General characteristics of the groups studied
| HR radiation workers | |||||
|---|---|---|---|---|---|
| Total | Whole-HR | CBC-HR | TLD-HR | Controls | |
| Participants | 417 | 297 | 56 | 241 | 120 |
| Age, years* (range) | 39.9±0.4 (22–77) | 41.6±0.4 (26–68) | 40.7±1.3 (26–68) | 41.8±0.4 (27–62) | 35.8±1.0 (22–77) |
| <40 years, n | 219 | 115 | 29 | 86 | 104 |
| ≥40 years, n | 198 | 182 | 27 | 155 | 16 |
| Gender, n | |||||
| Female | 47 | 4 | 4 | 0 | 43 |
| Male | 370 | 293 | 52 | 241 | 77 |
| Smoking habits, n | |||||
| Never-smokers | 222 | 147 | 32 | 115 | 75 |
| Ever-smokers | 195 | 150 | 24 | 126 | 45 |
| Medical exposure, n | |||||
| Never-CT | 313 | 223 | 39 | 184 | 89 |
| Ever-CT | 104 | 74 | 17 | 57 | 31 |
| Duration of radiation works, years* (range) | – | 15.5±0.5 (1–34) | 13.6±1.1 (1–30) | 16.0±0.5 (1–34) | – |
| Reported cumulative dose, mSv* (range) | – | 75.9±3.2 (0–418.3) | 45.5±7.8 (0–418.3) | 82.8±3.4 (1.8–299.2) | – |
*Mean±SEM.
CBC-HR, complete blood cell count-high risk; TLD-HR, thermoluminescent dosimeter-high risk.