[yrbs16.htm, updated 12/06]
Geographic Area/Year
Total
Female
Male
National
2005
25.5
23.5
27.5
CI
(23.3-27.7)
(21.2-25.8)
(24.9-30.1)
2003
28.3
29.0
(26.3-30.3)
(25.4-29.6)
(26.9-31.1)
2001
29.9
26.4
33.5
(27.9-31.9)
(24.5-28.3)
(30.6-36.4)
1999
31.5
28.1
34.9
(29.6-33.4)
(26.0-30.2)
(32.2-37.6)
1997
33.4
28.6
37.3
(31.3-35.5)
(25.8-31.4)
(34.9-39.7)
1995
32.6
36.2
(29.6-35.6)
(24.8-32.4)
(33.3-39.1)
1993
30.0
26.0
33.7
(28.1-31.9)
(23.9-28.1)
(31.5-35.9)
1991
31.3
25.9
36.5
(28.0-34.6)
(23.4-28.4)
(32.3-40.7)
State
Alabama
23.8
19.1
29.1
(20.5-27.1)
(15.7-22.5)
(24.3-33.9)
24.2
21.9
(20.6-27.8)
(17.0-26.8)
(21.9-30.9)
25.0
22.1
27.8
(21.3-28.7)
(18.1-26.1)
(23.4-32.2)
23.6
34.3
(25.9-32.1)
(20.2-27.0)
(30.3-38.3)
28.5
24.4
(25.9-31.1)
(21.9-26.9)
(29.4-35.8)
19.9
30.1
(23.3-26.7)
(17.8-22.0)
(28.2-32.0)
25.4
20.9
(23.5-27.3)
(18.8-23.0)
(27.2-32.8)
30.3
22.6
38.1
(28.0-32.6)
(19.8-25.4)
(34.3-41.9)
Alaska
-
26.5
23.4
(22.4-30.6)
(18.3-28.5)
(24.7-33.5)
Arizona
30.8
(27.5-34.1)
(26.1-33.9)
(28.0-35.0)
33.6
31.8
35.5
(30.1-37.1)
(26.9-36.7)
(31.0-40.0)
Arkansas
29.7
28.8
30.2
(26.6-32.8)
(25.0-32.6)
(26.0-34.4)
23.2
36.7
(25.4-34.6)
(19.2-27.2)
(30.3-43.1)
29.6
37.1
(30.0-36.8)
(24.3-34.9)
(33.5-40.7)
33.1
26.3
39.7
(30.0-36.2)
(22.5-30.1)
(35.6-43.8)
32.2
26.1
38.2
(29.3-35.1)
(23.2-29.0)
(34.6-41.8)
Colorado
30.6
27.9
(24.3-36.9)
(24.7-42.1)
(22.0-33.8)
35.1
31.7
38.3
(31.4-38.8)
(28.3-35.1)
(33.4-43.2)
Connecticut
26.6
28.7
(24.2-31.4)
(21.9-31.3)
(24.9-32.5)
31.2
34.5
(28.1-34.3)
(23.9-31.9)
(31.3-37.7)
Delaware
22.3
(22.2-26.6)
(19.6-25.0)
(23.4-29.8)
23.9
29.3
(24.4-28.8)
(21.2-26.6)
(26.1-32.5)
27.3
23.3
31.4
(25.2-29.4)
(20.6-26.0)
(28.4-34.4)
27.1
(24.5-29.7)
(21.6-28.4)
(25.4-33.2)
District of Columbia
9.2
8.5
10.1
(7.5-10.9)
(6.7-10.3)
(7.7-12.5)
10.3
8.0
12.9
(8.4-12.2)
(6.1-9.9)
(9.8-16.0)
14.9
12.6
17.5
(12.9-16.9)
(10.5-14.7)
(14.6-20.4)
18.3
14.0
22.5
(15.8-20.8)
(11.3-16.7)
(18.4-26.6)
16.4
13.8
19.6
(14.0-18.8)
(11.4-26.2)
(16.0-23.2)
Florida
21.3
20.2
(19.4-23.2)
(18.2-22.2)
(19.8-25.2)
20.5
(21.4-25.0)
