[yrbs13.htm, updated 12/06]
Geographic Area/Year
Total
Female
Male
National
2005
43.3
42.8
43.8
CI
(40.6-46.0)
(39.7-45.9)
(41.1-46.5)
2003
44.9
45.8
(42.5-47.3)
(43.3-48.3)
(41.2-46.4)
2001
47.1
45.0
49.2
(45.0-49.2)
(42.8-47.2)
(46.4-52.0)
1999
50.0
47.7
52.3
(47.5-52.5)
(44.9-50.5)
(49.4-55.2)
1997
50.8
47.8
53.3
(48.0-53.6)
(43.9-51.7)
(50.9-55.7)
1995
51.6
49.9
53.2
(49.3-53.9)
(46.4-53.4)
(50.6-55.8)
1993
48.0
45.9
50.1
(45.9-50.1)
(43.3-48.5)
(47.7-52.5)
1991
48.8
52.7
(47.4-54.2)
(45.6-52.0)
(48.9-56.5)
State
Alabama
39.4
36.8
42.0
(34.4-44.4)
(31.2-42.4)
(35.9-48.1)
40.2
40.5
39.9
(36.2-44.2)
(34.6-46.4)
(34.4-45.4)
42.6
42.9
(39.1-46.1)
(39.1-46.7)
(37.1-46.9)
45.4
41.5
49.0
(42.6-48.2)
(38.3-44.7)
(45.6-52.4)
46.7
49.4
(44.0-49.4)
(40.6-47.0)
(46.2-52.6)
43.9
40.6
47.2
(41.3-46.5)
(37.5-43.7)
(44.2-50.2)
40.9
47.0
(37.4-44.4)
(44.0-50.0)
46.8
(43.5-50.1)
(36.6-44.4)
(48.9-57.5)
Alaska
-
38.7
37.4
39.6
(34.7-42.7)
(32.6-42.2)
(34.9-44.3)
Arizona
48.3
46.0
(43.7-50.5)
(43.7-52.9)
(41.7-50.3)
50.9
51.0
50.7
(46.8-55.0)
(45.4-56.6)
(45.9-55.5)
Arkansas
43.1
(39.2-47.0)
(39.6-50.4)
(35.9-45.1)
47.9
44.1
51.9
(43.4-52.4)
(39.6-48.6)
(46.2-57.6)
46.4
50.2
(44.2-52.4)
(41.2-51.6)
(45.0-55.4)
54.3
(46.7-53.5)
(42.0-49.6)
(50.1-58.5)
51.5
46.2
56.6
(49.0-54.0)
(42.5-49.9)
(54.0-59.2)
Colorado
47.4
(38.8-56.0)
(39.2-59.6)
(37.8-53.8)
52.8
52.6
52.9
(48.9-56.7)
(48.2-57.0)
(48.3-57.5)
Connecticut
45.3
45.5
(41.1-49.5)
(39.8-51.2)
(40.7-49.3)
51.3
54.1
(48.8-56.4)
(46.7-55.9)
(49.8-58.4)
Delaware
43.4
(40.8-45.4)
(39.8-45.4)
(39.9-46.9)
46.9
43.7
(42.8-48.0)
(43.8-50.0)
(40.1-47.3)
(43.9-48.9)
(41.7-48.3)
(44.4-51.2)
(44.1-49.7)
(43.7-51.1)
(42.9-50.5)
District of Columbia
23.1
24.5
21.7
(20.3-25.9)
(20.3-28.7)
(18.6-24.8)
33.8
30.4
37.7
(30.4-37.2)
(26.7-34.1)
(33.5-41.9)
36.7
37.0
36.6
(33.7-39.7)
(33.8-40.2)
(31.9-41.3)
36.5
38.9
(34.8-40.6)
(32.6-40.4)
(34.6-43.2)
41.3
40.1
42.7
(38.3-44.3)
(36.8-43.4)
(38.6-46.8)
Florida
39.7
41.2
38.3
(36.9-42.5)
(38.4-44.0)
(34.7-41.9)
