[yrbs07.htm, updated 12/06]
Geographic Area/Year
Total
Female
Male
National
2005
23.7
20.5
26.9
CI
(21.4-26.0)
(18.1-22.9)
(23.4-30.4)
2003
27.8
23.3
32.0
(25.7-29.9)
(20.9-25.7)
(29.5-34.5)
2001
29.1
24.2
34.2
(27.5-30.7)
(22.3-26.1)
(32.5-35.9)
1999
32.2
26.8
37.4
(29.8-34.6)
(24.7-28.9)
(33.7-41.1)
1997
31.1
25.7
35.7
(29.4-32.8)
(23.3-28.1)
(33.6-37.8)
1995
32.4
25.5
38.6
(30.1-34.7)
(22.4-28.6)
(35.7-41.5)
1993
32.9
27.1
38.2
(31.5-34.3)
(25.2-29.0)
(36.2-40.2)
1991
32.7
(30.3-35.1)
(25.4-30.2)
(34.6-40.2)
1990
37.5
31.3
43.9
(35.2-39.8)
(28.4-34.2)
(41.4-46.4)
State
Alabama
30.9
23.4
39.0
(26.3-35.5)
(17.5-29.3)
(34.1-43.9)
25.4
20.3
30.1
(23.0-27.8)
(16.2-24.4)
(26.4-33.8)
28.4
25.3
(25.8-31.0)
(22.0-28.6)
(27.0-34.8)
30.7
22.9
37.8
(27.7-33.7)
(19.0-26.8)
(34.3-41.3)
33.8
26.0
41.3
(30.9-36.7)
(22.8-29.2)
(37.7-44.9)
34.6
26.6
42.5
(31.6-37.6)
(23.2-30.0)
(39.0-46.0)
31.7
24.9
38.4
(29.5-33.9)
(21.6-28.2)
(36.0-40.8)
40.7
(31.2-36.4)
(37.1-44.3)
-
Alaska
23.2
20.4
25.6
(20.4-26.0)
(16.2-24.6)
(21.8-29.4)
Arizona
26.7
23.8
29.6
(24.2-29.2)
(20.9-26.7)
(25.8-33.4)
29.8
26.2
33.4
(26.9-32.7)
(21.6-30.8)
(29.4-37.4)
Arkansas
30.8
26.1
34.5
(27.3-34.3)
(22.3-29.9)
(29.4-39.6)
31.8
23.6
39.8
(29.4-34.2)
(20.0-27.2)
(36.6-43.0)
28.8
(29.8-37.0)
(24.4-33.2)
(32.7-42.9)
37.2
29.5
44.6
(34.4-40.0)
(25.6-33.4)
(41.5-47.7)
28.2
47.0
(34.6-41.0)
(24.1-32.3)
(43.7-50.3)
Colorado
21.5
32.6
(24.6-29.6)
(17.9-25.1)
(29.0-36.2)
30.4
45.0
(37.4-40.9)
(26.8-34.0)
(41.2-48.8)
35.8
40.1
(32.6-39.0)
(26.7-35.9)
(36.8-43.4)
Connecticut
21.3
17.6
24.6
(18.6-24.0)
(15.2-20.0)
(20.9-28.3)
23.5
33.5
(25.7-31.1)
(19.6-27.4)
(29.7-37.3)
Delaware
27.2
(24.7-29.7)
(20.5-25.9)
(27.4-34.4)
30.3
28.1
32.5
(27.5-33.1)
(24.9-31.3)
(29.4-35.6)
34.4
(26.7-30.9)
(20.6-26.2)
(31.5-37.3)
27.6
35.6
(24.9-30.3)
(32.2-39.0)
District of Columbia
18.2
17.0
19.6
(15.7-20.7)
(13.8-20.2)
(16.6-22.6)
30.2
(24.4-31.2)
(21.2-30.0)
(26.3-34.1)
27.9
24.8
31.4
(25.3-30.5)
(22.1-27.5)
(27.0-35.8)
26.4
(29.5-35.5)
(21.5-31.3)
(33.7-43.5)