(18.5-22.5)
(22.9-28.9)
24.8
(22.7-26.9)
(20.8-25.8)
(23.6-29.0)
Georgia
20.8
21.6
(17.0-24.6)
(15.6-24.2)
(16.7-26.5)
19.8
(17.1-22.5)
(13.3-19.5)
(19.6-26.8)
Hawaii
18.8
18.1
19.3
(15.4-22.2)
(14.5-21.7)
(15.5-23.1)
26.8
(23.1-30.5)
(20.3-27.3)
(25.5-34.5)
25.1
20.6
(21.7-28.5)
(16.3-24.9)
24.0
(20.3-27.7)
(16.6-23.8)
(22.8-33.0)
22.7
24.3
(19.4-26.0)
(17.0-24.8)
(20.1-28.5)
Idaho
(24.0-32.6)
(23.1-31.5)
(23.8-34.8)
21.7
(18.9-27.9)
(17.2-26.2)
(20.2-29.8)
27.2
(22.5-31.9)
(19.7-28.3)
(24.5-35.9)
Indiana
24.6
27.4
(20.5-28.7)
(16.6-26.8)
(23.1-31.7)
28.9
(26.2-31.6)
(24.5-31.1)
(25.7-34.1)
Iowa
31.0
28.4
(25.9-36.1)
(23.0-33.8)
(27.6-39.6)
37.5
32.0
42.9
(33.8-41.2)
(28.0-36.0)
(38.6-47.2)
Kansas
24.5
(25.2-32.8)
(20.8-28.2)
(28.0-38.2)
Kentucky
25.2
26.9
(22.4-28.0)
(19.3-27.5)
(24.1-29.7)
32.8
32.3
(29.4-36.2)
(28.3-36.3)
(29.0-37.8)
30.4
43.4
(32.5-41.7)
(26.5-34.3)
(37.8-49.0)
Louisiana
32.7
37.9
(29.8-35.6)
(24.1-30.7)
(34.5-41.3)
Maine
(21.6-28.8)
(19.0-27.4)
(23.2-31.8)
(23.7-30.9)
(16.9-28.3)
(27.8-35.2)
33.9
(26.9-36.1)
(23.3-34.9)
(29.4-38.4)
33.8
30.5
36.8
(29.7-37.9)
(26.2-34.8)
(32.4-41.2)
30.9
(28.0-33.8)
(25.9-31.7)
(29.1-37.1)
Maryland
19.5
(16.7-24.9)
(14.6-24.4)
(17.3-26.9)
Massachusetts
24.7
28.2
(23.6-29.4)
(21.6-27.8)
(24.9-31.5)
(24.3-29.5)
(21.8-28.6)
(25.9-31.3)
36.4
(30.6-34.8)
(26.1-31.7)
(34.1-38.7)
36.6
(30.4-34.8)
(26.0-31.0)
(33.8-39.4)
29.4
35.8
(30.2-35.2)
(26.7-32.1)
(32.4-39.2)
28.0
38.7
(31.5-35.3)
(25.8-30.2)
(36.3-41.1)
23.1
(20.5-25.7)
(28.3-35.3)
Michigan
(19.4-25.6)
(19.3-24.9)
(18.1-27.3)
(23.9-29.7)
(23.1-32.7)
(25.5-33.1)
(24.4-31.4)
(26.0-35.0)
(27.0-32.8)
(22.1-29.9)
(30.2-37.2)
32.4
29.2
35.7
(27.9-36.9)
(23.3-35.1)
(30.9-40.5)
Mississippi
(21.4-27.8)
(18.7-25.5)
(23.5-31.1)
18.5
25.7
(19.2-25.0)
(14.8-22.2)
(21.3-30.1)
(21.0-29.8)
(15.7-25.5)
(25.5-35.1)
19.2
(20.9-26.9)
(14.8-23.6)
(25.5-32.3)
40.3
(26.4-33.4)
(15.2-24.4)
(34.5-46.1)
18.6
(22.6-30.6)
(14.6-22.6)
(30.4-39.4)
Missouri
24.9
(20.8-29.0)
(18.8-27.6)
(21.2-31.6)
(26.4-34.6)
(25.6-35.4)
34.1
(29.3-38.9)
