Sociodemographic characteristics among cases and controls and distribution of histological subtypes of lung cancer cases, men, France, 2001–2007
| Cases | Controls | |||
|---|---|---|---|---|
| (n=2260*) | (n=2780) | OR† | 95%CI | |
| Variables | n (%) | n (%) | ||
| Age | ||||
| <50 | 279 (12.3) | 636 (22.9) | Ref. | – |
| 50–60 | 837 (37.0) | 937 (33.7) | 2.04 | 1.72 to 2.42 |
| 61–70 | 814 (36.0) | 911 (32.8) | 2.04 | 1.72 to 2.42 |
| >70 | 330 (14.6) | 296 (10.6) | 2.55 | 2.06 to 3.15 |
| Mean (SD) | 60 (9.1) | 58 (9.9) | p<0.001‡ | |
| Socioeconomic status (the longest duration) | ||||
| Farmers | 69 (3.1) | 168 (6.0) | 0.75 | 0.55 to 1.03 |
| Self-employed workers | 139 (6.2) | 152 (5.5) | 1.65 | 1.26 to 2.15 |
| Managers | 238 (10.5) | 544 (19.6) | 0.78 | 0.64 to 0.96 |
| Intermediate white-collar workers | 314 (13.9) | 564 (20.3) | Ref. | – |
| Office and sales employees | 218 (9.6) | 297 (10.7) | 1.32 | 1.06 to 1.65 |
| Blue-collar workers | 1267 (56.1) | 1053 (37.9) | 2.18 | 1.86 to 2.56 |
| Missing | 15 (0.7) | 2 (0.1) | ||
| Lung cancer histology | ||||
| Squamous | 787 (34.8) | – | ||
| Small cell | 333 (14.7) | – | ||
| Adenocarcinoma | 778 (34.4) | – | ||
| Non-small cell | 199 (8.8) | – | ||
| Other | 147 (6.5) | – | ||
| Multiple phenotype§ | 16 (0.7) | – | ||
*Participants with at least one known exposure were kept (5 cases were excluded).
†OR adjusted for age at interview and département.
‡p Value derived from Student t test (two sided).
§Multiple phenotype corresponds to tumours with several histological entities.