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Table 4 Study population requiring pharmacotherapy using WHO/ISH chart at different threshold levels and single risk factors approach, n (%)

From: Total cardiovascular risk for next 10 years among rural population of Nepal using WHO/ISH risk prediction chart

Approach Variants Persons requiring drugs
Threshold CV risk >30% Threshold CV risk >20%
Male Female Total Male Female Total
WHO/ISH chart Chart 2 (1.3) 4 (2.0) 6 (1.8) 7 (4.5) 8 (4.2) 15 (4.3)
Chart + BPa 16 (10.6) 8 (4.2) 24 (6.9) 15 (9.7) 8 (4.2) 23 (6.6)
Total 18 (11.7) 12 (6.3) 30 (8.6)b 22 (14.3) 16 (8.4) 38 (11)c
Single risk factor BP ≥ 140/90 58 (38.7) 52 (27.2) 110 (31.9) 58 (38.7) 52 (27.2) 110 (31.9)
TC ≥ 6 8 (5.2) 6 (3.1) 14 (4.1) 8 (5.2) 6 (3.1) 14 (4.1)
Total 64 (43.9) 58 (30.3) 124 (36) 64 (43.9) 58 (30.3) 124 (36)
  1. aBP ≥ 160/100 mmHg
  2. bChart with BP ≥ 160/100 mmHg vs single risk factor, at >30% threshold, χ2 = 64, p = 0.001
  3. cChart with BP ≥ 160/100 mmHg vs single risk factor, at >20% threshold, χ2 = 64.5, p = 0.001