Table 1. Characteristics of the study groups.

Variable	Serum sample (vitamin D)		Serum sample (cathelicidin)		Tissue sample
	Patient	Control	Patient	Control	Patient	Control
Total	34	34	34	13	38	11
Age (yr)	48.7±7.7	49.7±8.1	48.7±7.7	36.0±4.7	46.8±7.9	32.1±18.0
Sex
Male	2	2	2	0	6	3
Female	32	32	32	13	32	11

Values are presented as number only or mean±standard deviation.