Table 5.
After visit 1 | After two visits | Δ | |||||
---|---|---|---|---|---|---|---|
Risk categories | n= | Crude (%) | Age weighted, % (95% Cl) | n | Crude | Age weighted, % (95% Cl) | n |
Average | 2246 | 22.6 | 30.3 (28.9 to 31.6) | 2326 | 23.4 | 31.3 (29.9 to 32.7) | 128 851 |
Low | 3387 | 34.1 | 33.7 (32.4 to 35.0) | 3495 | 35.2 | 34.1 (32.8 to 35.4) | 48 207 |
Moderate | 2234 | 22.5 | 20.3 (19.3 to 21.3) | 2281 | 23.0 | 20.7 (19.7 to 21.7) | 52 613 |
High | 1206 | 12.1 | 8.2 (7.7 to 8.7) | 1033 | 10.4 | 6.6 (6.1 to 7.1) | −190 741 |
Very high | 853 | 8.6 | 7.5 (6.9 to 8.1) | 792 | 8.0 | 7.2 (6.6 to 7.8) | −36 523 |
Δ=estimated difference between Yemen subjects attributed to the risk category on the basis of blood pressure (BP) measurements taken at the first visit and those attributed to the same class on the basis of average of BP measurements taken at both visits (subjects allocated at visit 1−subjects allocated after two visits).