Table 2: Prevalence (%) of hypertension among elderly by age group and gender
| Age group (Yr) | n | Systolic only | Diastolic only | Hypertension |
| Men | ||||
| 60-69 | 1123 | 38.6 | 24.0 | 46.0 |
| 70-79 | 453 | 43.0 | 17.7 | 47.9 |
| > 80 | 101 | 54.5 | 23.8 | 58.4 |
| Pooled | 1677 | 40.8 | 22.3 | 47.3 |
| X2=10.9 | X2=7.7 | X2=5.8 | ||
| (P< 0.01) | (P< 0.05) | (P=0.055) | ||
| Women | ||||
| 60-69 | 1028 | 44.4 | 25.1 | 49.2 |
| 70-79 | 351 | 56.4 | 27.1 | 61.8 |
| > 80 | 77 | 63.6 | 28.6 | 68.8 |
| Pooled | 1456 | 48.3 | 25.8 | 53.3 |
| X2=22.9 | X2=0.9 | X2=24.8 | ||
| (P< 0.01) | (P>0.05) | (P< 0.01) | ||
| Pooled | ||||
| 60-69 | 2151 | 41.4 | 24.5 | 47.6 |
| 70-79 | 804 | 48.9 | 21.8 | 54.0 |
| > 80 | 178 | 58.4 | 25.8 | 62.9 |
| Pooled | 3133 | 44.3 | 23.9 | 50.1 |
| X2=28.7 | X2=2.9 | X2=22.1 | ||
| (P< 0.01) | (P>0.05) | (P< 0.01) | ||