Table I.

Demographic characteristics of subjects in 2015 data set.

Characteristic	Lung cancer patients	Controls	P-value
Patients, n	40	100
Age, years			0.216a
Mean	66.7	64.1
Median	66	62
Minimum	49	41
Maximum	83	90
Sex, n (%)			>0.999b
Male	26 (65)	65 (65)
Female	14 (35)	35 (35)

P-values were derived from

^aMann-Whitney U-tests

^bχ² tests.