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Youth Risk Behavior Surveillance — United States, 2017

Supplementary Tables 1 - 6: Introduction


TABLE 1. Number of states and large urban school districts that conducted a Youth Risk Behavior Survey and number with weighted and unweighted data, by year of survey — selected U.S. sites, Youth Risk Behavior Surveys, 1991–2017Return to your place in the text
Year Number of states Number of large urban school districts
Total Weighted Unweighted Total Weighted Unweighted
1991 26 9 17 11 7 4
1993 40 22 18 14 9 5
1995 39 22 17 17 12 5
1997 38 24 14 17 15 2
1999 41 22 19 17 14 3
2001 37 22 15 19 14 5
2003 43 32 11 22 20 2
2005 44 40 4 23 21 2
2007 44 39 5 22 22 0
2009 47 42 5 23 20 3
2011 47 43 4 22 21 1
2013 47 42 5 22 21 1
2015 47 37 10 21 19 2
2017 46 39 7 21 21 0
TABLE 2. Number of states and large urban school districts that included at least one of two questions ascertaining sexual minority status and obtained weighted data, by year of survey — selected U.S. sites, Youth Risk Behavior Surveys, 1995–2017Return to your place in the text
Unit 1995 1997 1999 2001 2003 2005 2007 2009 2011 2013 2015 2017
States 3 3 2 3 4 4 7 10 14 20 25 30
Districts 1 2 4 5 5 5 6 7 10 19 19 21
Total 4 5 6 8 9 9 13 17 24 39 44 51
TABLE 3. Sample sizes, response rates, and demographic characteristics* — United States and selected U.S. sites, Youth Risk Behavior Surveys, 2017Return to your place in the text
Site Student
Sample size		 Response rate (%) Sex (%) Grade (%) Race/Ethnicity (%)
School Student Overall Female Male 9 10 11 12 White† Black† Hispanic Other§
National survey 14,765 75 81 60 50.7 49.3 27.3 25.6 23.9 23.0 53.5 13.4 22.8 10.3
State surveys
Alaska 1,332 93 66 62 47.5 52.5 26.4 25.7 24.1 23.5 46.6 2.5 7.2 43.6
Arizona 2,139 73 83 60 49.1 50.9 26.9 25.7 24.1 23.1 41.4 5.3 43.0 10.3
Arkansas 1,682 79 69 61 49.3 50.7 26.6 25.5 24.1 23.0 63.4 20.3 11.6 4.7
California 1,778 68 90 61 49.0 51.0 26.3 26.4 24.0 23.2 25.7 5.7 51.6 17.0
Colorado 1,493 90 67 60 48.9 51.1 26.7 25.6 24.3 23.2 55.7 4.6 31.5 8.2
Connecticut 2,425 76 81 61 48.8 51.2 26.1 25.2 24.4 24.1 58.7 12.9 21.2 7.3
Delaware 2,906 89 78 70 49.3 50.7 28.2 25.9 23.5 21.9 47.8 28.8 15.3 8.2
Florida 6,171 98 68 66 49.2 50.8 25.7 25.9 24.9 23.3 40.1 31.2 22.4 6.3
Hawaii 6,031 100 77 77 50.6 49.4 28.2 25.3 23.7 22.2 15.3 0.7 10.0 74.0
