Five year relative and observed survival in patients diagnosed and undergoing surgery in 1993–9 (n = 2144)
| No of patients | Survival | 95% CI of relative survival | ||
|---|---|---|---|---|
| Observed (%) | Relative (%) | |||
| CI, confidence interval; VATS, video assisted thoracic surgery. | ||||
| Total | 2144 | 40.6 | 46.4 | 44.0 to 48.8 |
| Sex | ||||
| Female | 741 | 51.7 | 55.8 | 51.9 to 59.7 |
| Male | 1403 | 34.8 | 41.0 | 38.1 to 43.9 |
| Age (years) | ||||
| <50 | 217 | 55.2 | 55.9 | 49.2 to 62.6 |
| 50–59 | 421 | 46.2 | 47.9 | 43.0 to 52.8 |
| 60–69 | 775 | 41.1 | 45.5 | 41.6 to 49.4 |
| 70–79 | 687 | 33.2 | 42.9 | 38.4 to 47.4 |
| 80–89 | 44 | 22.7 | 41.6 | 18.9 to 64.3 |
| Side | ||||
| Left | 966 | 41.5 | 47.4 | 43.9 to 50.9 |
| Right | 1178 | 39.9 | 45.6 | 42.5 to 48.7 |
| Surgical procedure | ||||
| Upper lobectomy | 702 | 48.8 | 55.6 | 51.5 to 59.7 |
| Middle lobectomy | 60 | 53.3 | 61.8 | 47.1 to 76.5 |
| Lower lobectomy | 473 | 44.0 | 51.3 | 46.0 to 56.6 |
| Bilobectomy | 202 | 43.1 | 49.2 | 41.4 to 57.0 |
| Pneumonectomy | 589 | 26.3 | 29.5 | 25.6 to 33.4 |
| Sublobar resection | 118 | 39.0 | 46.3 | 35.9 to 56.7 |
| Surgical technique | ||||
| Open thoracotomy | 2089 | 40.4 | 46.2 | 43.8 to 48.6 |
| VATS | 55 | 47.3 | 54.2 | 39.1 to 69.3 |
| Resection margin | ||||
| Free | 1993 | 42.0 | 48.0 | 45.5 to 50.5 |
| Involved | 142 | 23.2 | 26.2 | 18.4 to 34.0 |
| Possibly involved or not described | 9 | 11.1 | 13.7 | 0.0 to 39.0 |
| Histopathology type | ||||
| Squamous cell | 804 | 37.9 | 44.5 | 40.6 to 48.4 |
| Adenocarcinoma | 783 | 36.1 | 40.7 | 37.0 to 44.4 |
| Bronchioloalveolar | 72 | 59.7 | 68.0 | 55.1 to 80.9 |
| Carcinoid | 102 | 94.1 | 99.0 | 94.1 to 103.9 |
| Small cell | 33 | 42.4 | 49.3 | 29.7 to 68.9 |
| Large cell | 150 | 36.7 | 41.5 | 32.7 to 50.3 |
| Other | 200 | 37.5 | 42.7 | 35.1 to 50.3 |
| pStage | ||||
| I | 1375 | 50.8 | 58.4 | 55.3 to 61.5 |
| Ia | 559 | 63.5 | 71.9 | 67.4 to 76.4 |
| Ib | 816 | 42.1 | 48.9 | 45.0 to 52.8 |
| II | 532 | 25.1 | 28.4 | 24.3 to 32.5 |
| IIa | 122 | 28.7 | 32.0 | 23.0 to 41.0 |
| IIb | 410 | 24.0 | 27.4 | 22.7 to 32.1 |
| III | 196 | 15.8 | 17.9 | 12.0 to 23.8 |
| IIIa | 133 | 13.5 | 15.1 | 8.6 to 21.6 |
| IIIb | 63 | 20.6 | 24.1 | 12.5 to 35.7 |
| IV | 41 | 19.5 | 21.1 | 8.0 to 34.2 |
| Hospital volume | ||||
| <20 | 869 | 41.5 | 47.8 | 44.1 to 51.5 |
| ⩾20 | 1274 | 40.0 | 45.5 | 42.3 to 48.5 |
| Tumour size (cm) | ||||
| ⩽3 | 857 | 51.6 | 58.3 | 54.6 to 62.0 |
| >3–5 | 710 | 37.8 | 43.7 | 39.6 to 47.8 |
| >5 | 498 | 25.1 | 28.9 | 24.6 to 33.2 |
| Unknown | 79 | 44.3 | 49.9 | 37.6 to 62.2 |