Table 2.

Multivariate results for sociodemographic characteristics relating to reasons for not using or for stopping marijuana use among high school seniors who do not plan on using in the next 12 months, 1977-2005, by gender

Reason	Never users				Quitters				Continuing users
	Female	Male			Female	Male			Female	Male
	% (ref.)	%	OR	P	% (ref.)	%	OR	P	% (ref.)	%	OR	P
Negative consequences
Concerned about psychological damage	71.3	68.1	0.84	‡	59.6	53.9	0.77	‡	49.1	44.3	0.82	†
Concerned about physical damage	70.2	67.6	0.86	‡	56.9	54.2	0.88	*	47.6	47.6	0.93
Parents would disapprove	63.9	59.8	0.83	‡	55.5	51.6	0.86	†	51.5	51.5	0.96
Might lead to stronger drugs	57.1	56.3	0.97		49.1	47.0	0.91		36.6	36.6	0.94
Possible loss of control of myself	58.7	51.3	0.74	‡	46.9	37.6	0.67	‡	37.4	37.4	0.67	‡
Concerned about becoming addicted	55.4	54.5	0.96		43.9	38.0	0.77	‡	33.8	33.8	0.82	‡
Concerned about getting arrested	43.3	52.2	1.42	‡	39.4	45.1	1.27	‡	37.8	37.8	1.25	‡
Loss of energy or ambition	35.7	40.4	1.22	‡	33.0	34.8	1.09		31.0	31.0	1.04
Partner would disapprove	33.7	32.5	0.94	*	39.7	34.3	0.78	‡	30.3	30.3	0.94
I might have a bad trip	24.8	25.4	1.03		24.8	19.2	0.71	‡	20.3	20.3	0.67	‡
Lack of interest/impractical
Don't feel like getting high	64.9	61.7	0.85	‡	66.5	58.4	0.70	‡	61.3	61.3	0.62	‡
Not enjoyable	19.4	21.6	1.18	‡	60.1	48.5	0.62	‡	45.8	45.8	0.63	‡
Too expensive	21.0	29.3	1.52	‡	22.1	28.4	1.40	‡	20.1	20.1	1.54	‡
Not available	6.7	7.9	1.19	‡	4.2	5.3	1.28	*	4.5	4.5	1.03
Personal beliefs/peer influences
Against my beliefs	65.3	58.3	0.72	‡	37.6	35.1	0.89	*	23.1	23.1	0.90	*
Don't like being with users	53.0	47.0	0.77	‡	38.2	31.9	0.74	‡	21.2	21.2	0.77	‡
Friends don't use it	45.1	38.9	0.74	‡	32.9	26.0	0.70	‡	16.6	16.6	0.76	†

Notes: Model information: never users (n = 31,180); quitters (n = 6,980); continuing users (n = 7,920). All models simultaneously control for race/ethnicity and individual year dummies. OR = odds ratio.

^* p < .05;

^† p < .01;

^‡ p < .001.