Idaho 1,818 92 85 79 49.0 51.0 27.6 26.1 24.1 22.1 77.2 0.9 16.5 5.4
Illinois 5,010 92 79 73 48.9 51.1 25.9 25.4 24.5 23.9 54.3 14.5 23.0 8.2
Iowa 1,691 69 88 60 48.6 51.4 25.1 25.3 24.8 24.6 78.6 5.4 9.9 6.1
Kansas 2,413 82 81 66 48.5 51.5 26.2 25.3 24.4 23.9 66.8 6.8 17.8 8.6
Kentucky 1,997 91 84 76 48.9 51.1 27.5 26.0 23.7 22.4 80.4 10.9 4.7 4.0
Louisiana 1,273 84 75 63 49.9 50.1 29.1 25.7 23.8 21.1 47.0 43.7 5.4 3.9
Maine 9,501 83 75 62 48.1 51.9 24.8 25.1 24.8 24.9 90.4 1.3 2.7 5.5
Maryland 51,087 100 77 77 49.0 51.0 27.4 25.9 23.3 23.0 40.8 34.8 13.6 10.8
Massachusetts 3,286 75 80 60 49.5 50.5 26.2 25.3 24.5 23.9 64.4 9.1 17.4 9.1
Michigan 1,626 80 84 67 49.3 50.7 26.1 25.9 24.4 23.4 70.5 16.0 6.6 6.8
Missouri 1,864 72 83 60 49.5 50.5 25.3 25.0 24.0 23.1 73.9 15.0 5.9 5.2
Montana 4,741 94 85 80 48.3 51.7 26.6 25.1 24.8 23.2 81.4 0.5 4.0 14.1
Nebraska 1,427 85 73 63 48.8 51.2 25.2 24.8 24.6 25.3 68.4 6.6 17.9 7.2
Nevada 1,667 100 68 68 48.8 51.2 25.8 25.6 24.8 23.5 34.4 10.4 41.0 14.2
New Hampshire 12,050 86 83 71 48.1 51.9 26.6 25.3 24.4 23.5 87.7 1.7 5.5 5.0
New Mexico 5,781 90 78 70 49.4 50.6 28.8 25.9 23.1 21.7 23.6 1.4 60.5 14.5
New York 11,411 87 76 66 49.0 51.0 26.5 26.3 23.5 23.3 50.8 17.0 21.6 10.6
North Carolina 3,151 92 73 67 49.0 51.0 27.7 26.2 24.0 21.8 51.3 26.1 14.8 7.9
North Dakota 2,142 92 86 80 48.7 51.3 26.3 25.6 23.7 24.2 79.5 2.2 4.2 14.1
Oklahoma 1,649 90 81 73 48.7 51.3 27.2 26.2 24.0 22.5 51.6 9.2 14.3 25.0
Pennsylvania 3,761 83 82 68 48.8 51.2 26.4 25.5 24.3 23.7 71.9 14.2 8.5 5.4
Rhode Island 2,221 86 78 67 48.5 51.5 27.3 25.9 23.6 22.8 61.5 8.4 23.2 6.9
South Carolina 1,501 74 81 60 49.6 50.4 29.2 25.9 22.3 22.0 53.7 36.4 7.2 2.7
Tennessee 2,043 100 77 77 48.7 51.3 26.2 25.5 24.7 23.2 65.5 22.2 8.3 4.0
Texas 2,113 70 88 62 48.9 51.1 28.6 26.0 23.6 21.7 30.7 12.7 50.2 6.3
Utah 1,848 98 67 66 48.9 51.1 25.9 25.9 24.7 23.3 75.7 1.4 16.1 6.7
Vermont 20,653 99 77 76 48.5 51.5 25.3 25.3 24.6 24.5 83.2 2.5 4.5 9.7
Virginia 3,697 100 82 82 48.7 51.3 26.6 25.3 24.1 23.7 51.2 22.1 14.6 12.1
West Virginia 1,563 100 78 78 48.7 51.3 27.7 25.1 23.6 22.6 90.9 4.9 1.7 2.5
Wisconsin 2,067 88 88 77 48.7 51.3 25.4 25.1 25.1 24.3 73.9 8.6 10.2 7.3
Large urban school district surveys
Baltimore, MD 805 92 69 64 49.9 50.1 29.5 25.2 24.0 21.1 6.8 83.2 8.4 1.7
Boston, MA 1,616 100 76 76 49.3 50.7 25.9 24.0 24.1 25.7 12.0 36.0 39.8 12.3
