Table 3:

Post-surgery survival by surveillance intensity in patients alive and disease free 9 months post-surgery.

	HR (95% CI)	p-value
Surveillance group: 3-month	(reference)	0.091
6-month	1.12 (0.98, 1.29)
Histology: Adenocarcinoma	(reference)	0.991
Squamous	0.99 (0.86, 1.14)
Other histology	1.00 (0.80, 1.26)
Surgery: Lobectomy	(reference)	0.010
Pneumonectomy	0.95 (0.70, 1.30)
Segmentectomy	1.39 (0.86, 2.26)
Wedge resection	1.34 (1.12, 1.60)
Any chemotherapy	1.01 (0.86, 1.20)	0.976
Any radiation	1.39 (1.11, 1.72)	< 0.001
Age (per decade)	1.23 (1.12, 1.36)	< 0.001
Sex: Male	(reference)	0.011
Female	0.84 (0.73, 0.96)
Chronic obstructive pulmonary disease	1.17 (1.00, 1.37)	0.054
Congestive heart failure	1.50 (1.14, 1.97)	0.003
Coronary artery disease	1.11 (0.94, 1.31)	0.215
Diabetes	1.07 (0.90, 1.29)	0.435
Peripheral vascular disease	1.37 (1.09, 1.72)	0.007
Psychiatric	1.20 (0.95, 1.51)	0.133
Substance abuse	1.32 (1.03, 1.70)	0.029