41.9
(40.6-44.8)
(40.9-46.7)
(38.9-44.9)
44.6
(42.3-47.7)
(42.1-48.9)
(41.7-47.5)
Georgia
41.0
38.8
(35.7-44.1)
(36.3-45.7)
(33.1-44.5)
36.0
39.5
(34.9-40.5)
(32.1-39.9)
(35.6-43.4)
Hawaii
34.8
34.6
(30.8-38.8)
(29.1-40.5)
(31.0-38.2)
43.2
(40.1-49.1)
(37.0-49.4)
(42.8-49.2)
40.3
(35.8-44.8)
(33.6-44.0)
(35.8-47.2)
42.5
(37.1-44.7)
(35.4-43.4)
(36.7-48.3)
38.4
38.1
(34.3-42.5)
(33.9-43.5)
(32.7-43.5)
Idaho
39.8
(34.7-44.9)
(32.4-44.4)
(35.1-46.9)
34.0
35.4
(30.0-39.6)
(29.5-38.5)
(29.2-41.6)
(35.6-45.6)
(33.4-43.2)
(37.0-48.6)
Indiana
41.4
41.6
(37.2-45.6)
(36.0-46.6)
(37.0-46.2)
44.5
(41.8-48.0)
(41.7-49.1)
(39.5-49.5)
Iowa
46.5
(38.7-48.9)
(35.2-46.8)
(40.6-52.4)
52.1
48.6
55.7
(47.6-56.6)
(43.2-54.0)
(50.1-61.3)
Kansas
(40.5-47.3)
(39.3-47.5)
Kentucky
38.0
(33.9-40.9)
(32.0-41.6)
(34.7-41.3)
45.1
44.2
46.3
(41.4-48.8)
(40.3-48.1)
(41.8-50.8)
49.3
53.8
(44.2-54.4)
(48.3-59.3)
Louisiana
54.9
56.7
(51.9-57.9)
(50.1-56.3)
(52.8-60.6)
Maine
43.0
(38.7-47.3)
(37.1-48.9)
(38.3-48.5)
42.2
(38.7-45.7)
(35.5-47.1)
(38.6-47.0)
49.6
(43.1-52.5)
(43.7-55.5)
(40.2-51.4)
53.0
(47.5-55.1)
(46.1-53.1)
(48.0-58.0)
53.1
(48.1-56.5)
(47.1-56.1)
(47.0-59.2)
Maryland
37.6
(35.6-44.0)
(35.7-48.1)
(32.6-42.6)
Massachusetts
47.6
(45.1-50.5)
(44.3-50.9)
(44.8-51.2)
45.7
(43.4-48.0)
(42.3-48.5)
51.7
(50.8-55.2)
(48.8-54.6)
(51.9-56.7)
51.8
(49.8-53.8)
(47.8-52.6)
(50.6-56.0)
53.5
55.3
(51.2-55.8)
(49.0-54.6)
(52.2-58.4)
50.4
56.0
(50.7-55.7)
(47.2-53.6)
(53.3-58.7)
(45.1-49.7)
(42.2-48.8)
(45.7-52.7)
Michigan
35.8
(34.7-41.5)
(36.6-44.0)
(31.5-40.1)
44.0
45.6
42.3
(41.3-46.7)
(42.7-48.5)
(38.7-45.9)
47.3
(42.6-49.8)
(43.7-50.9)
(40.9-49.1)
48.5
49.8
(45.3-51.7)
(42.9-51.9)
(46.6-53.0)
50.5
48.7
52.2
(46.1-54.9)
(43.8-53.6)
(47.3-57.1)
Mississippi
41.8
40.0
(38.4-45.2)
(35.7-44.3)
(40.4-47.6)
41.7
(39.3-44.1)
(35.9-45.3)
(40.0-45.8)
38.6
(38.6-46.4)
(33.4-43.8)
(42.3-51.1)
(42.9-49.9)
(37.8-48.8)
(46.5-53.3)
56.1
(43.5-53.5)
(35.8-46.2)
(50.2-62.0)
(43.8-50.2)
(36.0-47.4)
(49.8-54.6)
Missouri
40.8
