Table 2.
Characteristics of INWORKS cohorts, 1943–2005
| Characteristics | France (n=59003) | UK (n=147866) | US (n=101 428) | Total (n=308297) | ||||
|---|---|---|---|---|---|---|---|---|
| Sex | ||||||||
| Male | 51567 | 87.40% | 134812 | 91.17% | 81883 | 80.73% | 268262 | 87.01% |
| Female | 7436 | 12.60% | 13054 | 8.83% | 19545 | 19.27% | 40035 | 12.99% |
| Year of birth | ||||||||
| Mean(SD) | 1947 (13) | 1944 (18) | 1934 (17) | 1941 (18) | ||||
| Range | 1894–1975 | 1877–1983 | 1873–1973 | 1873–1983 | ||||
| Mean age, years (SD) | ||||||||
| At start employment | 27 (7) | 28 (11) | 30 (9) | 28 (10) | ||||
| At last observation | 56 (13) | 54 (15) | 65(1) | 58 (15) | ||||
| Mean duration of employment (SD) in years | 21 (10) | 13 (10) | 14 (11) | 15 (11) | ||||
| Mean duration of follow-up (SD) in years | 25 (9) | 23 (12) | 33 (13) | 27 (12) | ||||
| Total person-years | 1469500 | 3410483 | 3341049 | 8221032 | ||||
| Vital status | ||||||||
| Alive | 52565 | 89.09% | 118775 | 80.33% | 65573 | 64.65% | 236913 | 76.85% |
| Deceased | 6310 | 10.69% | 25307 | 17.11% | 35015 | 34.52% | 66632 | 21.61% |
| Emigrated or lost to follow-up | 128 | 0.22% | 3784 | 2.56% | 840 | 0.83% | 4752 | 1.54% |
SD, standard deviation.