Clinical features | Univariate analysis | Multivariate analysis—maximal model | Multivariate analysis—reduced model | |||
---|---|---|---|---|---|---|
HR (95 % CI) | p value | HR (95 % CI) | p value | HR (95 % CI) | p value | |
Port type (TYCO vs. Bard) | 4.759 (1.137–19.927) | 0.0327 | 7.643 (1.795–32.535) | 0.0059 | 7.105 (1.688–29.904) | 0.0075 |
Gender (male vs. female) | 2.849 (1.408–5.766) | 0.0036 | 1.974 (0.934–4.172) | 0.0748 | ||
Age (>65 vs. ≤65 years) | 2.262 (1.154–4.436) | 0.0175 | 2.083 (1.043–4.157) | 0.0375 | 2.320 (1.179–4.564) | 0.0148 |
Malignancy (lung cancer vs. others) | 5.121 (2.610–10.050) | <0.0001 | 4.885 (2.362–10.104) | <0.0001 | 5.807 (2.946–11.447) | <0.0001 |
Surgeon (surgeon A vs. others) | 0.862 (0.273–2.718) | 0.8000 | 0.872 (0.271–2.810) | 0.8184 | ||
Surgeon (surgeon B vs. others) | 0.508 (0.171–1.511) | 0.2234 | 0.86 (0.285–2.594) | 0.7887 |