Case–control associations between select occupations at two time points and TGCT risk
| Cases (N=530) | Controls (N=530) | ||
| Occupation/occupational group (AFSC) | N | N | OR (95% CI) |
| Pilot (11) at serum sample | 22 | 10 | 2.54 (1.11–5.79) |
| Pilot (11) at case diagnosis | 36 | 23 | 1.72 (0.98–3.02) |
| Pilot (11) at serum sample and at case diagnosis | 21 | 8 | 2.84 (1.20–6.74) |
| Fighter pilot (11F) at serum sample | 9 | 3 | – |
| Fighter pilot (11F) at case diagnosis | 13 | 5 | 2.73 (0.96–7.72) |
| Fighter pilot (11F) at serum sample and at case diagnosis | 7 | 2 | – |
| Pilot/pilot trainee (11, 92T0) at serum sample | 44 | 28 | 1.79 (1.05–3.08) |
| Pilot/pilot trainee (11, 92T0) at case diagnosis | 46 | 28 | 1.78 (1.06–3.01) |
| Pilot/pilot trainee (11, 92T0) at serum sample and at case diagnosis | 41 | 25 | 1.87 (1.06–3.27) |
| Aircraft maintenance (2A, 21A) at serum sample* | 39 | 28 | 1.44 (0.86–2.39) |
| Aircraft maintenance (2A, 21A) at case diagnosis* | 69 | 47 | 1.54 (1.04–2.29) |
| Aircraft maintenance (2A, 21A) at serum sample and at case diagnosis* | 33 | 19 | 1.85 (1.03–3.31) |
All conditional logistic regression models adjusted for number of deployments before case diagnosis (0, 1, 2+).
Bold indicative of statistical significance.
Comparison (non-exposed) group is everyone not in selected occupation/occupational group.
*Models additionally adjusted for grade at case diagnosis.
AFSC, Air Force Specialty Code; TGCT, testicular germ cell tumour.