Broward County, FL 938 97 63 61 49.9 50.1 26.1 26.3 24.8 22.7 40.5 39.3 11.6 8.6
Chicago, IL 1,883 97 75 73 51.4 48.6 25.9 25.4 24.7 23.5 11.4 33.8 48.0 6.8
Cleveland, OH 1,860 100 69 69 48.0 52.0 28.8 26.1 22.4 22.5 22.5 65.4 7.1 5.1
DeKalb County, GA 1,906 100 82 82 50.3 49.7 28.7 26.6 22.5 22.1 12.3 66.8 13.3 7.6
Detroit, MI 1,442 100 63 63 52.9 47.1 26.2 25.2 24.4 24.1 0.5 82.0 13.4 4.0
District of Columbia 8,578 92 67 61 50.3 49.7 31.3 25.7 22.7 19.9 4.5 72.3 17.5 5.7
Duval County, FL 3,493 100 79 79 51.4 48.6 27.5 27.6 23.7 20.8 40.6 43.4 9.3 6.7
Ft. Worth, TX 3,380 100 85 85 49.9 50.1 29.5 26.3 23.2 20.7 11.8 21.5 63.1 3.6
Houston, TX 3,041 100 89 89 48.4 51.6 31.2 25.3 22.7 20.3 7.3 25.3 61.9 5.6
Los Angeles, CA 1,409 100 83 83 48.8 51.2 28.9 25.9 22.3 22.5 8.8 8.6 74.1 8.6
Miami-Dade County, FL 2,863 84 68 69 49.8 50.2 24.8 25.1 24.8 23.6 7.2 20.3 70.1 2.4
New York City, NY 10,191 93 76 71 48.8 51.2 28.4 26.7 22.8 21.5 14.2 28.1 38.9 18.8
Oakland, CA 1,971 100 67 67 47.1 52.9 26.1 27.2 23.8 22.5 7.1 29.4 42.2 21.2
Orange County, FL 1,386 100 78 78 50.0 50.0 26.5 26.4 24.0 22.8 28.3 26.0 37.9 7.8
Palm Beach County, FL 2,353 100 76 76 49.0 51.0 25.6 25.8 24.6 23.6 34.4 26.9 31.8 6.8
Philadelphia, PA 1,585 100 70 70 50.0 50.0 29.7 26.0 22.9 21.3 13.1 53.5 18.3 15.1
San Diego, CA 2,452 100 85 85 48.7 51.3 28.1 26.5 23.7 21.6 23.0 8.3 43.8 24.8
San Francisco, CA 2,544 100 77 77 47.8 52.2 24.4 25.4 25.9 23.7 9.8 7.2 25.9 57.0
Shelby County, TN 1,991 96 72 69 50.6 49.4 27.1 24.9 23.7 24.1 7.1 78.6 11.7 2.6

* Weighted population estimates for the United States and each site.
† Non-Hispanic.
§ American Indian or Alaska Native, Asian, Native Hawaiian or other Pacific Islander, and multiple race (non-Hispanic).

TABLE 4. Number and percentage of students, by sexual identity — United States and selected U.S. sites, Youth Risk Behavior Surveys, 2017Return to your place in the text
Site Sexual identity
Heterosexual (straight) Gay or lesbian Bisexual Not sure
No. % CI* No. % CI No. % CI No. % CI
National survey
Total 12,012 85.4 (84.1–86.6) 357 2.4 (1.9–2.9) 1,137 8.0 (7.2–9.0) 602 4.2 (3.6–4.8)
Male 6,195 91.5 (90.4–92.5) 157 2.3 (1.6–3.3) 199 2.8 (2.3–3.5) 227 3.3 (2.8–4.1)
Female 5,741 79.6 (77.5–81.5) 190 2.3 (1.9–2.8) 914 13.1 (11.6–14.9) 366 5.0 (4.2–5.9)
State surveys
