Table 1.

Means, Standard Deviations, and Sample Sizes for Eighth-Grade Adolescent Tobacco, Alcohol, and Other Substance Use

	Male adolescents			Female adolescents			Total sample
Substance use outcome	M	SD	n	M	SD	n	M	SD	n
Cigarettes
Past year	0.19 *	0.76	376	0.35 *	0.96	397	0.27	0.87	773
Subjective norms	1.20 ***	1.06	378	1.55 ***	1.13	397	1.38	1.11	775
Alcohol
Past year	0.57	0.94	375	0.78	0.98	397	0.68	0.96	772
Binge drink until sick or fall	1.07 *	0.35	378	1.12 *	0.39	396	1.10	0.37	774
Subjective norms	1.43 ***	1.29	378	1.85 ***	1.34	396	1.64	1.33	774
Marijuana
Past year	0.23	0.73	375	0.29	0.82	397	0.26	0.78	772
Subjective norms	1.14 ***	1.24	378	1.47 ***	1.24	397	1.31	1.25	775
Inhalants
Past year	0.04	0.33	378	0.09	0.44	397	0.07	0.39	775
Subjective norms	0.43 ***	0.69	378	0.68 ***	0.84	397	0.56	0.78	775

Note. Values in bold mark significant gender differences.

^*p < .05.

^***p < .001.