Table 2 Cox multivariate proportional hazard analysis for pneumonia development in lung cancer patients
From: Smoking is associated with pneumonia development in lung cancer patients
Variable | Hazard ratio | 95% Confidence interval | p-value |
|---|---|---|---|
Age | 1.046 | 1.019–1.074 | 0.001 |
Clinical staging | Â | Â | 0.013 |
 I | |||
 II | 0.480 | 0.246–0.933 | 0.030 |
 III | 1.226 | 0.512–2.937 | 0.647 |
 IV | 1.759 | 1.004–3.083 | 0.048 |
Neutropenia | 2.620 | 1.562–4.396 | < 0.001 |
Smoking | 2.040 | 1.100–3.784 | 0.024 |