Table 1.

Subject characteristics (mean±SD (range).

N	23
Male/female	22/1
Age (years)	38.5±11.4 (21–52)
(WASI*, vocabulary subscore)	53.0±9.2 (32–68)
Years cocaine use	19.7±9.5 (4–32)
Years drug use	24.6±11.9 (8–40)
Longest lifetime period of	30.9±26.7
abstinence (months)	(2–117)
Time since last use (months)	28.0±27.8 (0.5–117)
BDI**	8.4±6.6 (0–24)

^*Wechsler abbreviated scale of intelligence.

^**Beck depression inventory.