Demographic information
| . | Case (988) n (%) . | Control (1128) n (%) . |
|---|---|---|
| Age | ||
| <50 | 106 (11) | 313 (28) |
| 50–54 | 88 (9) | 128 (11) |
| 55–59 | 114 (12) | 134 (12) |
| 60–64 | 152 (15) | 151 (13) |
| 65–69 | 184 (19) | 191 (17) |
| ≥70 | 344 (35) | 211 (19) |
| Gender | ||
| Male | 538 (54) | 525 (47) |
| Female | 450 (46) | 603 (53) |
| Smoking | ||
| Never-smoker | 63 (6) | 403 (36) |
| Ex-smoker | 519 (53) | 506 (45) |
| Years quit < 15 | 307 (59) | 203 (40) |
| Years quit ≥ 15 | 212 (41) | 303 (60) |
| Current smoker | 406 (41) | 219 (19) |
| Pack-years < 35 | 78 (19) | 118 (54) |
| Pack-years 35–64 | 148 (37) | 65 (30) |
| Pack-years ≥ 60 | 180 (44) | 36 (16) |
| Type of Control (11 missing) | ||
| Spouse | 354 (32) | |
| Friend | 763 (68) | |
| Histologic cell type (24 missing) | ||
| Adenocarcinoma | 472 (50) | |
| Squamous cell carcinoma | 225 (24) | |
| Large cell carcinoma | 77 (8) | |
| Small cell carcinoma | 88 (9) | |
| Other/not specified | 84 (9) | |
| Stage (31 missing) | ||
| Early stage (I/II) | 529 (56) | |
| Late stage (III/IV) | 410 (44) |
| . | Case (988) n (%) . | Control (1128) n (%) . |
|---|---|---|
| Age | ||
| <50 | 106 (11) | 313 (28) |
| 50–54 | 88 (9) | 128 (11) |
| 55–59 | 114 (12) | 134 (12) |
| 60–64 | 152 (15) | 151 (13) |
| 65–69 | 184 (19) | 191 (17) |
| ≥70 | 344 (35) | 211 (19) |
| Gender | ||
| Male | 538 (54) | 525 (47) |
| Female | 450 (46) | 603 (53) |
| Smoking | ||
| Never-smoker | 63 (6) | 403 (36) |
| Ex-smoker | 519 (53) | 506 (45) |
| Years quit < 15 | 307 (59) | 203 (40) |
| Years quit ≥ 15 | 212 (41) | 303 (60) |
| Current smoker | 406 (41) | 219 (19) |
| Pack-years < 35 | 78 (19) | 118 (54) |
| Pack-years 35–64 | 148 (37) | 65 (30) |
| Pack-years ≥ 60 | 180 (44) | 36 (16) |
| Type of Control (11 missing) | ||
| Spouse | 354 (32) | |
| Friend | 763 (68) | |
| Histologic cell type (24 missing) | ||
| Adenocarcinoma | 472 (50) | |
| Squamous cell carcinoma | 225 (24) | |
| Large cell carcinoma | 77 (8) | |
| Small cell carcinoma | 88 (9) | |
| Other/not specified | 84 (9) | |
| Stage (31 missing) | ||
| Early stage (I/II) | 529 (56) | |
| Late stage (III/IV) | 410 (44) |