1998 National Household Survey on Drug Abuse:  Population Estimates

Marijuana - Region

Table 3E. Marijuana Use by Age Group and Gender for Northeast Region in 1998

AGE/ /GENDER	Ever Used					Used Past Year					Used Past Month
	Observed Estimate	95% C.I.				Observed Estimate	95% C.I.				Observed Estimate	95% C.I.
RATE ESTIMATES (Percent)
AGE
12-17	17.9	(14.7	-	21.7)		15.4	(12.4	-	19.1)		8.3	(6.1	-	11.2)
18-25	43.7	(38.1	-	49.5)		22.4	(18.5	-	26.8)		12.8	(9.8	-	16.6)
26-34	55.1	(50.2	-	59.9)		9.9	(7.4	-	13.1)		5.4	(3.7	-	7.9)
$35	29.2	(24.8	-	34.0)		4.1	(2.6	-	6.5)		2.4	(1.3	-	4.7)
GENDER
Male	39.2	(34.6	-	44.0)		10.5	(8.2	-	13.2)		6.2	(4.6	-	8.3)
Female	29.1	(25.4	-	33.2)		6.3	(5.0	-	7.8)		3.3	(2.4	-	4.6)
TOTAL	33.9	(30.8	-	37.2)		8.3	(6.7	-	10.2)		4.7	(3.6	-	6.1)

POPULATION ESTIMATES (In Thousands)

AGE
12-17	728	(597	-	882)		627	(504	-	774)		337	(247	-	455)
18-25	2,162	(1,884	-	2,449)		1,106	(915	-	1,325)		635	(486	-	820)
26-34	3,709	(3,379	-	4,033)		666	(499	-	880)		363	(246	-	531)
$35	7,768	(6,610	-	9,037)		1,098	(692	-	1,726)		651	(337	-	1,244)
GENDER
Male	7,890	(6,970	-	8,851)		2,103	(1,651	-	2,661)		1,247	(926	-	1,669)
Female	6,477	(5,648	-	7,374)		1,394	(1,115	-	1,738)		738	(531	-	1,022)
TOTAL	14,368	(13,052	-	15,744)		3,497	(2,821	-	4,318)		1,985	(1,518	-	2,587)

Table 3F. Marijuana Use by Age Group and Gender for North Central Region in 1998

AGE/ /GENDER	Ever Used					Used Past Year					Used Past Month
	Observed Estimate	95% C.I.				Observed Estimate	95% C.I.				Observed Estimate	95% C.I.
RATE ESTIMATES (Percent)
AGE
12-17	17.6	(14.6	-	21.1)		15.0	(12.3	-	18.3)		9.9	(7.0	-	13.8)
18-25	49.6	(45.0	-	54.2)		30.0	(25.9	-	34.6)		17.9	(14.8	-	21.4)
26-34	51.0	(46.6	-	55.5)		10.3	(8.0	-	13.2)		5.8	(4.2	-	8.0)
$35	29.2	(25.4	-	33.3)		3.2	(2.2	-	4.7)		2.0	(1.2	-	3.1)
GENDER
Male	39.8	(36.4	-	43.3)		10.8	(9.2	-	12.7)		6.6	(5.4	-	8.1)
Female	28.5	(24.5	-	32.8)		7.4	(5.7	-	9.6)		4.4	(3.2	-	6.0)
TOTAL	33.9	(30.8	-	37.3)		9.1	(7.8	-	10.5)		5.5	(4.5	-	6.6)

POPULATION ESTIMATES (In Thousands)

AGE
12-17	954	(790	-	1,143)		817	(665	-	995)		536	(379	-	751)
18-25	3,287	(2,985	-	3,591)		1,991	(1,714	-	2,293)		1,186	(981	-	1,422)
26-34	4,000	(3,649	-	4,350)		809	(629	-	1,033)		458	(332	-	629)
$35	9,113	(7,929	-	10,395)		1,014	(697	-	1,468)		614	(384	-	978)
GENDER
Male	9,792	(8,953	-	10,656)		2,656	(2,258	-	3,114)		1,634	(1,336	-	1,993)
Female	7,563	(6,506	-	8,716)		1,975	(1,522	-	2,548)		1,160	(845	-	1,586)
TOTAL	17,355	(15,727	-	19,061)		4,631	(3,981	-	5,375)		2,795	(2,309	-	3,376)

* Low precision; no estimate reported.

