Relative risk (odds ratio; OR) of certain cancer sites in relation to flight hours and high altitude, long distance flight duty among cabin crew
| Cancer site | >10000 total block hours | High altitude, long distance flight duty | >5000 block hours in high altitude, long distance flights | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Cases | OR | 95% CI | Cases | OR | 95% CI | Cases | OR | 95% CI | |
| *Odds ratios could not be estimated because there were no unexposed cases. | |||||||||
| Women | |||||||||
| All cancer | 7 | 1.68 | 0.41 to 6.83 | 26 | 1.43 | 0.40 to 5.04 | 7 | 1.31 | 0.44 to 3.86 |
| Breast | 3 | 1.14 | 0.15 to 8.48 | 14 | 1.79 | 0.31 to 10.45 | 5 | 3.27 | 0.54 to 19.70 |
| Malignant melanoma | 2 | 2.67 | 0.20 to 35.14 | 5 | –* | – | 2 | 2.59 | 0.18 to 37.20 |
| Men | |||||||||
| All cancer | 14 | 3.60 | 0.28 to 46.32 | 17 | –* | – | 13 | 0.21 | 0.04 to 1.28 |
| Malignant melanoma | 3 | –* | – | 5 | –* | – | 3 | 1.00 | 0.03 to 31.97 |
| All cabin crew | |||||||||
| All cancer | 21 | 2.03 | 0.60 to 6.90 | 43 | 1.29 | 0.39 to 4.29 | 20 | 0.78 | 0.30 to 2.05 |
| Malignant melanoma | 5 | 4.67 | 0.45 to 49.14 | 10 | –* | – | 5 | 1.83 | 0.23 to 14.52 |