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. Author manuscript; available in PMC: 2013 Apr 3.

Published in final edited form as: Lung Cancer. 2011 Nov 22;76(2):248–252. doi: 10.1016/j.lungcan.2011.10.009

Table 3.

Association between exercise behavior and survival (n = 68).

Analysis	MET-hrs wk⁻¹
	<9 MET-hrs wk⁻¹		≥9 MET-hrs wk⁻¹		Likelihood ratio P
No. of events	19		16
No. at risk	31		37
Median, months	12.89	9.11–21.05	25.63	11.28–∞^*
Unadjusted, HR	Referent		0.51	0.26–1.01	0.052
Adjusted,^a HR	Referent		0.60	0.30–1.22	0.159
Adjusted,^b HR	Referent		0.67	0.31–1.48	0.324

Abbreviations: HR, hazard ratio.

^a

Adjusted for performance status (ECOG).

^b

Adjusted for age, gender, and performance status (ECOG).

^*

The upper confidence limit of the median could not be calculated due to insufficient follow-up time.