Source: Office of Applied Studies, SAMHSA, National Household Survey on Drug Abuse, 1998

Marijuana - Region

Table 3G. Marijuana Use by Age Group and Gender for South Region in 1998

AGE/ /GENDER	Ever Used					Used Past Year					Used Past Month
	Observed Estimate	95% C.I.				Observed Estimate	95% C.I.				Observed Estimate	95% C.I.
RATE ESTIMATES (Percent)
AGE
12-17	14.7	(12.7	-	16.9)		11.8	(10.0	-	13.9)		6.9	(5.6	-	8.6)
18-25	41.6	(38.2	-	45.1)		20.5	(17.6	-	23.8)		11.2	(9.1	-	13.8)
26-34	42.4	(38.5	-	46.5)		9.3	(7.5	-	11.6)		5.2	(3.8	-	7.1)
$35	25.7	(23.4	-	28.1)		3.7	(2.9	-	4.8)		2.6	(1.8	-	3.5)
GENDER
Male	34.5	(32.0	-	37.1)		10.1	(8.7	-	11.7)		6.6	(5.4	-	8.1)
Female	24.4	(22.3	-	26.6)		5.4	(4.5	-	6.5)		2.6	(2.0	-	3.4)
TOTAL	29.2	(27.3	-	31.3)		7.6	(6.8	-	8.6)		4.5	(3.9	-	5.3)

POPULATION ESTIMATES (In Thousands)

AGE
12-17	1,179	(1,022	-	1,356)		948	(801	-	1,118)		556	(448	-	688)
18-25	4,180	(3,837	-	4,531)		2,061	(1,764	-	2,393)		1,126	(911	-	1,385)
26-34	5,154	(4,679	-	5,641)		1,135	(906	-	1,413)		634	(461	-	867)
$35	12,089	(10,997	-	13,249)		1,766	(1,372	-	2,268)		1,202	(869	-	1,659)
GENDER
Male	12,759	(11,815	-	13,737)		3,730	(3,219	-	4,313)		2,453	(2,014	-	2,981)
Female	9,843	(8,986	-	10,753)		2,180	(1,818	-	2,608)		1,065	(821	-	1,380)
TOTAL	22,602	(21,095	-	24,170)		5,910	(5,249	-	6,646)		3,518	(3,011	-	4,107)

Table 3H. Marijuana Use by Age Group and Gender for West Region in 1998

AGE/ /GENDER	Ever Used					Used Past Year					Used Past Month
	Observed Estimate	95% C.I.				Observed Estimate	95% C.I.				Observed Estimate	95% C.I.
RATE ESTIMATES (Percent)
AGE
12-17	19.1	(16.8	-	21.6)		15.5	(13.3	-	17.9)		8.6	(7.0	-	10.5)
18-25	44.9	(41.0	-	48.7)		24.9	(22.0	-	28.0)		14.3	(12.3	-	16.7)
26-34	47.0	(43.1	-	50.9)		9.5	(7.3	-	12.3)		5.6	(3.9	-	8.0)
$35	36.2	(33.1	-	39.5)		5.4	(4.2	-	7.0)		3.3	(2.3	-	4.6)
GENDER
Male	42.7	(39.3	-	46.1)		12.1	(10.5	-	13.9)		7.1	(5.7	-	8.9)
Female	32.0	(28.9	-	35.3)		7.6	(6.6	-	8.7)		4.3	(3.6	-	5.2)
TOTAL	37.3	(34.8	-	39.8)		9.8	(8.7	-	11.0)		5.7	(4.7	-	6.8)

POPULATION ESTIMATES (In Thousands)

AGE
12-17	994	(873	-	1,127)		805	(691	-	934)		449	(367	-	546)
18-25	2,845	(2,603	-	3,091)		1,580	(1,398	-	1,777)		908	(777	-	1,058)
26-34	3,705	(3,400	-	4,014)		752	(577	-	973)		439	(305	-	628)
$35	10,201	(9,313	-	11,124)		1,535	(1,190	-	1,971)		922	(654	-	1,293)
GENDER
Male	10,030	(9,235	-	10,842)		2,843	(2,466	-	3,268)		1,675	(1,338	-	2,089)
Female	7,716	(6,957	-	8,515)		1,829	(1,593	-	2,098)		1,043	(863	-	1,258)
TOTAL	17,746	(16,566	-	18,958)		4,672	(4,146	-	5,257)		2,718	(2,260	-	3,261)

* Low precision; no estimate reported.

Source: Office of Applied Studies, SAMHSA, National Household Survey on Drug Abuse, 1998

This page was last updated on June 03, 2008.

SAMHSA, an agency in the Department of Health and Human Services, is the Federal Government's lead agency for improving the quality and availability of substance abuse prevention, addiction treatment, and mental health services in the United States.