[yrbs04.htm, updated 12/06]
Geographic Area/Year
Total
Female
Male
National
2005
9.9
8.1
11.7
CI
(8.9-10.9)
(7.1-9.1)
(10.3-13.1)
2003
12.1
8.9
17.2
(10.9-13.3)
(7.8-10.0)
(15.2-19.2)
2001
13.3
9.5
(11.9-14.7)
(8.1-10.9)
1999
13.1
8.7
17.4
(11.9-14.3)
(6.9-10.5)
(15.7-19.1)
1997
16.9
12.0
21.0
(14.1-19.7)
(9.5-14.5)
(17.8-24.2)
1995
15.4
11.9
18.5
(12.2-18.6)
(8.2-15.6)
(15.3-21.7)
1993
13.5
9.1
17.6
(11.6-15.4)
(7.0-11.2)
(15.5-19.7)
1991
16.7
21.5
(14.6-18.8)
(9.9-13.5)
(18.9-24.1)
State
Alabama
11.1
8.2
14.2
(9.2-13.0)
(5.4-11.0)
(9.9-18.5)
14.0
18.7
(10.6-17.4)
(6.4-11.8)
(13.8-23.6)
12.7
9.8
15.2
(10.2-15.2)
(7.1-12.5)
(12.1-18.3)
15.0
9.4
20.2
(13.3-16.7)
(7.6-11.2)
(17.3-23.1)
17.3
13.4
21.1
(15.7-18.9)
(11.5-15.3)
(18.9-23.3)
15.6
10.1
21.2
(13.7-17.5)
(8.4-11.8)
(18.8-23.6)
22.4
(16.0-18.6)
(10.5-13.7)
(20.4-24.4)
18.3
25.4
(16.0-20.6)
(21.5-29.3)
Alaska
-
11.3
8.0
(9.0-13.6)
(5.5-10.5)
(11.0-17.0)
Arizona
12.4
10.5
(10.6-14.2)
(8.2-12.8)
(11.7-16.7)
14.1
16.5
(11.3-16.9)
(9.0-14.4)
(12.6-20.4)
Arkansas
12.9
10.9
14.8
(9.9-15.9)
(8.0-13.8)
(11.1-18.5)
15.8
21.6
(12.2-19.4)
(16.1-27.1)
14.4
19.8
(12.2-16.6)
(6.7-11.1)
(15.8-23.8)
9.6
24.7
(15.4-19.2)
(7.3-11.9)
(21.6-27.8)
18.0
11.0
24.9
(15.9-20.1)
(9.2-12.8)
(21.3-28.5)
Colorado
(7.3-14.7)
(6.9-16.9)
(6.6-14.4)
18.4
(13.6-18.0)
(10.9-15.3)
(15.0-21.8)
Connecticut
(6.6-9.8)
(10.6-16.4)
14.6
10.6
18.6
(12.3-16.9)
(8.0-13.2)
(15.5-21.7)
Delaware
9.3
7.3
(7.8-10.8)
(5.8-8.8)
(9.0-13.2)
8.6
(9.4-12.6)
(6.8-10.4)
(11.1-15.5)
15.9
(10.3-13.9)
(6.9-10.3)
(13.3-18.5)
14.9
(10.9-14.9)
(8.6-13.2)
(12.0-17.8)
District of Columbia
4.0
3.1
4.9
(3.0-5.0)
(1.8-4.4)
(3.4-6.4)
7.2
6.3
(5.4-9.0)
(4.4-8.2)
7.6
3.8
11.8
(6.1-9.1)
(2.4-5.2)
(9.1-14.5)
(8.1-11.5)
(3.1-6.7)
(11.4-17.8)
4.4
13.9
(7.3-10.1)
(3.1-5.7)
(11.4-16.4)
Florida
10.2
9.0
(9.1-11.3)
(7.5-10.5)
(9.7-12.5)
13.8
(10.3-12.3)
(7.2-10.2)
(12.2-15.4)
(11.7-14.1)
(9.3-11.9)
(13.2-16.6)
Georgia
8.8
6.5
(5.9-11.7)
(3.6-9.4)
(7.6-14.4)
8.3
10.4
(5.9-10.7)
(3.6-9.0)
(8.0-12.8)
Hawaii
7.9
7.1
(6.3-9.5)
(5.4-8.8)
(5.5-11.7)
14.5
18.9
(11.2-17.8)
(5.7-15.1)
(15.0-22.8)
10.3
12.6
(7.1-13.5)
(5.2-10.8)
(8.5-16.7)
(6.0-11.6)
(11.1-18.1)
6.9
(8.1-12.5)
(4.7-9.1)
(10.1-16.7)
