. Author manuscript; available in PMC: 2017 Feb 7.

Published in final edited form as: Ann Otol Rhinol Laryngol. 2015 Apr 16;124(10):765–769. doi: 10.1177/0003489415582259

Table 1.

Comparison of patients in the HNC-LC and LC cohorts.

	Cohort
Characteristic	HNC-LC	LC	P value
Total	915	72074
Male, %	694 (75.9%)	38539 (53.5)	<0.0001
Mean age, HNC dx (s.d.)	60.4 (6.0)	N/A
Mean age, lung dx (s.d.)	65.9(5.3)	66.0 (5.4)	0.80
Stage, lung cancer
1a	420 (45.9%)	27448 (38.1%)
1b	452 (49.4)	41199 (57.2)	<0.0001
2b	43 (4.7)	3427 (4.8)
Lung cancer histology
Squamous	479 (52.4%)	20727 (28.8%)
Adenocarcinoma	247 (27.0)	32175 (44.6)	<0.0001
Epithelial neoplasm NOS	145 (15.9)	14787(20.5)
Other	44 (4.8)	4385 (6.1)

HNC-LC cohort: head and neck cancer followed at least 12 months later by an early stage lung cancer. LC cohort: single lung cancer. In both cohorts, lung cancers were diagnosed between ages 55 and 74 years.

NOS, not otherwise specified.