Table 1. Participants' Demographic Information.

	Minocycline (N=28)	Placebo (N=22)
Age (years; mean, sd)	42.9 (14.2)	42.5 (11.2)
Race, n (%)	White/Caucasian 18 (64%)	White/Caucasian 12 (55%)
	Black/African American 8 (29%)	Black/African American 8 (36%)
Number of male patients	20 (71%)	17 (77%)
Age of Illness Onset (years; mean, sd)	17.8 ± 6.5	18.6 ± 5.6
Inpatients, n (%)	11 (39%)	6 (27%)
Current smoker*, n (%)	15 (54%)	5 (23%)
Number of cigarettes smoked daily (mean, sd)	8.1 (5.5)	13.0 (5.7)

^*p<0.05