Table 1. Baseline characteristics by the subgroups classify by gender and age.
| Male aged over 60 | Male aged 40–60 | Female aged over 60 | Female aged 40–60 | Total | |
|---|---|---|---|---|---|
| People count, number | 8140 | 33790 | 7621 | 40335 | 89886 |
| Age, mean(SD), years | 70.1 (5.3) | 51.9 (6.5) | 69.5 (5.3) | 52.3 (6.2) | 55.2 (9.1) |
| Person-year, mean(SD), person-years | 14.2 (5.4) | 17.2 (3.6) | 15.5 (4.9) | 17.4 (3.3) | 16.9 (3.9) |
| Number of people died during follow-up | 4498 (55.3) | 3987 (11.8) | 3100 (40.7) | 2863 (7.1) | 14448 |
| Cause of death | |||||
| Cancer(%)a | 1366 (30.4) | 1805 (45.3) | 813 (26.2) | 1437 (50.2) | 5421 (37.5) |
| Cardiovascular disease(%)a | 1062 (23.6) | 748 (18.8) | 801 (25.8) | 438 (15.3) | 3049 (21.1) |
| Respiratory disease(%)a | 652 (14.5) | 197 (4.9) | 286 (9.2) | 110 (3.8) | 1245 (8.6) |
| Others(%)a | 1418 (31.5) | 1237 (31) | 1200 (38.7) | 878 (30.7) | 4733 (32.7) |
| BMI, mean(SD) | 23.7 (3.1) | 24.4 (3.0) | 24.6 (3.5) | 23.7 (3.4) | 24.0 (3.3) |
| Smoking status, number(%)b | |||||
| Never | 3504 (45.6) | 15611 (48.7) | 6893 (95.5) | 36416 (95.3) | 62424 (73.3) |
| Former | 1648 (21.4) | 4114 (12.8) | 111 (1.5) | 312 (0.8) | 6185 (7.3) |
| Current | 2535 (33.0) | 12351 (38.5) | 215 (3.0) | 1475 (3.9) | 16576 (19.5) |
| Alcohol comsuption, number(%)c | |||||
| Never | 4546 (61.3) | 18517 (59.1) | 6459 (95.8) | 32556 (91.9) | 62078 (76.7) |
| Former | 886 (12.0) | 2061 (6.6) | 97 (1.4) | 629 (1.8) | 3673 (4.5) |
| Current | 1981 (26.7) | 10779 (34.4) | 189 (2.8) | 2254 (6.4) | 15203 (18.8) |
| Education level, number(%)d | |||||
| High school or less | 6046 (79.0) | 18720 (58.1) | 6950 (96.0) | 31500 (81.6) | 63216 (73.8) |
| College or above | 1604 (21.0) | 13487 (41.9) | 288 (4.0) | 7088 (18.4) | 22467 (26.2) |
| Physical activity, number(%)e | |||||
| Seldom | 2372 (31.9) | 12370 (39.7) | 2612 (37.0) | 17065 (45.8) | 34219 (41.4) |
| Sometimes | 1113 (15.0) | 6798 (21.8) | 1201 (17.0) | 7631 (20.5) | 16743 (20.3) |
| Frequent | 3952 (53.1) | 11983 (38.5) | 3243 (46.0) | 12526 (33.7) | 31704 (38.4) |
aThe denominator of the proportion is the total number of death for each column.
bmissing data 4701 (5.0%).
cmissing data 8932 (9.9%).
dmissing data 4203 (4.6%).
emissing data 7020 (7.8%).