Table 3. Influence of variables on HIF expression.

	OR	CI	p
Pack-Year	0.96	0.91–1.05	0.50
Age	0.95	0.85–1.04	0.23
ECOG PS	2.93	0.62–14.21	0.18
Bone metastases	8.04	1.42–44.10	0.01
Histotype	0.94	0.81–7.82	0.11