TABLE 1.

Frequency of Drug Use as a Function of Stimulant Treatment in Childhood

Measure	Untreated (N = 21)		Treated (N = 98)		F	P	Eta²
	Mean	SD	Mean	SD
Current alcohol/drug use
Average no. of alcoholic drinks per wk	5.8	8.0	11.2	17.8
Raw
Transformed	0.62	0.44	0.66	0.62	0.08	NS	0.001
No. of times gotten drunk in past 3 mo	3.8	5.9	6.4	13.4
Raw
Transformed	0.42	0.46	0.47	0.54	0.152	NS	0.001
No. of times used drugs in past 3 mo	6.0	19.7	10.6	25.7
Raw
Transformed	0.33	0.52	0.41	0.65	0.30	NS	0.003
Lifetime frequencies for
Cocaine
Raw	0.1	0.2	15.8	91.5
Transformed	0.01	0.06	0.25	0.55	3.64	NS	0.030
Amphetamines/speed
Raw	3.6	15.5	5.6	16.8
Transformed	0.13	0.42	0.23	0.53	0.60	NS	0.003
Any stimulant
Raw	3.6	15.5	21.3	99.9
Transformed	0.14	0.43	0.36	0.68	2.16	NS	0.018
Marijuana
Raw	185.1	289.2	220.9	310.3
Transformed	1.3	1.1	1.3	1.2	0.01	NS	0.000
Hallucinogens
Raw	2.6	7.2	5.5	10.9
Transformed	0.27	0.41	0.35	0.57	0.37	NS	0.003
Narcotics
Raw	0.0	0.0	0.4	3.0
Transformed	0.00	0.00	0.03	0.18	0.51	NS	0.004
Sedatives
Raw	0.0	0.0	2.1	8.8
Transformed	0.00	0.00	0.11	0.37	1.89	NS	0.016
Other Drugs
Raw	2.5	11.1	1.9	7.8
Transformed	0.10	0.38	0.11	0.36	0.05	NS	0.000

NS indicates not significant.
“Any stimulant” reflects a summation of cocaine with amphetamine use.