Table I.

Patient demographics.

Characteristic	Lung cancer patients	Healthy controls
Total, n	83	107
Sex, n	56/27a	60/47a
Age, yearsb	66 (25–82)	56 (21–78)
Cancer stage, n
Stage I	13	–
Stage II	10	–
Stage III	33	–
Stage IV	27	–

^aMale/female.

^bData are presented as the median and range.