31.9
28.7
(29.1-34.7)
(25.4-32.0)
(31.7-39.7)
28.9
(26.0-31.8)
(24.7-32.9)
(25.3-32.5)
Florida
21.9
(23.6-27.2)
(19.5-24.3)
(26.3-31.3)
29.4
25.9
32.8
(27.5-31.3)
(23.9-27.9)
(29.5-36.1)
26.5
34.8
(28.8-32.6)
(24.2-28.8)
(32.0-37.6)
Gerogia
28.6
(23.1-30.5)
(20.9-28.9)
(24.4-32.8)
24.4
(26.2-32.8)
(20.7-28.1)
(30.5-38.5)
Hawaii
27.3
(23.5-31.1)
(20.2-29.6)
(25.7-33.5)
33.6
29.2
38.1
(30.1-37.1)
(25.0-33.4)
(34.0-42.2)
27.0
36.0
(26.8-36.6)
(21.5-32.5)
(30.2-41.8)
33.9
39.4
(30.0-37.8)
(23.8-33.6)
(34.4-44.4)
(29.8-37.8)
(25.9-36.9)
(32.3-39.7)
Idaho
19.4
(21.6-29.4)
(15.9-22.9)
(25.8-37.0)
22.5
19.8
(19.2-25.8)
(16.2-23.4)
(20.0-29.6)
24.0
(25.2-30.0)
(20.8-27.2)
(27.2-34.6)
Indiana
21.8
(18.7-24.9)
(14.0-21.2)
(22.0-29.8)
23.9
(20.4-27.4)
(16.4-23.2)
(23.4-32.2)
Iowa
22.3
18.5
(18.4-26.2)
(14.9-22.1)
(20.7-30.7)
22.8
(25.7-32.1)
(19.2-26.4)
(30.6-39.0)
Kansas
25.0
20.9
(21.8-28.2)
(17.7-24.1)
(23.7-33.7)
Kentucky
24.7
(26.3-31.5)
(21.0-28.4)
(30.3-35.5)
(23.4-30.2)
(17.7-24.9)
(27.4-36.4)
22.6
(24.7-36.1)
(18.4-26.8)
(30.2-44.8)
Louisiana
40.8
47.1
(38.1-43.5)
(31.1-38.1)
(44.1-50.1)
Maine
16.2
20.2
(15.2-21.2)
(12.9-19.5)
(16.2-24.2)
21.0
17.3
24.1
(18.3-23.7)
(12.6-22.0)
(20.4-27.8)
21.7
(18.6-24.8)
(14.0-20.6)
(21.7-29.5)
28.5
22.2
(25.4-31.6)
(18.7-25.7)
Maryland
(21.6-28.0)
(20.8-27.4)
(21.5-29.3)
Massachusetts
22.0
18.9
(20.0-24.0)
(17.0-20.8)
(22.3-27.7)
25.2
(23.2-27.2)
(19.5-25.5)
(25.5-30.3)
32.1
(26.1-29.7)
(21.7-25.3)
(29.5-34.7)
33.7
(27.6-31.4)
(22.6-27.4)
(31.4-36.0)
26.3
35.3
(28.4-33.2)
(23.6-29.0)
(32.7-37.9)
36.3
(28.8-33.4)
(22.9-28.5)
(33.6-39.0)
31.0
36.8
(28.7-33.3)
(22.3-27.5)
(33.7-39.9)
29.3
42.9
(32.7-39.3)
(24.8-33.8)
(39.4-46.4)
Michigan
24.5
(19.3-25.9)
(16.7-24.1)
(21.0-28.0)
22.4
(24.7-29.1)
(19.3-25.5)
(28.3-33.7)
(24.6-29.2)
(20.9-27.3)
(26.0-32.2)
36.4
(28.9-35.5)
(24.0-32.2)
(32.3-40.5)
34.9
38.8
(31.7-38.1)
(27.2-35.0)
(35.2-42.4)
Mississippi
37.3
(22.4-31.0)
(33.5-41.1)
29.0
35.5
(29.1-35.3)
(25.9-32.1)
(31.2-39.8)
25.8
42.3
(30.8-37.0)