Arizona 1,764 85.2 (81.9–88.0) 73 3.6 (2.4–5.2) 172 8.1 (6.6–9.8) 71 3.2 (2.2–4.6)
Arkansas 1,291 82.4 (76.6–87.0) 95 6.4 (3.3–12.2) 121 7.8 (6.1–9.9) 59 3.4 (2.4–4.8)
California 1,523 87.2 (84.7–89.4) 46 2.6 (1.6–4.1) 127 6.8 (5.5–8.3) 63 3.4 (2.5–4.5)
Colorado 1,103 84.9 (80.8–88.3) 40 3.0 (1.9–4.6) 104 8.6 (6.0–12.2) 47 3.5 (2.7–4.7)
Connecticut 1,948 84.5 (82.1–86.6) 82 3.3 (2.5–4.3) 179 7.8 (6.2–9.7) 108 4.5 (3.7–5.5)
Delaware 2,289 86.3 (84.2–88.2) 81 3.3 (2.3–4.6) 206 7.5 (6.2–9.0) 82 2.9 (2.2–3.9)
Florida 4,978 84.3 (83.3–85.3) 173 3.0 (2.5–3.5) 460 7.4 (6.7–8.1) 327 5.4 (4.7–6.1)
Hawaii 4,848 84.2 (82.6–85.6) 224 3.6 (3.0–4.4) 393 7.6 (6.5–8.8) 304 4.6 (3.9–5.5)
Illinois 3,938 84.7 (82.7–86.5) 156 2.8 (1.9–4.1) 404 7.3 (6.4–8.4) 223 5.1 (4.1–6.3)
Iowa 1,312 87.1 (84.6–89.3) 36 1.9 (1.2–3.2) 114 6.8 (5.2–8.8) 67 4.2 (3.0–5.9)
Kentucky 1,676 84.7 (82.0–87.2) 65 3.3 (2.3–4.7) 151 8.0 (6.4–10.1) 74 3.9 (3.1–5.0)
Maine 7,887 84.7 (83.4–85.8) 279 2.9 (2.6–3.3) 834 8.5 (7.6–9.5) 404 3.9 (3.5–4.5)
Maryland 39,936 82.2 (81.6–82.8) 1,708 3.7 (3.5–4.0) 4,205 9.0 (8.6–9.5) 2,287 5.1 (4.8–5.3)
Massachusetts 2,779 86.6 (84.9–88.1) 92 2.8 (2.1–3.7) 233 6.4 (5.4–7.5) 141 4.3 (3.5–5.2)
Michigan 1,373 85.1 (82.1–87.6) 31 2.0 (1.3–3.0) 107 6.9 (5.0–9.6) 91 6.0 (4.8–7.6)
Nebraska 1,195 86.5 (83.3–89.3) 29 1.9 (1.1–3.3) 100 6.9 (5.1–9.4) 61 4.6 (3.3–6.5)
Nevada 1,353 83.0 (80.5–85.2) 51 3.1 (2.2–4.3) 165 10.3 (8.7–12.2) 58 3.6 (2.9–4.5)
New Hampshire 10,108 85.8 (84.9–86.6) 236 2.0 (1.7–2.3) 950 7.8 (7.2–8.5) 559 4.4 (4.0–4.9)
New Mexico 4,643 83.5 (81.7–85.1) 173 3.3 (2.7–4.1) 477 8.3 (7.2–9.5) 260 4.9 (4.4–5.5)
New York 8,358 79.9 (77.3–82.3) 349 3.3 (2.6–4.2) 909 8.4 (7.5–9.3) 1,432 8.4 (7.3–9.7)
North Carolina 2,584 85.1 (83.0–87.1) 92 2.9 (2.0–4.1) 254 7.9 (6.7–9.2) 119 4.1 (3.4–5.0)
North Dakota 1,816 86.8 (85.1–88.3) 59 3.0 (2.2–4.0) 137 6.4 (5.3–7.6) 87 3.8 (3.1–4.8)
Oklahoma 1,395 86.4 (82.8–89.3) 29 1.7 (1.1–2.7) 126 8.1 (5.9–11.0) 63 3.9 (2.9–5.2)
Pennsylvania 3,085 87.1 (85.3–88.7) 91 2.1 (1.5–3.0) 255 7.2 (6.1–8.5) 163 3.6 (2.8–4.6)
Rhode Island 1,828 83.9 (81.0–86.4) 62 2.5 (1.4–4.3) 194 8.6 (7.0–10.6) 105 5.0 (3.6–6.9)
South Carolina 1,096 83.6 (80.4–86.3) 53 4.2 (2.7–6.4) 123 8.8 (7.4–10.4) 53 3.5 (2.2–5.4)
Texas 1,754 85.7 (83.6–87.6) 57 2.8 (1.9–4.1) 174 7.9 (6.6–9.4) 82 3.6 (2.8–4.5)