40.4
(36.8-44.8)
(35.0-45.8)
(37.6-44.8)
49.7
(45.0-53.4)
(43.0-54.0)
(45.4-54.0)
46.1
(43.5-51.7)
(41.6-50.6)
(44.3-54.1)
(46.0-53.8)
(41.6-51.4)
(48.8-57.8)
51.4
(46.4-56.4)
(46.5-59.5)
(44.8-54.8)
53.9
57.4
(53.2-58.2)
(51.0-56.8)
(54.1-60.7)
Montana
(45.6-51.6)
(44.5-51.5)
(45.3-53.1)
49.5
48.9
(46.2-52.8)
(45.4-52.4)
(45.5-53.7)
52.5
(51.4-56.8)
(48.5-56.5)
(52.0-59.4)
57.6
55.0
60.1
(54.7-60.5)
(51.4-58.6)
(56.2-64.0)
59.0
57.5
60.4
(56.4-61.6)
(53.6-61.4)
(56.6-64.2)
58.2
61.2
(55.5-60.9)
(51.6-58.2)
(57.2-65.2)
57.2
(52.4-59.0)
(50.1-58.1)
(52.8-61.6)
Nebraska
(40.4-45.4)
(38.5-43.9)
(40.6-48.2)
(44.0-49.0)
(45.8-52.8)
(40.5-47.1)
Nevada
(38.0-44.8)
(35.9-44.9)
(37.5-47.1)
(40.4-46.4)
(42.5-50.1)
47.5
(43.9-51.1)
(44.5-52.7)
(40.9-51.9)
51.1
54.6
(49.7-56.3)
(46.6-55.6)
(50.7-58.5)
(46.2-53.6)
(45.7-55.3)
52.0
(47.4-54.4)
(47.9-56.1)
(45.4-54.8)
(45.5-52.9)
(44.9-53.9)
(44.6-53.4)
New Hampshire
44.8
(39.4-48.6)
(40.2-49.4)
(37.3-49.5)
(41.8-52.4)
(41.1-52.7)
(40.4-53.8)
55.1
(50.2-56.0)
(47.9-54.3)
(51.0-59.2)
(47.3-51.7)
(48.4-55.2)
New Jersey
(41.3-51.7)
(43.7-54.3)
(37.3-50.5)
New Mexico
42.4
(38.5-46.1)
(37.8-46.0)
(38.3-46.5)
New York
43.5
(40.5-46.3)
(39.7-47.3)
(40.0-46.2)
(41.2-47.2)
(41.8-48.2)
(39.0-47.2)
(46.6-52.6)
(44.6-50.8)
(47.3-55.7)
48.2
(45.0-51.4)
(42.0-48.8)
(46.5-55.3)
North Carolina
44.4
(38.0-46.6)
(36.2-44.0)
(39.3-49.5)
37.3
(34.1-44.7)
(31.9-42.7)
(35.1-47.9)
38.2
35.9
(35.2-41.2)
(32.0-39.8)
(36.1-44.9)
(40.0-47.4)
(35.2-44.2)
(43.5-52.3)
North Dakota
(45.2-52.8)
(42.7-53.9)
(45.0-54.2)
54.2
55.8
(50.8-57.6)
(51.2-60.4)
(48.0-57.2)
59.2
56.4
61.7
(55.9-62.5)
(52.2-60.6)
(57.1-66.3)
60.5
62.6
(57.1-63.9)
(53.3-63.1)
(58.8-66.4)
Ohio
(38.6-46.2)
(38.4-49.0)
(36.2-46.2)
40.7
(37.5-46.9)
(35.2-46.2)
(38.2-49.2)
55.5
57.9
(52.1-58.9)
(49.1-56.9)
(54.2-61.6)
44.3
48.4
(42.6-50.0)
(40.1-48.5)
(44.4-52.4)
(42.8-50.2)
(39.8-49.2)
Oklahoma
(37.3-43.7)
(37.7-45.1)
(35.9-43.5)
(39.2-49.0)
(47.4-54.8)
Rhode Island
(40.4-45.0)
(39.8-46.0)
(39.4-46.0)
46.6
