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Table 1 Prevalence of hypertension in 116,130 patients presenting to rural health facilities by background characteristics, Zambia

From: Prevalence of hypertension and its treatment among adults presenting to primary health clinics in rural Zambia: analysis of an observational database

Characteristic (unit) Age, mean (SD) Number of Patients, n (% of total) Crude prevalence of hypertension, n (% of row) Age standardized prevalence of hypertension, % [95 % CIa]
Age (years)     --
 25-34 -- 46,547 (40.1) 6497 (14.0) --
 35-44 -- 34,406 (29.6) 6761 (19.7) --
 ≥45 -- 35,177 (30.3) 13,537 (38.5) --
Sex     
 Females 40 (13.9) 66,138 (56.9) 15,635 (23.6) 29.7 [29.3, 30.0]
 Males 41 (13.9) 49,992 (43.1) 11,156 (22.3) 25.8 [25.4, 26.2]
BMI (kg/m2)     
 <18.5 43 (15.6) 16,820 (14.5) 2812 (16.7) 18.3 [17.6, 18.9]
 18.5-24.9 39 (13.5) 66,362 (57.1) 13,299 (20.0) 25.4 [25.0, 25.7]
 25.0-29.9 42 (13.4) 15,964 (13.7) 4925 (30.8) 36.0 [35.2, 36.8]
 ≥30 43 (12.8) 7377 (6.4) 3152 (42.7) 46.6 [45.4, 47.7]
Total 40 (13.9) 116,130 26,791 (23.1) 28.0 [27.7, 28.3]
  1. aCI confidence interval