Vermont 17,490 85.4 (84.9–85.8) 462 2.3 (2.1–2.5) 1,605 7.8 (7.4–8.2) 944 4.6 (4.3–4.9)
West Virginia 1,330 88.0 (84.7–90.7) 39 2.7 (1.6–4.7) 114 6.7 (5.2–8.5) 46 2.6 (1.8–3.6)
Wisconsin 1,736 85.9 (83.4–88.2) 48 2.3 (1.6–3.2) 150 7.5 (6.0–9.4) 84 4.2 (3.6–5.1)
Median 85.1 2.9 7.8 4.2
Range 79.9–88.0 1.7–6.4 6.4–10.3 2.6–8.4
Large urban school district surveys
Baltimore, MD 483 76.6 (71.5–81.0) 36 5.1 (3.6–7.2) 81 11.9 (8.8–15.9) 44 6.4 (4.5–9.0)
Boston, MA 1,344 84.9 (83.0–86.7) 42 2.8 (2.1–3.9) 119 7.5 (6.4–8.8) 76 4.8 (3.6–6.2)
Broward County, FL 748 82.2 (78.6–85.3) 37 4.4 (2.6–7.6) 70 7.8 (5.7–10.5) 52 5.6 (4.0–7.6)
Chicago, IL 1,416 81.6 (79.0–83.9) 73 4.1 (2.8–5.9) 178 9.3 (7.3–11.7) 85 5.1 (4.0–6.4)
Cleveland, OH 1,510 82.1 (79.5–84.4) 56 3.2 (2.3–4.5) 183 10.1 (8.3–12.2) 78 4.6 (3.5–5.9)
DeKalb County, GA 1,541 82.7 (80.6–84.6) 67 4.3 (3.3–5.5) 151 7.1 (5.8–8.7) 106 5.9 (4.6–7.5)
Detroit, MI 1,141 82.5 (80.0–84.9) 44 3.3 (2.3–4.7) 139 10.2 (8.2–12.7) 57 4.0 (2.9–5.3)
District of Columbia 6,778 81.6 (80.7–82.5) 394 4.8 (4.3–5.3) 868 9.8 (9.1–10.5) 374 3.8 (3.4–4.3)
Duval County, FL 2,569 78.5 (76.7–80.1) 186 5.5 (4.6–6.5) 357 10.9 (9.7–12.3) 184 5.1 (4.3–6.0)
Ft. Worth, TX 2,787 86.5 (85.1–87.7) 81 2.6 (2.1–3.3) 255 7.3 (6.5–8.3) 128 3.6 (3.0–4.3)
Houston, TX 2,386 82.4 (80.6–84.0) 107 3.6 (2.9–4.6) 261 8.4 (7.4–9.5) 178 5.6 (4.8–6.5)
Los Angeles, CA 1,223 88.4 (85.6–90.7) 24 1.7 (1.0–3.1) 78 5.5 (3.8–7.8) 62 4.4 (3.2–6.1)
Miami-Dade County, FL 2,333 85.2 (83.3–86.9) 100 3.5 (2.8–4.5) 224 8.0 (6.9–9.3) 95 3.3 (2.6–4.1)
New York City, NY 7,340 74.7 (73.1–76.2) 309 3.0 (2.6–3.6) 792 7.4 (6.7–8.2) 1,419 14.9 (13.9–16.0)
Oakland, CA 1,663 86.2 (84.3–87.9) 31 1.8 (1.1–2.8) 163 7.9 (6.7–9.1) 88 4.2 (3.4–5.2)
Orange County, FL 1,094 83.4 (80.7–85.8) 54 4.2 (3.1–5.8) 110 7.9 (6.3–9.9) 63 4.4 (3.4–5.8)
Palm Beach County, FL 1,858 83.8 (81.6–85.7) 90 4.0 (3.2–4.9) 155 7.1 (5.8–8.5) 120 5.1 (4.1–6.4)
Philadelphia, PA 1,237 84.7 (81.6–87.4) 56 3.3 (2.6–4.3) 135 8.5 (6.6–10.9) 62 3.5 (2.5–4.8)
San Diego, CA 2,082 85.9 (83.9–87.6) 52 2.3 (1.7–3.1) 176 7.1 (5.9–8.6) 110 4.7 (3.8–5.8)
San Francisco, CA 2,140 85.8 (84.0–87.4) 44 1.8 (1.3–2.5) 153 6.0 (4.8–7.4) 153 6.4 (5.4–7.7)
Shelby County, TN 1,476 82.8 (80.1–85.2) 105 5.0 (3.9–6.3) 157 7.7 (6.4–9.3) 95 4.5 (3.2–6.3)
Median 82.8 3.5 7.9 4.7
Range 74.7–88.4 1.7–5.5 5.5–11.9 3.3–14.9

* 95% confidence interval.

