Table 2.
Observed and expected numbers of cases of cancer and standardised incidence ratios among male airline pilots in the Nordic countries
| Primary site (ICD-7 code)
|
Observed
|
Expected
|
Standardised incidence ratio (95% CI)
|
|---|---|---|---|
| All sites (140-208)* | 466 | 455.6 | 1.02 (0.93 to 1.12) |
| Stomach (151) | 21 | 21.8 | 0.96 (0.59 to 1.47) |
| Colon (153) | 31 | 32.9 | 0.94 (0.64 to 1.34) |
| Rectum (154) | 19 | 22.4 | 0.85 (0.51 to 1.32) |
| Pancreas (157) | 12 | 13.0 | 0.92 (0.48 to 1.61) |
| Larynx (161) | 9 | 7.59 | 1.19 (0.56 to 2.29) |
| Lung (162) | 51 | 66.5 | 0.77 (0.57 to 1.01) |
| Prostate (177) | 64 | 52.9 | 1.21 (0.93 to 1.54) |
| Testis (178) | 21 | 18.9 | 1.11 (0.69 to 1.70) |
| Kidney (180) | 14 | 18.5 | 0.76 (0.41 to 1.27) |
| Bladder (181) | 29 | 33.8 | 0.86 (0.57 to 1.23) |
| Skin melanoma (190): | 56 | 24.4 | 2.29† (1.73 to 2.98) |
| Head and neck (190.0-4)‡ | 7 | 2.81 | 2.49† (1.00 to 5.14) |
| Trunk (190.5)‡ | 32 | 13.7 | 2.33† (1.60 to 3.30) |
| Limbs (190.6-7)‡ | 14 | 6.12 | 2.29† (1.25 to 3.84) |
| Other skin (191)*: | 27 | 13.0 | 2.08† (1.74 to 2.79) |
| Kaposi's sarcoma‡ | 0 | 0.29 | 0.00 (0.00 to 12.7) |
| Brain, nervous system (193) | 18 | 21.4 | 0.84 (0.50 to 1.33) |
| Thyroid (194) | 3 | 3.40 | 0.88 (0.18 to 2.58) |
| Bone (196) | 0 | 1.53 | 0.00 (0.00 to 2.41) |
| Soft tissue (197) | 3 | 3.33 | 0.90 (0.19 to 2.63) |
| Leukaemia (204-208): | 15 | 12.3 | 1.21 (0.68 to 2.00) |
| Chronic lymphatic‡ | 4 | 3.88 | 1.03 (0.28 to 2.64) |
| Other‡: | 11 | 8.46 | 1.30 (0.65 to 2.33) |
| Acute myeloid‡ | 6 | 4.27 | 1.41 (0.52 to 3.06) |
| Not included above | |||
| Basal cell carcinoma of the skin§ | 61 | 24.8 | 2.46† (1.88 to 3.16) |
*
Excludes basal cell carcinoma and, in Denmark, all non-melanoma skin cancers diagnosed before 1979.
†
Significant at P<0.05.
‡
Subcategory also included in main category.
§
Only Denmark (1979-96) and Finland (1953-97).