(22.7-28.9)
(37.5-47.1)
36.2
46.1
(31.2-41.2)
(20.4-32.8)
(42.1-50.1)
31.2
40.0
(28.1-34.3)
(18.9-25.5)
(35.1-44.9)
34.0
41.7
(31.7-36.3)
(23.1-29.7)
(38.1-45.3)
43.2
(29.4-37.8)
(21.5-28.5)
(37.4-49.0)
Missouri
(20.8-27.6)
(17.0-22.6)
(23.9-33.1)
(22.1-28.7)
(17.1-26.3)
(24.6-32.6)
30.0
34.3
(26.6-33.4)
(21.8-29.2)
(28.9-39.7)
27.4
39.3
(30.4-36.6)
(22.2-32.6)
(36.4-42.2)
(30.0-37.2)
(24.6-32.2)
(32.3-44.5)
39.9
46.8
(37.6-42.2)
(29.3-36.1)
(44.5-49.1)
Montana
(25.1-30.5)
(20.1-26.3)
(28.9-34.9)
36.1
(27.2-33.6)
(32.3-39.9)
35.1
(32.5-37.7)
(25.4-32.4)
(37.2-44.4)
39.6
(30.8-36.0)
(23.5-29.3)
(36.3-42.9)
31.6
45.9
(36.0-41.6)
(28.3-34.9)
(42.1-49.7)
(36.3-42.3)
(26.8-35.4)
47.3
(37.1-42.9)
(28.0-35.6)
(43.6-51.0)
Nebraska
(22.0-25.8)
(17.5-22.1)
(25.2-30.4)
(24.1-29.1)
(18.8-24.8)
(27.9-34.7)
Nevada
(28.0-34.2)
(22.1-28.9)
(31.4-41.0)
35.0
(31.1-38.9)
33.0
(28.4-37.6)
(25.1-34.1)
(29.9-42.5)
(34.1-40.9)
(28.4-35.6)
(38.2-46.8)
37.0
41.1
(33.7-40.3)
(27.4-37.8)
(36.7-45.5)
41.4
37.1
45.5
(38.0-44.8)
(33.4-40.8)
(40.6-50.4)
37.6
33.3
41.9
(34.0-41.2)
(29.4-37.2)
(37.4-46.4)
New Hampshire
19.3
17.7
20.7
(16.2-22.4)
(14.2-21.2)
(16.8-24.6)
20.8
(22.3-29.3)
(16.7-24.9)
(26.1-35.3)
(24.1-29.7)
(20.4-27.2)
(26.5-33.5)
(28.4-33.6)
(22.8-28.8)
(33.0-39.2)
New Jersey
20.1
18.6
21.6
(17.4-22.8)
(16.3-20.9)
(17.4-25.8)
New Mexico
(25.5-34.5)
(22.3-29.7)
(27.8-39.2)
New York
25.1
(22.9-27.3)
(20.0-25.6)
(24.6-29.8)
(24.7-29.3)
(21.9-26.3)
(26.8-33.6)
31.5
(29.3-33.7)
(24.8-29.2)
30.6
36.5
(28.6-32.6)
(21.9-27.3)
(33.5-39.5)
North Carolina
16.8
(18.5-24.1)
(14.6-19.0)
(21.9-29.1)
(19.5-24.9)
(15.6-22.2)
(22.3-28.7)
21.4
(22.4-27.0)
(18.5-24.3)
24.3
(28.1-32.7)
(21.6-27.0)
(33.1-39.7)
North Dakota
19.7
16.5
(17.2-22.2)
(13.0-20.0)
(19.3-25.7)
21.1
(21.2-29.6)
(17.9-24.3)
(23.4-35.4)
(26.5-33.1)
(21.2-28.4)
22.1
35.4
(18.3-25.9)
(31.0-39.8)
Ohio
22.7
(18.2-27.2)
(15.2-25.2)
(19.7-30.7)
32.3
(23.2-31.4)
(18.4-25.4)
(25.6-39.0)
(27.4-33.4)
(20.7-28.3)
(32.0-40.2)
30.5
(27.3-33.7)
(21.8-28.6)
(32.0-39.2)
