Table 1. Baseline characteristics of the study population (n=34,709).
| Characteristics | Female
(n = 27,073) |
Male
(n=7,636) |
Total
(n = 34,709) |
|||
|---|---|---|---|---|---|---|
| N | % | N | % | N | % | |
| Age at recruitment (years) | ||||||
| Less than 45 | 4,432 | 16.7 | 1,018 | 13.6 | 5,464 | 16.0 |
| 45 – 50 | 4,983 | 18.8 | 981 | 13.1 | 5,970 | 17.5 |
| 51 – 55 | 4,956 | 18.6 | 1,284 | 17.2 | 6,254 | 18.3 |
| 56 – 60 | 4,596 | 17.3 | 1,191 | 15.9 | 5,796 | 17.0 |
| 61 – 65 | 3,307 | 12.4 | 1,100 | 14.7 | 4,413 | 12.9 |
| Greater than 65 | 4,306 | 16.2 | 1,914 | 25.5 | 6,226 | 18.3 |
| Mean ±SD | 57.8±42.3 | 54.3±37.1 | 55.5±38.3 | |||
| Median (Min: Max) | 53.9 (40:98) | 56.8 (40:99) | 54.5 (40:99) | |||
| Education | ||||||
| No formal education | 277 | 1.0 | 88 | 1.2 | 366 | 1.1 |
| Primary school | 21,122 | 78.2 | 5,968 | 78.3 | 27,137 | 78.1 |
| Secondary school | 1,753 | 6.5 | 504 | 6.5 | 2,261 | 6.5 |
| Tertiary school | 1,929 | 7.1 | 543 | 7.1 | 2,482 | 7.1 |
| Collage | 357 | 1.3 | 86 | 1.1 | 445 | 1.3 |
| Under graduate | 1,276 | 4.7 | 303 | 4.2 | 1,582 | 4.6 |
| Post graduate | 313 | 1.2 | 130 | 1.6 | 443 | 1.3 |
| Occupation | ||||||
| Unemployed | 880 | 3.3 | 184 | 2.4 | 1,068 | 3.1 |
| Farmer | 21,868 | 80.9 | 6,314 | 82.9 | 28,236 | 81.3 |
| Labor | 1,194 | 4.4 | 354 | 4.7 | 1,552 | 4.5 |
| Own business | 810 | 3.0 | 227 | 3.0 | 1,040 | 3.0 |
| Government/State
enterprise |
1,497 | 5.5 | 408 | 5.3 | 1,908 | 5.5 |
| Others | 789 | 2.9 | 131 | 1.7 | 920 | 2.6 |
| Smoking | ||||||
| No | 26,551 | 99.0 | 6,133 | 81.3 | 32,752 | 95.1 |
| Yes | 269 | 1.0 | 1,415 | 18.7 | 1,684 | 4.9 |
| Underlying disease | ||||||
| No | 21,817 | 80.6 | 6,231 | 81.1 | 27,839 | 81.0 |
| Yes | 5,256 | 19.4 | 1,405 | 18.9 | 6,870 | 19.0 |
| Diabetes mellitus | ||||||
| No | 25,473 | 94.1 | 7,325 | 95.9 | 32,864 | 94.5 |
| Yes | 1,600 | 5.9 | 311 | 4.1 | 1,913 | 5.5 |
| Other underlying disease | ||||||
| No | 25,028 | 92.5 | 7,160 | 93.7 | 32,251 | 92.7 |
| Yes | 2,045 | 7.5 | 476 | 6.3 | 2,526 | 7.3 |