Idaho
15.7
(9.8-16.0)
(6.4-13.4)
(12.0-19.4)
9.7
(7.5-11.7)
(7.6-11.8)
(6.6-12.4)
12.3
(9.6-15.0)
(6.4-11.4)
(12.0-19.2)
Indiana
11.2
(8.5-13.9)
(4.9-9.7)
(11.1-18.9)
10.8
(9.8-15.0)
(7.1-14.5)
(11.6-16.6)
Iowa
16.1
20.3
(12.2-20.0)
(7.9-15.5)
(14.9-25.7)
(17.4-23.0)
(12.6-18.6)
(20.6-28.8)
Kansas
(13.0-20.0)
(9.1-15.5)
(15.3-25.3)
Kentucky
8.5
5.5
11.5
(7.1-9.9)
(4.5-6.5)
(9.5-13.5)
10.7
(8.9-12.5)
(6.3-10.9)
(10.1-15.1)
(12.4-19.2)
(7.5-12.7)
(16.3-25.9)
Louisiana
18.2
23.1
(16.2-20.2)
(11.8-15.0)
(20.0-26.2)
Maine
8.4
(8.6-13.8)
(6.5-10.3)
(10.1-18.1)
5.8
(8.2-12.2)
(2.7-8.9)
(11.0-16.8)
(8.4-13.2)
(6.2-11.8)
(9.9-14.7)
(13.9-17.7)
(17.7-24.7)
(9.9-14.9)
(11.4-19.4)
Maryland
6.1
(4.8-9.6)
(3.7-8.5)
(4.6-12.2)
Massachusetts
7.4
(8.8-12.2)
(5.6-9.2)
(11.2-15.6)
11.6
(10.1-13.1)
(7.4-10.6)
(12.1-16.1)
12.2
7.8
16.6
(10.8-13.6)
(6.3-9.3)
(14.9-18.3)
13.7
(12.2-15.2)
(8.2-11.4)
(15.2-19.6)
17.5
(12.7-15.7)
(9.6-12.2)
(15.3-19.7)
(14.3-17.5)
(10.2-13.8)
(17.7-21.9)
(9.9-13.1)
(6.9-9.1)
(12.6-17.4)
Michigan
(7.0-10.0)
(5.6-9.0)
(7.1-12.1)
(9.0-12.4)
(7.5-11.3)
(9.7-13.9)
(10.7-15.1)
(8.4-13.0)
(12.3-17.5)
13.0
(11.1-14.9)
(6.7-10.5)
(14.1-20.7)
20.5
(13.8-19.2)
(10.0-14.8)
(16.5-24.5)
Mississippi
12.8
(10.0-15.6)
(4.3-10.3)
(13.9-23.1)
17.9
(12.0-15.4)
(7.2-12.2)
(14.5-21.3)
19.3
(12.2-17.0)
(6.9-13.5)
(16.4-22.2)
15.1
21.8
(12.2-18.0)
(5.7-11.9)
(17.5-26.1)
19.6
11.4
28.1
(16.7-22.5)
(7.5-15.3)
(25.1-31.1)
19.7
28.0
(16.1-23.3)
(8.4-14.6)
(23.6-32.4)
Missouri
(9.3-13.5)
(6.8-11.2)
(10.5-16.9)
(12.1-17.7)
(10.0-16.0)
(12.6-20.6)
(13.0-18.8)
(9.4-16.6)
(15.1-22.3)
21.3
(12.2-19.6)
(7.2-13.6)
(16.4-26.2)
23.4
(15.1-25.3)
(11.0-22.4)
(18.5-28.3)
21.4
27.0
(18.9-23.9)
(13.5-18.1)
(23.7-30.3)
Montana
16.0
(16.1-20.9)
(13.5-18.5)
(17.4-23.6)
20.4
16.2
24.3
(17.9-22.9)
(13.5-18.9)
(20.8-27.8)
23.8
(19.0-24.6)
(15.9-23.3)
(20.8-26.8)
22.7
19.1
25.9
(20.3-25.1)
(17.0-21.2)
(22.5-29.3)
26.7
22.2
30.9
(24.0-29.4)
(18.9-25.5)
(27.3-34.5)
27.4
21.9
32.4
(24.3-30.5)
(18.9-24.9)
(28.0-36.8)
24.1
26.9
(20.8-27.4)
(17.8-24.4)
(22.5-31.3)
Nebraska
20.0
(15.2-19.4)
(12.4-16.6)
(17.0-23.0)
20.9
22.1
(18.5-23.3)
(18.9-25.3)
Nevada
(8.4-12.4)
(6.7-10.9)
(8.4-15.2)
(8.9-13.3)
(9.2-15.2)
(10.7-15.5)