34.1
40.2
(31.2-37.0)
(24.0-31.2)
(36.2-44.2)
Oklahoma
21.2
(22.3-28.1)
(17.6-24.8)
(25.3-32.7)
(22.6-31.0)
(16.1-25.9)
(25.0-39.8)
Rhode Island
(18.8-24.6)
(20.4-28.2)
(21.6-27.8)
(16.8-23.6)
(24.6-34.2)
29.7
(25.6-33.8)
(19.4-30.0)
(31.5-37.7)
36.7
(30.1-37.3)
(26.4-35.2)
(32.6-40.8)
South Carolina
(20.9-30.3)
(17.1-25.9)
(23.3-35.9)
(31.9-35.3)
(25.0-29.6)
(37.9-42.3)
42.0
(34.2-38.6)
(28.6-33.0)
(39.0-45.0)
39.1
46.9
(36.7-41.5)
(44.0-49.8)
(35.1-39.3)
(28.7-33.9)
(40.5-45.3)
(31.2-34.8)
(25.0-28.8)
(36.5-41.1)
South Dakota
17.5
(18.8-29.2)
(14.3-20.7)
(22.5-38.5)
19.5
(20.7-29.3)
(15.8-23.2)
(24.5-36.3)
(28.0-35.2)
(32.4-42.0)
(27.1-32.9)
(22.2-30.6)
(30.8-35.8)
36.9
(27.6-35.0)
(32.3-41.5)
44.4
(31.3-40.1)
(22.8-30.6)
(38.0-50.8)
(30.7-42.3)
(21.2-34.4)
(38.5-50.7)
(30.5-36.7)
(21.4-29.8)
(37.4-45.4)
35.2
(30.4-40.0)
(35.6-45.8)
Tennessee
28.3
(21.1-27.7)
(24.2-32.4)
(23.1-29.3)
(18.5-25.7)
(26.5-34.1)
Texas
(27.5-31.9)
(21.6-27.6)
(31.3-37.3)
(26.2-30.2)
(19.5-24.7)
(31.1-36.7)
(26.2-32.6)
(21.1-26.9)
(30.5-38.7)
Utah
13.2
10.3
16.0
(9.5-16.9)
(6.4-14.2)
(10.9-21.1)
17.4
13.0
(13.0-21.8)
(9.1-16.9)
(13.0-30.0)
15.8
17.8
(14.1-19.9)
(11.6-20.0)
(14.9-20.7)
17.2
14.0
19.9
(13.9-20.5)
(09.1-18.9)
(16.6-23.2)
18.0
(17.3-24.3)
(13.9-22.1)
(19.5-27.5)
(19.6-24.6)
(16.2-21.6)
(22.1-28.3)
(21.1-28.5)
(17.1-24.3)
(24.7-33.5)
23.0
(20.5-25.5)
(14.7-20.1)
(25.1-31.7)
Vermont
20.6
16.1
(16.8-24.4)
(13.2-19.0)
(19.8-29.6)
(21.7-24.9)
(18.2-21.0)
(24.2-29.0)
(22.5-29.5)
(19.0-24.6)
(25.1-34.3)
(18.6-22.2)
(29.2-36.6)
27.5
(29.7-36.3)
(24.7-30.3)
(34.5-41.9)
40.5
(31.2-38.0)
(25.9-30.7)
(36.0-45.0)
43.3
(35.9-38.3)
(28.9-32.1)
(42.1-44.5)
West Virginia
(28.0-33.8)
(23.5-30.3)
(29.6-39.4)
(21.6-33.2)
(18.0-33.8)
(23.1-34.5)
37.7
(30.1-34.9)
(34.7-40.7)
(30.2-38.0)
(23.0-30.6)
(36.9-46.5)
47.5
(34.3-40.3)
(23.2-29.6)
(43.2-51.8)
45.6
(34.6-40.8)
(26.5-32.1)
(41.8-49.4)
40.3
48.4
(37.6-43.0)
(28.1-36.9)
(45.3-51.5)
Wisconsin
18.7
(21.3-26.1)
(15.9-21.5)
(22.8-28.0)
(19.4-24.4)
(24.7-32.7)
(25.1-31.3)
