Table 3.
Survival in IGF1R-positive and -negative patients according to clinical characteristics
| Characteristic | IGF1R+ (N/months) | IGF1R− (N/months) | P value |
| All | 282/52 | 87/48 | 0.99 |
| Female | 38/42 | 15/NR | 0.51 |
| Male | 244/55 | 72/46 | 0.75 |
| Never smokers | 21/42 | 9/NR | 0.78 |
| Smokers (former + current) | 248/49 | 77/46 | 0.78 |
| Adenocarcinoma + bronchioloalveolar | 133/49 | 52/44 | 0.93 |
| Squamous cell carcinoma | 109/NR | 23/48 | 0.45 |
| Other histology | 40/21 | 12/30 | 0.21 |
| Grade I–II | 168/56 | 64/49 | 1.0 |
| Grade III | 104/38 | 21/27 | 0.70 |
| Stage I–II | 198/NR | 57/NR | 0.85 |
| Stage III | 84/21 | 30/24 | 0.53 |
IGF1R, insulin-like growth factor receptor 1; NR, not reached.