TABLE 5. Number and percentage of students, by sex of sexual contacts — United States and selected U.S. sites, Youth Risk Behavior Surveys, 2017Return to your place in the text
Site Sex of sexual contacts
Opposite sex only Same sex only Both sexes No sexual contact
No. % CI* No. % CI No. % CI No. % CI
National survey
Total 5,124 45.3 (43.1–47.4) 221 1.6 (1.3–2.0) 598 5.3 (4.8–5.9) 5,370 47.8 (45.7–49.9)
Male 2,782 50.0 (47.3–52.7) 79 1.4 (1.0–1.8) 113 2.3 (1.8–3.0) 2,490 46.4 (43.8–49.0)
Female 2,342 40.6 (38.2–43.0) 142 1.8 (1.5–2.3) 485 8.4 (7.3–9.6) 2,880 49.2 (46.9–51.6)
State surveys
Arizona —† — — — — — — — — — — —
Arkansas 609 46.9 (42.3–51.5) 85 6.9 (3.3–14.1) 79 6.2 (4.7–8.1) 615 40.0 (33.8–46.5)
California 660 42.0 (37.8–46.4) 58 3.4 (2.3–5.0) 64 4.0 (2.7–5.8) 851 50.6 (46.2–55.0)
Colorado — — — — — — — — — — — —
Connecticut 915 42.6 (39.8–45.3) 71 3.3 (2.5–4.3) 120 5.9 (4.6–7.3) 1,066 48.3 (45.2–51.5)
Delaware 1,305 51.4 (48.3–54.4) 72 2.7 (2.0–3.7) 136 4.7 (3.8–5.9) 1,152 41.2 (37.7–44.7)
Florida 2,349 42.8 (40.9–44.6) 155 2.7 (2.2–3.3) 313 5.6 (5.0–6.2) 2,854 49.0 (47.2–50.8)
Hawaii 1,979 33.6 (31.6–35.7) 214 3.6 (2.9–4.4) 230 4.0 (3.3–4.8) 2,912 58.9 (56.0–61.7)
Illinois 1,968 45.1 (42.1–48.0) 149 2.8 (2.2–3.7) 236 5.5 (4.7–6.5) 1,988 46.6 (43.3–49.9)
Iowa 674 49.2 (45.6–52.8) 38 2.3 (1.5–3.5) 71 4.1 (3.1–5.2) 665 44.4 (40.2–48.7)
Kentucky 835 45.3 (41.5–49.2) 44 2.4 (1.8–3.2) 90 5.2 (3.9–6.8) 845 47.1 (42.9–51.3)
Maine 3,799 46.3 (44.4–48.2) 338 4.0 (3.5–4.6) 437 4.8 (4.0–5.6) 4,025 45.0 (42.8–47.2)
Maryland — — — — — — — — — — — —
Massachusetts 1,275 42.5 (39.4–45.7) 109 3.1 (2.4–3.9) 156 5.3 (4.3–6.4) 1,490 49.1 (45.6–52.7)
Michigan 665 46.5 (42.5–50.7) 36 2.7 (1.7–4.2) 73 5.2 (3.6–7.5) 743 45.5 (40.8–50.3)
Nebraska 504 38.0 (34.5–41.6) 40 2.5 (1.7–3.6) 38 3.1 (2.0–4.8) 742 56.4 (52.4–60.3)
Nevada 608 40.5 (36.2–44.9) 49 3.2 (2.4–4.2) 88 6.2 (5.0–7.7) 801 50.2 (45.3–55.1)