(23.2-30.4)
(25.8-33.2)
(27.0-33.6)
(18.8-28.8)
(32.8-40.2)
(24.5-32.9)
(18.9-26.7)
(28.6-39.6)
42.8
(34.0-39.6)
(27.4-34.0)
(39.7-45.9)
Wyoming
(24.6-29.4)
(20.7-26.3)
(26.8-33.8)
34.7
(31.5-37.9)
(25.1-33.3)
(36.0-43.8)
27.7
(30.9-36.9)
(24.3-31.1)
(36.4-43.2)
43.6
(32.7-39.9)
(24.6-32.4)
(39.0-48.2)
47.9
(37.3-43.7)
(28.8-37.0)
(44.1-51.7)
50.9
(38.7-45.3)
(29.0-36.4)
(46.2-55.6)
City
Baltimore
(24.2-28.6)
(21.4-26.6)
(25.8-32.0)
Boston
(20.4-28.4)
(24.2-32.0)
(27.2-33.0)
(23.7-31.7)
(28.2-36.8)
(27.0-33.2)
(29.8-38.2)
(26.3-33.1)
(20.1-28.1)
(30.1-40.1)
33.1
(30.3-36.2)
(22.9-30.1)
(36.2-44.4)
33.2
40.6
(30.4-36.0)
(22.6-30.0)
(36.4-44.8)
(27.3-33.9)
(20.6-28.6)
(32.3-41.1)
Broward County, FL
(22.7-29.5)
(26.0-33.2)
29.9
(26.4-32.2)
(24.8-32.6)
(26.1-33.7)
Charlotte-Mecklenburg, NC
(19.4-22.8)
(15.5-19.7)
(22.0-26.8)
Chicago
(21.2-29.4)
(16.0-23.8)
(26.4-35.8)
(25.6-37.6)
(20.2-35.2)
(28.5-42.7)
(27.8-37.0)
(25.0-32.0)
(29.7-43.7)
(26.0-33.8)
(27.4-39.4)
41.6
(32.5-37.5)
(26.3-32.9)
(38.4-44.8)
(28.8-36.2)
(25.4-34.4)
(30.4-40.2)
(18.5-26.7)
(31.4-38.0)
23.1
38.9
(19.2-27.0)
(34.3-43.5)
Dallas
(30.2-38.4)
(34.8-45.8)
(26.5-32.7)
(22.0-29.4)
(29.4-38.2)
(30.8-37.8)
(23.3-32.1)
(36.9-45.9)
(31.1-38.7)
(34.4-45.4)
(28.3-36.9)
(34.6-43.6)
(33.9-38.7)
(27.1-35.3)
(38.5-45.3)
(33.2-35.8)
(25.2-28.4)
(40.9-45.5)
(30.8-35.6)
(24.1-30.1)
(36.9-41.9)
(35.5-45.1)
DeKalb County, GA
(30.6-34.8)
(27.5-32.9)
(31.9-38.3)
(30.2-35.6)
(28.5-34.7)
(30.5-37.9)
Detroit
(22.4-30.4)
(28.2-39.6)
(27.8-34.8)
(23.9-31.9)
(29.3-35.3)
(22.7-30.1)
(35.5-42.7)
37.9
(30.3-35.7)
(24.9-32.3)
(34.5-41.3)
Hillsborough County, FL
(23.2-29.0)
(19.1-26.5)
(24.5-33.1)
Ft. Lauderdale
(25.3-29.9)
(20.7-26.7)
(28.4-35.4)
(28.0-33.6)
(23.7-30.9)
(29.5-35.1)
(25.4-32.6)
(31.6-39.6)
(25.8-33.0)
(31.0-39.2)
(21.9-30.1)
(32.2-39.2)
(26.6-33.8)
(21.2-29.2)
(31.5-41.3)
Houston
(28.1-33.9)
(22.1-31.5)
(31.4-39.2)
(28.2-36.0)
(23.5-30.9)
(30.1-42.9)
(33.5-40.5)
(28.2-39.4)
(36.7-44.9)
44.8
(31.7-37.9)
(41.2-48.4)
Los Angeles
