Table 1.

Demographics

	HC	BT-1	BT-2	BT-3	Statistic	p
N	129	195	131	167
Mean age	40	41	39	35	F(3,613) = 7.64***	<.001
Age SD	11.08	10.75	11.05	11.92
Sex (% F/M)	44/66	57/43	43/57	52/48	x2(3) = 8.96*	.03
N from each site
Boston	24	16	21	23
Chicago	34	68	18	66
Dallas	16	14	16	9
Georgia+	32	42	35	25
Hartford	23	55	41	44

Note. HC = Healthy comparisons, BT-1 = Biotype-1, BT-2 = Biotype-2, BT-3 = Biotype-3.

⁺Participants recruited from Athens, GA and Augusta, GA.