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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

VariableHazard ratio95% Confidence intervalp-value
Age1.0461.019–1.0740.001
Clinical staging  0.013
 I
 II0.4800.246–0.9330.030
 III1.2260.512–2.9370.647
 IV1.7591.004–3.0830.048
Neutropenia2.6201.562–4.396< 0.001
Smoking2.0401.100–3.7840.024
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