(26.4-33.4)
(26.9-37.9)
(25.8-32.6)
(20.2-29.0)
(28.7-38.7)
(29.6-35.6)
(26.4-34.2)
(30.3-38.9)
Memphis
(22.4-30.2)
(18.3-27.5)
(25.2-34.8)
(24.2-30.6)
(19.9-29.1)
(26.3-34.3)
Miami
(21.4-28.2)
(29.1-36.3)
(25.6-31.8)
(21.6-28.4)
(27.2-37.0)
(27.6-32.0)
(22.1-27.7)
(30.8-38.4)
36.6
(33.9-39.3)
(28.4-35.8)
(37.3-44.9)
(33.6-38.4)
(28.2-35.0)
(36.7-43.5)
(32.5-39.1)
(24.8-34.0)
(37.7-46.1)
39.7
(35.5-38.7)
(31.6-37.2)
(37.7-41.7)
39.2
(32.7-37.5)
(27.8-33.4)
(37.0-41.4)
(30.3-39.5)
(23.6-34.2)
(37.1-45.7)
Milwaukee
(20.1-27.5)
(26.4-32.8)
(22.0-27.8)
(17.0-25.0)
(24.3-33.5)
New Orleans
(28.5-35.1)
(26.9-33.7)
(28.1-38.5)
(22.9-29.9)
(26.3-33.3)
(27.4-32.0)
(23.8-31.4)
(29.1-35.1)
(34.5-42.3)
(30.9-39.1)
(37.0-48.0)
44.2
(35.7-42.1)
(30.0-38.8)
(40.6-47.8)
New York City
(26.7-33.7)
(23.6-33.0)
(29.0-35.6)
(28.6-33.4)
(26.1-31.1)
(30.6-36.6)
(30.9-38.5)
(27.6-34.8)
(33.3-43.9)
(27.9-34.1)
(24.4-29.0)
(30.8-40.2)
(23.1-33.3)
Orange County, FL
(22.9-28.9)
(20.2-27.6)
(23.5-32.3)
(20.0-28.8)
(18.0-25.2)
(20.6-33.0)
Palm Beach
(22.2-28.6)
(17.8-25.6)
(24.8-33.2)
(25.5-31.3)
(20.6-26.6)
(29.5-37.7)
(25.9-35.3)
(20.3-28.5)
(30.9-42.7)
(29.5-38.3)
(20.8-30.0)
(36.1-47.9)
Philadelphia
(22.6-29.6)
(20.5-26.5)
(28.8-36.0)
(23.9-33.5)
(31.1-40.9)
(28.8-36.6)
(25.5-34.1)
(30.0-40.4)
35.9
(29.6-35.0)
(25.3-32.3)
(32.2-39.6)
(27.5-34.3)
(22.9-32.3)
(29.8-39.2)
(32.7-41.3)
(28.4-40.0)
(36.6-44.4)
(31.5-42.5)
(28.0-36.8)
(35.3-48.5)
San Bernardino
(26.7-32.7)
(21.0-29.0)
(30.9-38.1)
(28.9-34.3)
(29.3-37.9)
(26.8-33.4)
(22.6-32.4)
(27.5-36.9)
San Diego
(23.3-28.5)
(22.1-29.3)
(22.3-29.1)
(25.8-30.8)
(19.6-25.8)
(26.7-33.5)
(21.7-30.7)
(29.2-35.4)
(24.3-30.5)
(32.7-42.3)
(31.6-37.0)
(35.2-41.6)
(31.1-37.9)
(24.9-32.5)
(36.9-45.3)
(28.0-33.2)
(22.1-28.5)
(31.7-40.3)
(25.3-35.7)
(20.0-31.0)
(29.0-42.2)
San Francisco
(20.6-25.4)
(22.0-29.2)
(18.1-26.5)
(24.0-33.6)
(25.9-31.3)
(19.8-26.2)
(29.9-37.9)
Seattle
(23.4-30.8)
(19.1-28.9)
(24.7-34.7)
(28.5-33.1)
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.