TABLE 2.
GENERAL POPULATION CHARACTERISTICS, WORK HISTORY AND ISOCYANATE EXPOSURE OF 581 WORKERS IN SPRAY-PAINTING COMPANIES
| Office Workers | Spray Painters | Others | |
|---|---|---|---|
| No. | 50 | 241 | 290 |
| Sex, % male | 58 | 99 | 97 |
| Age, yr, AM (SD) | 40.1 (10.1) | 36.9 (10.4) | 39.0 (12.0) |
| Smoking status | |||
| Smoker, % | 23.4 | 42.8 | 35.6 |
| Stopped smoking within last year, % | 2.1 | 4.7 | 5.3 |
| Former smoker, % | 40.4 | 19.2 | 23.2 |
| Never smoked, % | 34.0 | 33.3 | 35.9 |
| Total pack-years, AM (SD) | 7.7 (10.4) | 8.2 (11.9) | 8.5 (13.4) |
| Branch type, % | |||
| Car body repair shop | 72 | 66 | 85 |
| Furniture paint shop | 6 | 16 | 11 |
| Boat/harbor equipment paint shop | 2 | 6 | 2 |
| Airplane paint shop | 20 | 12 | 2 |
| Work history, AM (SD) | |||
| No. of years worked | 15.6 (10.1) | 16.3 (9.7) | 19.2 (12.4) |
| No. of years in branch | 11.9 (10.7) | 15.7 (9.6) | 18.1 (12.4) |
| No. of years as spray painter | 2.0 (4.7) | 14.9 (9.6) | 3.4 (7.5) |
| Isocyanate exposure, μg NCO × m−3 × h × mo−1 | |||
| Total isocyanate, median (min–max) | 0 | 3,682 (4–66,464) | 8 (0–13,473) |
| HDI, median (min–max) | 0 | 27 (0.2–1,427) | 0.3 (0–1,920) |
| Biuret, median (min–max) | 0 | 269 (0.2–13,568) | 2 (0–1,587) |
| Isocyanurate, median (min–max) | 0 | 2,250 (6–87,623) | 6 (0–30,0006) |
Definition of abbreviations: AM = arithmetic mean; HDI = hexamethylene diisocyanate.