(26.1-36.9)
(31.7-41.9)
35.6
(26.2-37.8)
(22.4-34.6)
(29.5-41.7)
37.4
(32.3-43.5)
(31.1-43.7)
(32.9-43.5)
39.9
46.8
(37.6-42.2)
(29.3-36.1)
(44.5-49.1)
Montana
34.4
36.0
(31.4-37.4)
(29.1-36.3)
(32.3-39.7)
39.1
(34.2-40.4)
(31.6-38.2)
(35.3-42.9)
41.4
39.3
43.5
(38.6-44.2)
(35.6-43.0)
(39.7-47.3)
43.6
38.8
47.9
(40.7-46.5)
(35.4-42.2)
(43.6-52.2)
44.1
40.4
47.6
(41.6-46.6)
(37.2-43.6)
(43.7-51.5)
43.1
38.5
47.5
(40.2-46.0)
(35.3-41.7)
(43.7-51.3)
39.4
(37.6-45.2)
(35.1-43.7)
(38.9-47.9)
Nebraska
29.8
(27.3-32.3)
(24.7-29.9)
(28.7-35.7)
31.6
(29.7-34.7)
(28.3-34.9)
(29.3-35.9)
Nevada
22.8
26.7
(22.0-27.6)
(19.3-26.3)
(22.6-30.8)
(25.3-30.3)
(25.3-32.5)
(23.3-30.1)
(28.7-36.1)
(27.4-36.2)
(27.7-38.5)
(32.5-38.7)
(28.4-36.2)
(34.5-42.5)
(28.7-35.3)
(25.7-34.7)
(28.6-38.8)
35.4
(29.8-36.4)
(27.1-34.9)
(30.9-39.9)
(28.7-34.9)
(25.3-33.1)
(30.4-38.4)
New Hampshire
27.6
(24.5-32.3)
(23.5-31.7)
(24.1-34.7)
(25.9-35.3)
(23.2-32.6)
(27.4-39.6)
32.9
37.6
(30.2-35.6)
(25.1-31.1)
(33.8-41.4)
(28.7-32.9)
(24.1-29.5)
(31.2-37.8)
New Jersey
(22.0-32.4)
(22.3-33.3)
(20.0-33.2)
New Mexico
29.5
(25.6-31.6)
(24.0-30.4)
(25.9-33.1)
New York
21.4
26.2
(21.4-26.4)
(18.3-24.5)
(23.2-29.2)
25.3
23.0
(22.7-27.9)
(20.5-25.5)
(24.0-31.0)
(26.1-31.5)
(22.4-27.4)
(28.4-36.8)
(25.9-31.9)
(21.1-27.5)
(29.5-37.5)
North Carolina
(19.1-27.1)
(16.8-23.6)
(21.0-31.0)
21.0
16.7
(16.2-25.8)
(13.1-20.3)
(18.1-32.1)
20.7
18.7
(18.0-23.4)
(15.5-21.9)
(19.1-26.5)
16.2
(20.3-25.7)
(13.8-18.6)
(26.0-34.0)
North Dakota
(30.1-37.5)
(26.5-35.9)
(31.3-41.1)
39.5
40.1
(35.6-43.4)
(33.9-43.5)
(34.8-45.4)
41.5
37.2
45.5
(37.9-45.1)
(32.5-41.9)
(41.2-49.8)
46.2
42.3
50.0
(42.3-50.1)
(38.0-46.6)
(45.5-54.5)
Ohio
(22.4-29.8)
(22.0-30.6)
(21.5-30.5)
(21.7-31.5)
(18.6-26.4)
(23.3-37.5)
34.8
(33.6-41.2)
(31.0-38.6)
(35.4-44.8)
(26.7-33.9)
(23.3-30.9)
(29.5-37.7)
(27.2-33.4)
(24.6-32.0)
Oklahoma
(23.6-29.6)
(21.2-27.4)
(25.0-32.8)
34.0
39.2
(30.8-37.2)
(24.0-33.0)
(34.5-43.9)
Rhode Island
(22.4-26.6)
(19.1-24.7)
(24.1-30.1)
(23.6-30.0)
(24.5-31.5)
30.7
(27.8-33.6)
(22.3-30.5)
(28.3-36.1)
