Table 3.
Odds ratios of lung cancer, overall and by histologic subtype, in Asturias, by exposure category
| Total | Squamous cell carcinoma | Adenocarcinoma | Small cell carcinoma | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Controls | Cases | OR (95%CI)a | P-valueb | Cases | OR (95%CI)a | P-valueb | Cases | OR (95%CI)a | P-valueb | Cases | OR (95%CI)a | P-valueb | |
| N | N | N | N | N | |||||||||
| Unexposed | 437 | 416 | Reference | 171 | Reference | 114 | Reference | 74 | Reference | ||||
| Industrial | 63 | 74 | 1.49 (0.93-2.39) | 20 | 0.98 (0.49-1.94) | 20 | 1.82 (0.90-3.66) | 18 | 2.23 (1.01-4.92) | ||||
| Urban | 63 | 70 | 1.33 (0.86-2.06) | 24 | 1.19 (0.65-2.21) | 28 | 1.92 (1.09-3.38) | 8 | 0.87 (0.36-2.10) | ||||
| Semi-urban | 63 | 66 | 1.34 (0.86-2.07) | 0.190 | 27 | 1.65 (0.92-2.97) | 0.400 | 20 | 1.46 (0.78-2.72) | 0.070 | 9 | 1.13 (0.50-2.58) | 0.230 |
aORs were estimated from a multiple logistic regression model that included age, sex, hospital area, tobacco consumption, family history of cancer, and occupation
bP-value for the whole effect of outdoor exposure