Summary of ratings of overall effects of drug use by current users (Percent)

United States 1974: Males aged 20 - 30 O'Donnell et al., 1976:79				Ontario 1994: Both sexes aged 18 - 34 Bondy, 1994
RESPONSES	LIFETIME USERS OF:			RESPONSES	CURRENT USERS OF:
	ALCOHOL	TOBACCO	MARIJUANA OR HASHISH		ALCOHOL	TOBACCO	MARIJUANA OR HASHISH
Total N	(2434)	(2211)	(1382)	Total	(601)	(256)	(121)
"Very good" or "more good than bad"	33	12	45	More good than harm	19	3	29
No effect	21	22	22	Harm and good about equal	70	7	59
"More bad than good" or "very bad"	46	66	33	More harm than good	11	50	12