(40.7-48.3)
(43.1-50.1)
(37.4-47.0)
50.3
(47.1-53.5)
(43.1-51.5)
(50.1-56.5)
53.7
(48.0-56.4)
(46.1-55.7)
(49.2-58.2)
South Carolina
42.1
(40.0-46.4)
(37.2-47.0)
(40.2-48.2)
(43.0-47.8)
(44.4-50.4)
(42.7-47.9)
(40.9-47.3)
(43.5-49.5)
(44.3-48.5)
(39.4-44.4)
(48.3-53.7)
(42.2-46.4)
(37.3-42.9)
(45.9-50.9)
50.6
(44.8-49.0)
(40.3-45.9)
(48.1-53.1)
South Dakota
(42.5-50.7)
(39.7-48.7)
(42.3-55.5)
(45.2-55.2)
(43.0-56.8)
(45.4-55.4)
(45.3-55.1)
(42.1-53.9)
(46.4-58.2)
57.7
60.6
(53.7-64.7)
(51.7-63.7)
(53.3-67.9)
60.2
62.2
(55.9-64.5)
(54.6-61.8)
(56.1-68.3)
54.0
(46.6-61.4)
(44.8-58.8)
(47.1-65.1)
58.4
63.8
(56.6-65.8)
(52.2-64.6)
(59.6-68.0)
(51.6-64.2)
(50.3-65.1)
(51.0-64.8)
Tennessee
(38.1-45.5)
(35.7-46.3)
(39.0-45.6)
41.1
(37.1-45.1)
(36.3-42.7)
(36.8-48.6)
Texas
49.1
(43.6-51.0)
(42.4-48.6)
(44.0-54.2)
(39.2-46.8)
(38.9-47.7)
(37.7-47.3)
(45.4-51.8)
(44.8-52.0)
(45.0-52.6)
Utah
15.8
15.7
(12.0-19.6)
(11.6-19.8)
(10.8-20.8)
21.3
19.5
22.8
(17.0-25.6)
(15.1-23.9)
(15.3-30.3)
17.9
14.8
20.8
(13.6-22.2)
(09.8-19.8)
(14.9-26.7)
22.7
24.0
(17.8-27.6)
(15.6-26.0)
(18.6-29.4)
24.3
23.2
25.1
(20.1-28.5)
(18.1-28.3)
(20.5-29.7)
22.4
21.9
(18.6-26.2)
(16.8-27.0)
(19.3-26.3)
26.0
25.4
26.5
(23.4-28.6)
(22.5-28.3)
(23.4-29.6)
26.6
24.6
28.5
(22.8-30.4)
(20.5-28.7)
(24.4-32.6)
Vermont
(38.8-44.8)
(36.7-42.5)
(40.6-46.4)
(40.0-47.8)
48.1
(43.3-52.9)
(40.7-53.1)
(45.4-53.0)
(47.2-51.8)
(44.4-49.8)
(49.1-54.3)
56.8
(50.7-59.1)
(49.2-56.4)
(51.4-62.2)
56.5
59.5
(52.9-60.1)
(49.1-57.3)
(56.3-62.7)
54.8
(49.4-55.8)
(47.0-53.8)
(51.9-57.7)
West Virginia
37.5
(38.7-44.3)
(34.0-41.0)
(40.8-49.8)
(40.8-48.0)
(39.0-52.2)
(37.3-49.3)
(45.3-51.9)
(43.1-50.7)
(46.2-54.2)
58.9
(47.9-55.1)
(41.3-47.9)
(53.5-64.3)
57.3
(48.6-54.6)
(41.4-49.8)
(53.9-60.7)
(49.7-55.7)
(45.6-53.2)
(53.0-59.0)
Wisconsin
(46.3-52.1)
(45.1-53.5)
(46.1-52.3)
(44.1-50.5)
(43.0-51.2)
(42.7-51.9)
54.4
(50.0-58.2)
(49.4-59.4)
(49.4-58.2)
(48.0-55.6)
(43.1-51.9)
(50.5-61.1)
54.7
(46.7-54.3)
(41.2-51.4)
(50.9-58.5)
(45.0-51.2)
