Table 1.

The composition of the subject panel.

Characters		Groups		χ2/t	P
		Lung cancer (n)	Control (n)
Sex	Male	36	39	1.057	0.304
	Female	21	33
Age	χ̄±s	58.34±14.35	46.38±9.72	6.022	<0.001
Smoker status	Smoker	22	25	0.206	0.649
	Nonsmoker	35	47