Table 3.

Level of alcohol use and drug and alcohol use at entrance and exit

Variable	Entrance data: All entrance (n = 361) %	Entrance data: Entrance and exit only (n = 277) %	Exit data: Entrance and exit only (n = 277) %
Alcohol
No alcohol	56.0	57.0	38.7
Some (BAC < .08)	25.5	26.7	29.7
Intoxicated (BAC ≥ .08)	18.6	16.2	32.6
Drugs and alcohol
Neither drugs nor alcohol	42.1	45.1	27.2
Either drugs or alcohol	47.4	45.8	58.1
Both	10.5	9.0	14.7
Drugs and intoxicated (BAC ≥ .08)	3.3	2.9	7.2

Note: BAC = blood alcohol concentration.