Number of the subjects | Mean | SD | |||
---|---|---|---|---|---|
N | % | ||||
Demographic characteristics | |||||
Total | 633 | 100.0 | |||
Sex | Male | 546 | 86.3 | ||
Female | 87 | 13.7 | |||
Age distribution (year) | 50–59 | 57 | 52.6 | ||
60–69 | 196 | 69.4 | |||
≥ 70 | 380 | 71.6 | |||
Smoking | No | 212 | 33.5 | ||
Yes | 385 | 60.8 | |||
No answer | 36 | 5.7 | |||
Alcohol consumption (days/week) | <1 | 336 | 53.1 | ||
≥1 | 260 | 41.1 | |||
No answer | 37 | 5.9 | |||
Employment characteristics | |||||
Age at first employment (years) | 27.9 | 5.3 | |||
Age at date last observed among survivors (years) | 70.7 | 7.5 | |||
Year in the first employment (year) | 1974.2 | 6.2 | |||
<1975 | 339 | 53.6 | |||
1975–1993 | 294 | 46.4 | |||
Duration of employment (years) | 12.8 | 5.6 | |||
<10 | 204 | 29.7 | |||
10–<20 | 379 | 59.9 | |||
≥20 | 66 | 10.4 | |||
Cumulative CS2 exposure index (ppm·yr) | 128.2 | 82.2 | |||
0–<67a | 169 | 26.7 | |||
67–<134 | 206 | 32.5 | |||
≥134b | 258 | 40.8 | |||
Time-weighted average CS2 concentration (ppm) | 10.1 | 4.9 | |||
0- < 5c | 112 | 17.7 | |||
5–<10d | 199 | 31.4 | |||
≥10 | 322 | 50.9 | |||
Department distribution by CS2 exposure concentration | |||||
Low (<5 ppm)e | 340 | 53.7 | |||
High (≥5 ppm) | 293 | 46.3 |