Table 1.
Number of person years at risk among male airline pilots
| Variable
|
Person years (%)
|
|---|---|
| Total sample | 177 243 (100) |
| Country: | |
| Denmark | 65 086 (37) |
| Finland | 14 600 (8) |
| Iceland | 2 520 (1) |
| Norway | 65 837 (37) |
| Sweden | 29 200 (16) |
| Age (years): | |
| <30 | 32 897 (19) |
| 30-39 | 57 297 (32) |
| 40-49 | 45 771 (26) |
| 50-59 | 26 886 (15) |
| 60-69 | 11 244 (6) |
| ⩾70 | 3 151 (2) |
| Block hours, long haul*: | |
| 1-4999 | 33 848 (19) |
| 5000-99 999 | 13 673 (8) |
| ⩾10 000 | 10 922 (6) |
| Estimated radiation dose (μSv)*: | |
| 1-2999 | 82 249 (46) |
| 3000-9999 | 26 089 (15) |
| 10 000-19 999 | 24 201 (14) |
| ⩾20 000 | 20 004 (11) |
*
Do not add up to 100%, because the category “no or unknown exposure” is excluded.