Relationship between clinicopathological features and AAH groups
| Features | Total | AAH(−) | AAH(+) (single/multiple) | OR (95% CI)3-150 |
| No of cases | 508 | 390 | 118 (71/47) | |
| Sex | ||||
| Male | 324 | 257 | 67 (38/29) | 1.47 (0.97 to 2.24) |
| Female | 184 | 133 | 51 (33/18) | |
| Age (years) | ||||
| ⩾65 | 252 | 193 | 59 (38/21) | 1.02 (0.68 to 1.54) |
| <65 | 256 | 197 | 59 (33/26) | |
| Smoking status | ||||
| Never smokers | 167 | 127 | 40 (26/14) | 1.06 (0.69 to 1.64) |
| Smokers | 341 | 263 | 78 (45/33) | |
| Ex-smokers | 128 | 100 | 28 (16/12) | |
| ⩽20 pack-years smoked | 29 | 19 | 10 (4/6) | |
| >20 pack-years smoked | 99 | 81 | 18 (12/6) | |
| Current smokers | 213 | 163 | 50 (29/21) | |
| ⩽20 pack-years smoked | 17 | 11 | 6 (4/2) | |
| >20 pack-years smoked | 196 | 152 | 44 (25/19) | |
| Histology3-151 | ||||
| Adenocarcinoma | 328 | 232 | 96 (54/42) | 2.97 (1.82 to 4.85) |
| Non-adenocarcinoma | 180 | 158 | 22 (17/5) | |
| Squamous | 122 | 110 | 12 (9/3) | |
| Large cell | 17 | 15 | 2 (1/1) | |
| Small cell | 13 | 12 | 1 (1/0) | |
| Adenosquamous | 28 | 21 | 7 (6/1) | |
| No. of lung carcinoma | ||||
| Single | 473 | 371 | 102 (65/37) | 3.06 (1.56 to 6.00) |
| Multiple | 35 | 19 | 16 (6/10) | |