Table 1.

General characteristics of the control group, lung cancer patients, and schizophrenia patients.

Characteristic	Lung cancer patients	Schizophrenia patients	Control group
Males n (%)	90	54	59
Females n (%)	10	46	41
Age, mean (SD), years	60.7 ± 10.8	37.2 ± 10.0	50.3 ± 17.4
Smoking status	n	n	n
Smokers	88	94	43
Nonsmokers	12	6	57
Alcohol consumption	n	n	n
Drinking	34	30	12
Nonalcoholic	66	70	88