. Author manuscript; available in PMC: 2018 Jan 1.

Published in final edited form as: J Child Adolesc Subst Abuse. 2016 Aug 24;26(1):60–65. doi: 10.1080/1067828X.2016.1210550

Table 1.

Past 30-day use of substances by grade and rurality status.

Substance	6^th Grade		7^th Grade		8^th Grade		9^th Grade		10^th Grade		11^th Grade		12^th Grade

	U	R	U	R	U	R	U	R	U	R	U	R	U	R
Alcohol	2.7%	3.6%^***	4.6%	5.9%^***	7.9%	9.7%^***	13.2%	15.6%^***	17.4%	19.8%^***	21.7%	23.1%^**	26.3%	22.7%^***
Smoking Tobacco	1.2%	1.9%^***	2.0%	3.5%^***	3.6%	5.9%^***	6.2%	8.7%^***	8.2%	11.3%^***	10.6%	13.9%^***	14.9%	15.1%
Chewing Tobacco	0.8%	1.5%^***	1.1%	2.5%^***	2.0%	4.0%^***	3.6%	6.6%^***	4.4%	7.9%^***	5.2%	8.1%^***	6.4%	8.3%^***
Marijuana	1.0%	1.1%	2.6%	2.6%	5.3%	5.4%	9.6%	8.7%^***	12.3%	11.6%^*	15.0%	13.3%^***	17.5%	12.2%^***
Cocaine	0.5%	0.6%	0.7%	0.6%	1.1%	1.0%	1.8%	1.4%^**	2.3%	1.8%^***	2.7%	2.2%^**	3.6%	2.3%^***
Inhalants	1.0%	1.0%	1.2%	1.2%	1.5%	1.4%	2.0%	1.8%	2.2%	1.8%^*	2.5%	2.0%^**	3.1%	2.1%^***
Steroids	0.7%	0.8%	0.8%	0.8%	1.1%	1.1%	1.7%	1.5%	2.0%	1.6%^**	2.4%	2.0%^*	2.9%	2.2%^***
Ecstasy	0.4%	0.4%	0.6%	0.5%	1.0%	0.9%	1.9%	1.5%^***	2.4%	1.9%^**	3.0%	2.1%^***	3.9%	2.2%^***
Meth	0.6%	0.6%	0.6%	0.5%	0.8%	0.7%	1.5%	1.3%	1.7%	1.4%^*	2.2%	1.7%^**	2.8%	1.8%^***
Hallucinogens	0.4%	0.4%	0.5%	0.4%	0.9%	0.7%	1.7%	1.3%^***	2.2%	1.6%^***	2.8%	1.9%^***	3.6%	1.9%^***
Prescription Drugs	1.5%	1.6%	1.8%	2.1%^*	2.5%	2.5%	3.9%	3.7%	5.1%	4.8%	5.7%	5.2%	6.4%	4.7%^***

Notes: % of students who endorsed use in the past 30 days;

Difference is significant at p < .05;

^**

p < .01;

^***

p < .0001.