(8.3-14.9)
(11.3-17.7)
17.0
(14.8-19.2)
(9.5-14.3)
(18.3-24.9)
17.8
(12.4-17.6)
(13.7-21.9)
(11.1-16.7)
(7.9-13.5)
(12.9-20.5)
15.3
(10.0-14.2)
(7.0-10.4)
(12.2-18.4)
New Hampshire
(7.7-12.1)
(5.7-10.9)
(8.0-15.2)
7.7
(5.1-10.3)
(8.2-15.0)
(12.5-17.3)
(8.5-14.5)
(14.8-21.8)
(9.5-12.1)
(6.1-9.3)
(11.7-15.7)
New Jersey
7.5
(4.5-10.5)
New Mexico
(10.7-13.3)
(8.6-11.2)
(11.0-16.0)
New York
4.6
7.0
(4.7-6.9)
(3.3-5.9)
(5.4-8.6)
(6.6-9.0)
(4.8-6.8)
(8.1-11.3)
6.6
(7.1-9.7)
(5.3-7.9)
4.5
(6.4-9.8)
(2.9-6.1)
(9.3-13.9)
North Carolina
(7.1-11.7)
(4.7-7.5)
(8.9-16.3)
(6.7-11.9)
(4.7-7.9)
(8.3-16.3)
(7.7-10.9)
(4.4-7.8)
(10.7-14.7)
(5.5-8.9)
(15.3-21.1)
North Dakota
22.0
19.4
(18.8-25.2)
(15.4-23.4)
(20.2-28.4)
25.5
27.8
(23.7-29.7)
(22.0-29.0)
(23.7-31.9)
26.8
29.3
(23.8-29.8)
(20.3-27.3)
(25.6-33.0)
31.4
27.3
35.3
(27.7-35.1)
(22.6-32.0)
(31.3-39.3)
Ohio
6.4
(6.5-10.7)
(3.7-9.1)
(7.8-13.6)
(6.4-12.8)
(5.7-10.3)
(6.2-15.6)
20.1
(13.8-19.4)
(10.2-16.0)
(16.3-23.9)
13.6
16.3
(11.8-15.4)
(8.8-12.6)
(13.8-18.8)
15.5
(9.4-13.6)
(4.9-9.5)
(12.9-18.1)
Oklahoma
14.7
(10.3-14.3)
(7.2-12.0)
(12.0-17.4)
(15.0-20.0)
(8.5-17.5)
(19.8-23.8)
Rhode Island
(5.1-8.9)
(9.5-12.9)
(6.6-10.8)
(11.4-15.6)
(13.1-17.9)
(6.3-11.9)
(18.6-24.6)
(11.8-17.0)
(13.6-20.4)
South Carolina
(8.7-14.3)
(4.2-10.6)
(13.9-16.9)
(9.1-12.3)
(18.3-22.5)
(15.1-18.1)
(10.2-13.4)
(19.5-23.3)
(9.8-12.6)
(20.8-25.4)
20.6
(13.6-16.8)
(18.5-22.7)
(15.3-18.1)
(9.3-12.7)
(20.4-24.0)
South Dakota
18.8
(14.2-20.2)
(11.7-19.5)
(15.3-22.3)
22.3
23.9
(18.8-25.8)
(16.1-24.9)
(19.6-28.2)
24.5
(18.1-25.7)
(15.1-23.1)
(19.6-29.4)
30.8
(24.2-30.6)
(20.1-27.7)
(26.4-35.2)
25.1
36.6
(25.0-36.8)
(18.8-31.4)
(30.4-42.8)
30.0
33.2
(23.4-36.6)
(20.5-32.9)
(25.2-41.2)
29.2
23.7
34.5
(25.1-33.3)
(18.3-29.1)
(29.9-39.1)
27.9
30.5
(21.6-34.2)
(17.5-32.3)
(24.1-36.9)
Tennessee
(8.9-12.9)
(6.6-10.2)
(10.7-16.3)
(8.3-14.1)
(5.2-10.4)
(10.9-18.3)
Texas
19.9
(12.7-18.1)
(8.6-13.0)
(16.3-23.5)
(14.8-17.8)
(18.3-22.3)
Utah
4.1
4.3
(2.8-5.4)
(2.3-5.3)
(2.4-6.2)
6.8
(5.7-9.1)
(4.9-10.3)
(4.7-8.9)
3.4
(4.2-8.6)
(1.4-5.4)
(5.9-12.7)
5.3
(5.0-9.4)
(3.4-7.2)
(5.6-11.6)
(5.3-10.5)
(8.0-10.8)
(6.2-9.0)
(3.9-7.7)
(7.4-11.4)
6.7
(7.1-8.9)
(5.7-7.7)
(7.9-10.3)
