Table 2.

Multivariable Models of Lung Re-Expansion and Mortality after Palliative Radiotherapy for Pulmonary Obstruction

	Re-expansion a			Overall mortality b
	Hazard ratio	95% confidence interval	p	Hazard ratio	95% confidence interval	p
Age	0.99	0.96–1.02	0.60	1.00	0.98–1.03	0.77
Histology (vs. NSCLC)
SCLC	0.83	0.21–3.23	0.78	1.06	0.50–2.25	0.88
Metastasis	0.89	0.31–2.57	0.84	0.34	0.14–0.82	0.02
ECOG 3–4 (vs. 1–2)	0.71	0.30–1.70	0.44	2.70	1.57–4.66	<0.01
Extent of obstruction (entire lung vs. lobar)	1.76	0.50–6.12	0.38	0.89	0.43–1.84	0.75
Tumor size <6 cm (vs. ≥6 cm)	2.16	0.92–5.09	0.08	0.53	0.29–0.95	0.03
Inpatient (vs. outpatient)	0.44	0.17–1.12	0.08	1.74	0.94–3.20	0.08
Obstruction 30+ days (vs. <30 days)	0.58	0.24–1.41	0.23	0.51	0.29–0.93	0.03
No. of fractions (vs. 1)
2–5	2.31	0.54–9.96	0.26	0.34	0.15–0.77	0.01
10	2.41	0.69–8.36	0.17	0.24	0.11–0.50	<0.01
Re-expansion	—	—	—	0.28	0.15–0.52	<0.01

^aCompeting risk regression.

^bCox proportional hazards.