(43.2-51.8)
(45.3-52.1)
Wyoming
44.7
(42.5-48.3)
(41.1-48.3)
(42.4-49.6)
(44.7-53.3)
(44.1-53.9)
(43.7-54.7)
(48.4-54.2)
(45.1-52.1)
(50.3-57.7)
(51.3-58.3)
(52.3-60.5)
58.1
(51.3-58.7)
(47.2-56.6)
(54.1-62.1)
(48.1-56.1)
(42.6-52.4)
(51.8-61.0)
City
Baltimore
29.4
28.7
30.1
(26.9-31.9)
(26.0-31.4)
(26.4-33.8)
Boston
35.7
34.7
(32.4-39.0)
(30.3-39.1)
(31.9-41.1)
(34.5-41.7)
(34.4-43.0)
(32.5-42.1)
(38.7-44.7)
(38.0-45.4)
(37.7-46.1)
37.1
32.8
(33.9-40.3)
(29.2-36.4)
(36.3-46.5)
(36.7-43.5)
(31.2-40.6)
(40.5-48.9)
39.0
35.5
(35.6-42.4)
(31.1-39.9)
(37.9-47.1)
35.6
(36.9-43.3)
(31.6-39.6)
(40.2-49.6)
Broward County, FL
(33.9-42.5)
(34.0-42.8)
(39.0-45.0)
(36.2-43.4)
Charlotte-Mecklenburg, NC
(35.8-42.2)
(34.3-41.9)
Chicago
(38.7-48.1)
(36.5-51.5)
(37.8-48.0)
(37.3-48.3)
(36.6-49.8)
(35.4-49.4)
(36.7-47.9)
(37.1-47.3)
(35.1-49.5)
(35.6-43.2)
(36.2-45.8)
(32.7-42.7)
36.9
(33.8-40.0)
(32.5-40.5)
(32.2-42.4)
(33.5-41.3)
(33.3-43.3)
39.2
(36.0-42.4)
(34.9-42.3)
(34.6-44.8)
(38.5-45.7)
(35.8-44.4)
(38.7-49.5)
Dallas
(41.5-47.1)
(40.3-48.9)
(39.5-48.5)
(39.6-45.2)
(39.4-47.0)
(40.7-47.3)
(38.5-47.5)
(39.6-45.6)
(38.0-45.0)
(38.6-48.2)
(40.5-45.3)
(39.3-46.1)
(38.8-47.4)
(46.4-50.4)
(43.8-49.4)
(47.0-53.4)
(45.0-47.8)
(40.3-44.5)
(48.8-53.4)
(42.4-46.4)
(37.3-42.7)
(47.0-51.2)
DeKalb County, GA
27.1
27.0
(25.0-29.2)
(24.3-29.9)
(23.6-30.4)
31.5
25.8
(26.5-30.9)
(28.6-34.4)
(22.7-28.9)
Detroit
31.1
33.7
27.9
(27.6-34.6)
(29.7-37.7)
(23.3-32.5)
30.9
34.4
(27.5-34.3)
(29.4-39.4)
(23.4-30.8)
32.6
33.9
31.3
(29.6-35.6)
(29.7-38.1)
(28.0-34.6)
35.0
(32.6-37.4)
(31.9-38.9)
(31.4-37.8)
Hillsborough County, FL
(37.7-44.9)
(36.5-44.9)
(36.9-46.5)
Ft. Lauderdale
(40.6-47.2)
(40.4-49.0)
(39.0-47.4)
43.6
(40.3-47.9)
(40.0-49.2)
(38.9-48.3)
(40.1-47.9)
(37.1-46.1)
(36.0-44.2)
(35.4-44.6)
(40.8-47.0)
(38.7-46.9)
(40.6-49.4)
(42.6-51.6)
(43.1-54.5)
Houston
(38.1-48.1)
(37.8-44.4)
(40.2-47.8)
(33.6-43.8)
(38.9-50.9)
(35.0-49.2)
(42.3-54.7)
(36.5-49.9)
(40.1-50.9)
Los Angeles
35.2
(36.0-41.4)
(38.1-45.7)