(23.9-32.5)
(31.8-40.6)
South Carolina
21.2
25.8
(20.6-26.6)
(17.3-25.1)
(21.4-30.2)
(18.4-22.8)
(28.1-32.7)
(22.8-26.8)
(18.7-22.9)
(26.0-31.6)
(25.1-29.5)
(18.4-23.2)
(31.0-36.4)
20.4
(23.2-26.8)
(18.2-22.6)
(27.2-31.8)
27.0
(25.1-28.9)
(19.3-23.3)
(29.7-35.5)
South Dakota
34.2
(30.5-37.9)
(26.8-35.2)
(31.5-43.1)
40.0
(30.3-42.5)
(34.6-45.4)
(32.0-41.0)
(28.0-39.0)
(34.1-44.7)
46.1
49.0
(39.9-52.3)
(36.9-49.3)
(41.9-56.1)
45.2
40.5
49.9
(41.4-49.0)
(35.4-45.6)
(44.0-55.8)
43.3
(32.0-47.0)
(28.3-42.7)
(35.1-51.5)
44.3
38.0
50.5
(40.0-48.6)
(31.8-44.2)
(46.7-54.3)
41.0
41.8
(33.6-48.4)
(31.8-48.8)
(34.7-48.9)
Tennessee
(22.1-27.7)
(19.1-25.1)
(23.4-31.8)
(21.4-29.6)
(18.9-24.3)
(23.6-35.0)
Texas
(26.4-32.8)
(22.6-29.8)
(29.6-36.6)
23.7
(22.9-28.5)
(20.8-26.6)
(28.8-33.8)
(25.3-30.5)
(31.0-37.8)
Utah
8.8
8.7
8.9
(6.4-11.2)
(5.5-11.9)
(5.6-12.2)
14.3
13.6
14.8
(11.2-17.4)
(10.5-16.7)
(10.3-19.3)
10.9
7.6
(7.4-14.4)
(3.6-11.6)
(9.8-18.2)
15.8
12.8
18.2
(11.6-20.0)
(8.9-16.7)
(13.0-23.4)
16.5
(13.4-19.6)
(10.2-18.4)
(14.9-21.3)
15.2
14.4
16.1
(11.8-18.6)
(10.4-18.4)
(12.6-19.6)
15.3
(14.8-18.6)
(13.0-17.6)
(15.7-20.5)
16.6
13.9
(13.3-19.9)
(10.7-17.1)
Vermont
(22.0-27.8)
(18.4-23.4)
(25.4-32.0)
(23.9-28.9)
(22.6-26.4)
31.9
(25.7-32.3)
(22.3-29.7)
(28.8-35.0)
37.0
(29.8-35.0)
(33.9-40.1)
35.3
(31.5-39.1)
(26.8-35.0)
(35.7-43.3)
(33.1-38.9)
(26.2-34.4)
(38.9-44.1)
(29.0-33.8)
(33.1-38.3)
West Virginia
(25.6-32.0)
(21.1-29.5)
(27.7-36.7)
(29.3-37.7)
(26.6-38.8)
(28.0-40.4)
38.9
(31.7-39.3)
(26.5-37.1)
(33.9-43.9)
46.0
(34.7-42.7)
(28.1-35.5)
(40.8-51.2)
(36.7-40.9)
(28.5-34.1)
(42.6-49.4)
44.7
(36.8-42.0)
(31.4-36.8)
(41.3-48.1)
Wisconsin
(28.2-33.8)
(25.3-32.9)
(29.5-36.3)
(25.2-31.2)
(22.4-29.2)
(25.8-34.8)
(30.8-37.6)
(27.4-34.4)
(32.9-41.9)
(30.9-37.9)
(25.5-33.3)
(33.5-44.7)
35.9
(21.1-31.1)
(31.5-40.3)
(26.3-31.7)
(22.9-29.1)
(28.9-34.9)
Wyoming
(29.4-34.6)
(26.1-32.9)
34.6
(30.3-38.9)
(29.0-38.6)
(30.2-41.2)
42.5
(35.4-40.8)
(30.5-36.5)
(38.7-46.3)
(36.3-42.7)
(32.0-38.8)
40.6
44.0
(37.2-44.0)
(32.9-41.1)
(39.9-48.1)