(6.9-10.9)
(4.8-8.2)
Vermont
5.9
(7.6-10.2)
(4.7-7.1)
(9.6-13.6)
(7.5-10.3)
(5.1-7.1)
(8.5-11.7)
(5.2-7.8)
(9.4-13.2)
(6.0-9.2)
(12.2-17.2)
18.1
(12.1-16.9)
(9.9-12.2)
(14.5-21.7)
17.1
(9.2-14.6)
(18.3-25.3)
West Virginia
(8.6-12.6)
(11.6-18.8)
(9.1-14.9)
(5.8-12.8)
(10.5-18.5)
(9.7-16.1)
(5.6-13.6)
(11.7-19.9)
20.7
(12.0-16.8)
(6.5-10.5)
(17.2-24.2)
(13.9-19.3)
(18.1-25.9)
(12.8-16.8)
(7.8-10.4)
(17.2-23.6)
Wisconsin
(12.0-15.2)
(11.6-16.2)
(8.1-12.7)
(13.9-20.3)
17.7
(14.4-19.6)
(13.2-19.2)
(14.3-21.1)
16.8
(13.3-20.3)
(8.2-16.0)
(16.1-25.9)
(13.3-18.3)
( 9.2-16.2)
(13.0-16.4)
Wyoming
13.2
(13.4-17.2)
(10.6-15.8)
(14.7-19.7)
19.2
(16.0-22.4)
(15.8-23.0)
(14.7-23.1)
24.6
(17.7-22.7)
(13.0-18.0)
(21.1-28.1)
23.3
25.3
(20.3-26.3)
(18.2-23.8)
(21.2-29.4)
(19.2-24.0)
(15.4-20.4)
(21.8-28.8)
(19.5-25.3)
(15.3-20.7)
(22.7-30.7)
City
Baltimore
5.0
3.3
(4.0-6.0)
(2.2-4.4)
Boston
5.4
2.5
(4.0-6.8)
(1.3-3.7)
(6.0-10.6)
(4.2-6.8)
(2.6-5.4)
(4.9-9.1)
(5.6-8.8)
(7.7-13.5)
(5.5-8.7)
(2.7-6.1)
(7.3-12.5)
4.7
(6.4-9.2)
(3.1-6.3)
(6.0-9.8)
(2.1-6.1)
(8.4-14.8)
Broward County, FL
(4.7-8.5)
(7.4-13.6)
(5.1-9.5)
(7.8-12.4)
Charlotte-Mecklenburg, NC
10.0
(6.2-9.8)
(3.5-8.3)
(7.6-12.4)
Chicago
(6.4-12.2)
(4.1-10.3)
(7.4-16.2)
(6.3-10.7)
(4.2-8.4)
(7.2-14.2)
(4.7-10.9)
(8.1-18.5)
(7.1-11.9)
(3.4-7.6)
(9.9-16.7)
(6.0-9.0)
(9.1-14.3)
(3.2-5.8)
(6.4-14.2)
(4.6-7.2)
(2.2-4.6)
(6.1-10.9)
3.6
(2.1-5.1)
(9.8-16.6)
Dallas
(11.7-15.5)
(15.2-21.4)
(9.9-13.7)
(7.2-10.8)
(11.9-18.1)
(9.5-13.3)
(6.1-10.7)
(11.8-17.6)
(8.0-12.2)
(6.0-10.2)
(9.2-15.4)
(8.7-12.5)
(5.4-9.8)
(10.9-16.3)
(12.3-15.3)
(6.7-9.5)
(17.1-22.5)
(11.6-13.8)
(5.7-8.3)
(17.2-21.0)
(11.2-14.6)
(6.2-8.8)
(16.3-20.7)
Dekalb County, GA
2.8
(3.9-5.9)
(1.6-4.0)
(5.2-8.6)
(4.0-5.8)
(2.6-5.0)
(4.4-7.2)
Detroit
(3.6-6.4)
(2.9-6.3)
(3.3-7.5)
(4.1-6.7)
(3.9-7.1)
(3.3-7.3)
5.1
(5.4-8.2)
(3.5-6.7)
(6.6-10.4)
5.6
(7.2-9.8)
(4.1-7.1)
(9.6-14.2)
Hillsborough County, FL
(5.8-9.4)
(11.7-18.5)
Ft. Lauderdale
(9.1-12.5)
(5.7-9.3)
(10.9-16.7)
(8.7-12.7)
(7.1-11.5)
(8.8-15.4)
(8.7-13.5)
(4.9-8.3)
(11.8-19.4)
(7.3-10.3)
(6.2-9.4)
(7.4-12.2)
5.7
(7.5-11.5)
(3.9-7.5)
(10.4-16.4)
(8.5-13.3)
(5.8-10.2)
(10.9-17.9)
Houston
(7.9-13.3)
(12.7-21.7)
12.5
(7.8-11.6)