(29.7-40.7)
(37.8-47.2)
(35.1-47.1)
(35.8-43.8)
(36.7-47.3)
Memphis
33.2
34.9
31.2
(29.2-37.2)
(30.2-39.6)
(26.1-36.3)
30.2
29.9
(27.1-33.3)
(25.4-34.4)
Miami
(38.0-43.6)
(38.0-44.4)
(36.4-44.2)
38.5
36.3
(34.8-40.0)
(34.9-42.1)
(32.7-39.9)
(37.2-42.6)
(33.7-41.1)
(38.1-45.1)
(36.7-43.9)
(38.3-47.5)
(38.4-46.0)
(36.4-43.6)
(38.7-49.7)
36.4
(37.4-44.6)
(31.6-41.2)
(41.4-49.4)
(33.8-39.8)
(32.3-39.7)
(37.1-48.5)
(33.4-47.8)
(39.6-50.2)
Milwaukee FL
34.3
(32.8-38.2)
(32.3-40.3)
(30.2-38.4)
33.6
(33.4-40.8)
(29.7-37.5)
(35.1-46.5)
New Orleans
32.1
(33.3-38.7)
(34.9-43.1)
(28.0-36.2)
(30.6-36.8)
(27.5-34.9)
(32.0-41.4)
37.8
(33.8-41.8)
(33.9-44.5)
(31.6-40.4)
(44.9-52.5)
(42.3-52.9)
(42.9-48.3)
(41.7-49.9)
New York City
(32.9-38.1)
(31.3-38.3)
(33.0-38.6)
(33.6-37.4)
(34.0-38.6)
(32.2-37.0)
(37.2-46.2)
35.1
(31.5-38.7)
(34.4-46.6)
(35.5-43.9)
(32.9-41.9)
(35.1-49.1)
Orange County, FL
(36.3-42.5)
(36.8-45.2)
(32.9-42.5)
(35.1-44.1)
(33.8-47.4)
(32.7-43.9)
Palm Beach
(35.9-42.5)
(35.6-43.8)
(33.2-43.8)
(41.4-47.4)
(41.9-49.7)
(41.9-48.9)
(40.7-49.1)
(44.2-52.2)
(53.4-62.4)
Philadelphia
29.8
29.6
(26.7-32.9)
(25.3-33.9)
(26.2-33.4)
31.6
34.1
28.8
(27.7-35.5)
(28.7-39.5)
(24.5-33.1)
33.0
(30.1-35.9)
(28.3-36.9)
(28.8-37.6)
36.1
(33.2-39.4)
(33.0-40.2)
(31.6-40.6)
(32.7-45.3)
(34.6-47.4)
(44.4-51.8)
San Bernardino
39.3
(35.6-42.8)
(34.1-43.7)
(34.7-43.9)
34.5
(34.4-41.2)
(36.7-44.9)
(29.6-39.4)
33.5
(30.6-39.2)
(31.1-41.9)
(27.4-39.6)
San Diego
(35.8-41.8)
(35.5-44.9)
(33.4-40.6)
(35.1-41.9)
(35.7-43.1)
(33.0-42.2)
(37.9-44.1)
(37.8-47.4)
(35.3-43.3)
39.1
(35.5-43.3)
(34.4-43.8)
(35.4-44.8)
(44.3-49.9)
(41.9-49.1)
(44.9-52.7)
(39.4-47.4)
(40.8-49.4)
(40.6-46.8)
(39.2-47.8)
(40.3-49.3)
(36.5-49.5)
(42.1-51.1)
San Francisco
23.4
24.2
(21.7-26.3)
(20.7-26.1)
(21.0-27.4)
29.1
28.6
(25.5-32.7)
(25.2-34.0)
(24.6-32.6)
27.5
(25.1-29.9)
(24.7-31.1)
Seattle
(32.9-41.1)
(34.0-44.6)
(37.9-43.3)
(34.9-42.5)
(43.5-48.7)
(40.5-46.7)
(45.0-52.4)
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.