(35.2-42.4)
(30.3-39.0)
(38.4-47.4)
City
Baltimore
11.5
8.6
(9.9-13.1)
(7.0-10.2)
(12.3-17.5)
Boston
15.4
13.4
17.3
(13.2-17.6)
(10.3-16.5)
(14.0-20.6)
15.7
15.5
(13.4-18.0)
(13.1-19.1)
(12.5-18.5)
15.6
(15.5-20.7)
(12.5-18.7)
(17.0-24.2)
17.4
13.1
(14.9-19.9)
(9.9-16.3)
(18.2-25.6)
(15.5-20.9)
(11.7-18.1)
(18.1-24.7)
18.4
22.4
(16.3-20.5)
(11.3-17.5)
(19.2-25.6)
20.3
15.1
25.6
(17.9-22.7)
(12.1-18.1)
(22.0-29.2)
Broward County, FL
17.6
16.0
(15.0-20.2)
(13.1-18.9)
(15.3-22.9)
20.1
(18.0-22.4)
(17.4-23.2)
(17.5-22.7)
Charlotte-Mecklenburg, NC
(16.9-22.3)
(14.1-20.9)
(18.5-24.7)
Chicago
22.2
(19.0-25.4)
(16.5-25.5)
(19.8-27.4)
(13.5-22.9)
(16.2-30.0)
(17.4-25.4)
(15.5-23.7)
(17.2-28.8)
(16.6-22.0)
(15.6-21.0)
(14.7-25.7)
24.1
(17.2-22.6)
(14.7-18.5)
(18.5-29.7)
17.8
(15.0-20.6)
(12.3-18.9)
(16.4-23.8)
(15.6-20.6)
(12.9-17.7)
(16.6-25.4)
18.9
(16.0-21.8)
(11.6-17.2)
(19.3-28.3)
Dallas
(18.9-24.9)
(15.0-21.2)
(21.7-29.9)
(18.0-23.6)
(15.0-22.0)
(20.0-26.8)
(18.1-23.3)
(17.6-23.8)
(16.8-24.8)
21.1
(18.6-23.6)
(15.9-21.1)
(20.0-27.4)
18.0
(18.2-23.0)
(15.2-20.8)
(19.5-26.9)
19.0
(22.0-25.8)
(16.7-21.3)
(25.9-32.3)
(23.3-26.1)
(17.7-20.9)
(27.9-33.5)
22.9
27.7
(21.1-24.7)
(16.3-20.3)
(25.8-29.6)
DeKalb County, GA
9.0
8.2
9.7
(7.7-10.3)
(6.3-10.1)
(7.8-11.6)
9.4
10.7
(8.7-11.5)
(7.3-11.5)
(8.9-12.5)
Detroit
9.5
7.2
(6.9-10.3)
(7.5-11.5)
(4.5-9.9)
10.0
10.5
(7.9-12.1)
(7.9-13.1)
(6.9-11.9)
(10.3-14.9)
(8.7-14.3)
(11.6-16.4)
12.4
(13.2-16.6)
(10.7-14.1)
(15.2-21.0)
Hillsborough County, FL
(19.7-25.3)
(16.1-23.1)
(21.2-29.2)
Ft. Lauderdale
19.4
(19.0-23.2)
(16.9-21.9)
(19.3-25.7)
(16.9-23.3)
(14.9-22.5)
(17.7-25.5)
(19.1-26.1)
(15.0-21.8)
(22.2-31.4)
16.3
(13.1-19.5)
(15.5-21.7)
15.9
(17.6-23.0)
(12.9-18.9)
(21.0-28.4)
22.0
17.2
(18.3-25.7)
(13.3-21.1)
(22.8-32.8)
Houston
(22.5-28.3)
(20.2-28.0)
(22.8-31.0)
(17.8-23.2)
(13.9-20.5)
(19.8-27.0)
(18.7-29.3)
(14.0-24.6)
(23.0-36.2)
(18.8-27.2)
(12.6-24.2)
(23.2-31.6)
Los Angeles
19.7
(17.2-22.2)
(16.8-24.4)
(14.9-22.3)
21.8
20.0
(17.2-26.4)
(15.4-24.6)
(17.4-29.8)
(19.3-24.5)
(18.6-27.4)
