hypertension is undervalued and cannot be undermined especially in context of developing countries.

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