Alarming symptoms and tumour cell type#
| Symptoms | Adenocarcinoma n (%) | Squamous cell n (%) | Small cell n (%) |
| No symptom (casual discovery) | 57 (20.6) | 40 (8.1) | 14 (9.7) |
| Cough | 51 (18.4) | 95 (19.2) | 19 (13.2) |
| Bloody sputum | 37 (13.4) | 119 (24.0) | 15 (10.4) |
| Dyspnoea | 32 (11.6) | 52 (10.5) | 28 (19.4) |
| Chest pain | 38 (13.7) | 53 (10.7) | 28 (19.4) |
| Chest infection | 14 (5.1) | 55 (11.1) | 9 (6.3) |
| Systemic symptoms | 24 (8.7) | 51 (10.3) | 11 (7.6) |
| Symptoms of local or distant dissemination | 24 (8.7) | 31 (6.3) | 20 (13.9) |
#: test of independence for a multi-way contingency table: Chi-squared=89.862; p=0.000