Table II.
Comorbidities identified using the Charlson comorbidity index for lung cancer-specific and other-cause mortality.
| Comorbidity | Lung cancer mortality, n (%) (n=886) |
Other-cause mortality, n (%) (n=875) |
P-valuea |
|---|---|---|---|
| Acute myocardial infarct | 39 (4.4) | 139 (15.9) | 0.01 |
| Congestive heart failure | 19 (2.1) | 149 (17.0) | 0.0003 |
| Peripheral vascular disease | 77 (8.7) | 127 (14.5) | <0.0001 |
| Cerebrovascular disease | 30 (3.4) | 102 (11.5) | 0.13 |
| Dementia | 1 (0.1) | 28 (3.2) | 0.05 |
| Chronic pulmonary disease | 274 (30.9) | 354 (40.5) | <0.0001 |
| Rheumatic disease | 23 (2.6) | 36 (4.1) | 0.55 |
| Peptic ulcer | 17 (1.9) | 43 (4.9) | 0.88 |
| Mild liver disease | 13 (1.5) | 41 (4.7) | 0.40 |
| Diabetes without complications | 91 (10.3) | 153 (17.5) | 0.54 |
| Diabetes with complications | 7 (0.8) | 20 (2.3) | 0.15 |
| Hemiplegia/paraplegia | 10 (1.1) | 30 (3.4) | 0.59 |
| Renal disease | 11 (1.2) | 106 (12.1) | 0.04 |
| Lymphoma/leukaemia | 57 (6.4) | 338 (38.6) | 0.002 |
| Moderate or severe liver disease | 4 (0.5) | 12 (1.4) | 0.23 |
| Metastatic solid tumour | 220 (24.8) | 199 (22.7) | <0.0001 |
| lymphoma | 3 (0.3) | 24 (2.7) | 0.25 |
| Leukaemia | 2 (0.2) | 8 (0.9) | 0.69 |
| Autoimmune deficiency syndrome | - | - | - |
a
P-values derived from the log-rank test.