(18.3-22.7)
Memphis
13.0
(10.9-15.1)
(10.5-15.5)
(9.9-16.1)
11.0
(8.5-11.7)
(7.2-11.2)
(8.5-13.5)
Miami
(16.6-20.8)
(15.1-20.1)
(16.8-22.4)
16.8
(14.8-18.8)
(11.4-15.8)
(16.8-23.0)
(17.1-21.1)
(12.8-18.2)
(20.2-25.2)
(16.5-22.5)
(18.5-26.1)
(18.1-25.3)
(14.5-20.3)
(21.0-30.8)
16.9
11.1
(14.5-19.3)
(8.5-13.7)
(19.0-25.8)
(13.1-15.5)
(8.1-13.9)
(14.6-20.6)
14.5
(13.4-21.0)
(11.0-18.0)
(15.3-24.5)
Milwaukee
14.7
(12.9-17.5)
(12.1-17.3)
(11.8-18.8)
(13.7-19.5)
(10.4-15.4)
(16.0-25.0)
New Orleans
12.5
12.1
(10.8-14.2)
(9.3-14.9)
(9.3-15.7)
(9.2-15.0)
(12.1-18.5)
13.3
(13.1-17.3)
(10.7-15.9)
(14.8-20.2)
(16.4-21.2)
(13.1-18.7)
(18.3-25.9)
(15.3-19.3)
(12.6-17.2)
(17.1-23.3)
New York City
14.6
(12.1-15.1)
(10.7-14.5)
(12.8-16.4)
(14.4-17.0)
(13.5-16.3)
(14.9-18.3)
17.9
(15.8-20.0)
(13.7-19.1)
(15.8-22.8)
14.2
(14.3-18.9)
(12.9-15.5)
(14.5-23.7)
(15.2-21.6)
(18.4-26.8)
Orange County, FL
(18.1-23.7)
(16.3-23.7)
(18.1-25.5)
(13.3-21.5)
(11.3-22.3)
(12.5-23.3)
Palm Beach
(18.3-23.9)
(17.6-23.4)
(17.1-26.3)
(21.7-27.3)
(17.9-24.5)
(24.4-31.8)
(22.7-29.5)
(20.7-27.9)
(23.9-32.3)
(28.8-34.6)
(21.1-28.1)
(34.2-42.8)
Philadelphia
12.2
(9.5-14.9)
(6.7-12.3)
(11.2-18.6)
(11.0-16.2)
(10.4-16.4)
17.0
15.0
(14.1-19.9)
(11.9-18.1)
(15.1-22.7)
(14.7-20.9)
(12.3-18.1)
(16.6-24.6)
(12.1-17.5)
(16.1-24.3)
(16.2-24.0)
(10.6-21.8)
(22.0-27.4)
San Bernardino
(20.6-27.2)
(18.9-26.5)
(20.0-29.0)
(19.2-24.8)
(17.3-23.7)
(18.9-27.5)
(17.4-24.8)
(15.1-23.3)
(17.0-28.4)
San Diego
(20.2-24.2)
(19.5-25.9)
(18.1-24.1)
(19.5-24.9)
(19.5-27.7)
(21.5-27.1)
(21.2-29.4)
(19.8-26.8)
(19.4-25.2)
(16.8-23.4)
(20.8-28.8)
(24.6-29.6)
(21.3-26.5)
(26.5-33.9)
(21.6-26.2)
(17.9-24.7)
(23.7-30.3)
(20.0-24.8)
(16.5-22.7)
(22.5-28.5)
(17.8-27.4)
(25.2-31.8)
San Francisco
11.6
11.8
11.3
(9.8-13.4)
(9.7-13.9)
(8.9-13.7)
13.2
(10.6-15.8)
(9.2-15.6)
(10.8-17.2)
(10.9-14.3)
(8.7-13.5)
(11.4-16.6)
Seattle
21.5
(17.5-25.5)
(16.0-27.2)
(17.6-25.2)
17.7
(18.6-22.8)
(14.9-20.5)
(21.2-27.2)
(17.3-21.5)
(14.1-18.7)
(19.1-25.7)
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.