Table 2. Demographic characteristic of the shipbreaking cohort.
| Demographic characteristic | Cohort (N = 4427, person-years = 109932.4) | Control (N = 22135, person-years = 588286.5) | |||
|---|---|---|---|---|---|
| n | (%) | n | (%) | p-value | |
| Vitality status | <0.001 | ||||
| Alive | 3487 | (78.8) | 20254 | (91.5) | |
| Deceased | 940 | (21.2) | 1881 | (8.5) | |
| Cancer status | <0.001 | ||||
| Cancer group | 436 | (9.9) | 1488 | (6.7) | |
| Non-cancer group | 3991 | (90.1) | 20647 | (93.3) | |
| Sex | 1.000 | ||||
| Men | 3732 | (84.3) | 18660 | (84.3) | |
| Women | 695 | (15.7) | 3475 | (15.7) | |
| Year of birth | |||||
| ≤ 1945 | 1149 | (26.0) | 5755 | (26.0) | 0.993 |
| 1945~1955 | 1890 | (42.7) | 9429 | (42.7) | |
| ≥ 1956 | 1388 | (31.3) | 6951 | (31.3) | |
| Place-of-residence | 1.000 | ||||
| North area | 241 | (5.4) | 1205 | (5.4) | |
| Central area | 131 | (3.0) | 655 | (3.0) | |
| South area | 4030 | (91.0) | 20150 | (91.0) | |
| East area | 25 | (0.6) | 125 | (0.6) | |
| Asbestos exposure groups | |||||
| Low (< 32.86 TEP) | 1525 | (34.4) | |||
| Medium (32.86–45.45 TEP) | 1378 | (31.1) | |||
| High (≥ 45.46 TEP) | 1524 | (34.4) | |||
| mean | (SD) | ||||
| Age at entry workplace (years) | 31.2 | (9.1) | |||
| Age at exit workplace (years) | 38.1 | (9.1) | |||
| Exposure duration (years) | 6.9 | (1.8) | |||