Prevalence and Determinants of Hypertension Awareness, Treatment, and Control in Botswana: A Nationally Representative Population-Based Survey

Figure 3

Age-standardized proportions of undiagnosed, untreated, and suboptimally controlled blood pressure among adult hypertensives. The common denominator used here was the number of participants with hypertension, defined as self-report of being on antihypertensives in the last two weeks (treated) or having elevated blood pressure (BP) based on survey measurement (mean SBP ≥ 140 mmHg or mean DBP ≥ 90 mmHg). Hypertensives were divided into mutually exclusive groups. Unaware hypertensives were those who had elevated BP, yet had not previously been informed of a hypertension diagnosis by a health professional. Untreated hypertensives were those who had been previously informed of a hypertension diagnosis but were not on medications in the past 2 weeks and had elevated BP. Suboptimally treated hypertensives were those who had been previously informed of a diagnosis and were on medications, yet had elevated BP. Controlled hypertensives were those who had been previously informed of diagnosis, were on medications and had BP < 140/90.