(4.4-8.6)
(9.7-15.3)
(10.3-17.1)
(16.9-27.1)
(4.4-10.2)
(16.5-26.3)
Los Angeles
6.2
(3.8-8.6)
(2.3-6.5)
(4.4-11.6)
(4.4-8.0)
(1.8-6.8)
(3.6-6.6)
(7.5-12.1)
Memphis
(4.1-7.3)
(3.3-6.1)
(4.0-9.2)
5.2
(4.0-6.4)
(1.8-3.8)
(5.5-9.7)
Miami
(6.4-9.4)
(6.4-9.0)
(4.0-7.8)
6.0
(7.4-10.2)
(4.4-7.6)
(9.6-13.8)
9.2
(6.8-11.6)
(3.5-7.7)
(9.3-16.3)
(4.5-7.9)
(9.1-16.5)
(2.5-5.5)
(11.7-17.5)
(7.8-9.2)
(4.6-6.0)
(10.0-13.4)
(6.9-11.1)
(3.6-6.2)
Milwaukee
(6.0-10.8)
4.2
(6.0-9.4)
(2.6-5.8)
(8.4-14.0)
New Orleans
(6.2-10.0)
(5.9-9.9)
(8.6-14.8)
(7.5-13.1)
(5.5-11.1)
(8.5-16.5)
(8.8-12.8)
(4.6-9.2)
(12.3-18.1)
(7.6-10.6)
(4.3-7.1)
(10.1-15.7)
New York City
3.0
(3.2-4.8)
(1.6-4.4)
(3.8-6.0)
(3.8-5.2)
(2.3-3.9)
(5.0-7.0)
2.6
(3.4-5.6)
(1.4-3.8)
(4.3-8.5)
3.7
2.9
(2.7-4.7)
(1.3-4.5)
(2.8-6.2)
(3.5-5.9)
(1.6-4.2)
(4.7-8.1)
Orange County, FL
(9.0-13.4)
(11.6-18.4)
(3.8-10.0)
(7.1-14.7)
Palm Beach
(8.1-13.3)
(6.9-11.7)
(7.9-15.7)
(6.5-12.3)
(12.0-18.2)
(10.3-16.9)
(7.9-11.7)
(12.2-22.8)
24.4
(14.9-19.5)
(7.9-11.9)
(20.6-28.2)
Philadelphia
2.7
(3.2-6.6)
(1.1-4.3)
(4.6-9.6)
(3.5-6.3)
(3.3-6.9)
(2.7-6.5)
3.5
(2.0-5.0)
(5.0-10.2)
(6.1-9.5)
(2.4-4.4)
(1.7-4.1)
(5.9-11.1)
(5.4-8.0)
(2.4-6.6)
(6.4-12.4)
San Bernardino
(5.2-9.2)
(5.3-8.3)
(3.7-7.5)
(5.4-10.6)
(8.2-12.6)
(6.3-9.9)
(9.1-15.9)
San Diego
(6.7-10.3)
(6.7-11.7)
(8.3-12.3)
(6.1-10.3)
(6.8-10.2)
(8.0-13.4)
(7.0-10.2)
(4.3-7.5)
(8.6-14.0)
(10.0-13.8)
(8.8-12.4)
(5.9-9.5)
(11.2-16.8)
(8.6-11.8)
(5.2-8.4)
(11.2-16.2)
(5.9-12.1)
(9.3-17.5)
San Francisco
(2.8-4.8)
(2.7-5.5)
(3.6-5.6)
Seattle
Sources: Centers for Disease Control and Prevention. Youth online at http://apps.nccd.cdc.gov/yrbss/, Youth Risk Behavior Survey, CD-ROM, Youth '99 and Youth Risk Behavior Survey, CD-ROM Youth '97. The YRBS is an in-school survey of students in grades 9 through 12. Unweighted data are excluded from these tables.
- Missing bar indicates less than 100 respondents for the category. If all categories in a year have a missing bar, either the geographic area did not use the survey item or participate in the YRBS that year, the data were not weighted, or the survey excluded students from one of the large school districts.
CI indicates 95-percent confidence interval.