Table 7.

—Univariate Cox and Extended Cox Models for Time to Death

Characteristic	Hazard Ratio	95% CI	P Value
Age (continuous)	1.01	0.99-1.03	.41
Sex: male vs female	1.23	0.59-2.55	.59
Days from initial therapy to bronchoscopy	1.00	0.99-1.00	.29
ECOG ≥ 2	2.21	1.09-4.47	.03
Ever smoked	1.61	0.72-3.59	.25
COPD	0.56	0.17-1.84	.34
Congestive heart failure history	0.79	0.11-5.81	.82
Primary lung cancer vs metastatic disease	1.75	0.87-3.53	.12
Chemotherapy prior to bronchoscopy	1.70	0.73-3.93	.22
Chemotherapy after bronchoscopy	0.21	0.10-0.45	< .001
Radiation prior to bronchoscopy	1.87	0.93-3.78	.08
Radiation after bronchoscopy	0.70	0.34-1.46	.35
Stent placed initially	2.87	1.40-5.89	.004
Baseline airway obstruction > 50%	1.94	0.89-4.20	.09
Infection: yes vs no (time varying)	11.07	3.84-31.96	< .001

See Table 4 legend for expansion of abbreviations.