New Hampshire 5,559 48.7 (47.0–50.3) 173 1.5 (1.2–1.7) 511 4.1 (3.7–4.6) 5,185 45.8 (44.0–47.5)
New Mexico 2,304 43.2 (40.1–46.3) 167 3.3 (2.8–3.9) 263 5.1 (3.9–6.6) 2,589 48.4 (44.4–52.5)
New York 3,273 37.1 (34.0–40.4) 338 3.1 (2.3–4.2) 460 4.8 (4.1–5.6) 5,302 54.9 (51.4–58.4)
North Carolina 1,326 46.5 (42.7–50.4) 84 3.3 (2.5–4.3) 170 5.5 (4.4–7.0) 1,320 44.6 (40.0–49.3)
North Dakota — — — — — — — — — — — —
Oklahoma 740 51.3 (46.8–55.8) 29 1.9 (1.1–3.4) 76 5.3 (3.9–7.1) 696 41.5 (37.7–45.3)
Pennsylvania 1,505 46.5 (44.0–48.9) 84 2.3 (1.6–3.2) 163 4.4 (3.6–5.4) 1,663 46.9 (44.3–49.5)
Rhode Island 845 44.1 (39.8–48.5) 68 3.1 (2.0–4.7) 97 4.8 (3.8–6.1) 993 47.9 (42.1–53.9)
South Carolina 565 46.1 (41.9–50.5) 49 4.6 (2.8–7.4) 75 5.8 (4.5–7.5) 523 43.5 (39.1–48.0)
Texas 820 44.4 (40.0–48.9) 49 2.5 (1.7–3.8) 91 4.8 (3.6–6.5) 966 48.3 (43.1–53.5)
Vermont 9,859 50.9 (50.2–51.6) 336 1.7 (1.6–1.9) 941 4.8 (4.5–5.1) 8,596 42.5 (41.8–43.2)
West Virginia 709 50.8 (45.6–56.0) 35 2.4 (1.5–3.8) 86 5.2 (3.8–7.2) 603 41.6 (37.0–46.4)
Wisconsin 892 45.3 (42.1–48.5) 48 2.5 (1.9–3.2) 77 3.6 (3.0–4.3) 924 48.6 (45.5–51.7)
Median 45.3 2.8 5.0 47.0
Range 33.6–51.4 1.5–6.9 3.1–6.2 40.0–58.9
Large urban school district surveys
Baltimore, MD 264 45.5 (40.2–50.9) 41 6.4 (4.6–8.8) 55 8.8 (6.1–12.6) 223 39.3 (33.1–45.9)
Boston, MA 658 47.5 (43.5–51.4) 61 4.2 (3.2–5.7) 57 4.3 (3.3–5.6) 656 44.0 (40.1–48.0)
Broward County, FL 353 44.6 (38.7–50.6) 29 3.8 (2.1–6.6) 57 7.4 (5.2–10.4) 397 44.2 (38.4–50.2)
Chicago, IL 718 44.9 (41.1–48.8) 63 3.6 (2.8–4.7) 89 5.7 (4.3–7.4) 717 45.8 (41.6–50.0)
Cleveland, OH 726 48.8 (45.4–52.2) 96 6.1 (4.7–8.0) 131 8.7 (6.8–11.1) 587 36.3 (32.6–40.2)
DeKalb County, GA 726 44.9 (41.7–48.1) 71 4.6 (3.5–5.9) 105 5.7 (4.6–7.0) 838 44.9 (41.5–48.3)
Detroit, MI 482 43.4 (39.1–47.7) 75 6.6 (5.1–8.6) 84 7.0 (5.4–8.9) 593 43.1 (38.6–47.6)
District of Columbia 3,050 45.8 (44.5–47.0) 414 6.2 (5.5–6.8) 501 7.1 (6.5–7.8) 3,050 41.0 (39.8–42.2)
Duval County, FL 1,294 45.1 (42.4–47.8) 181 5.9 (5.0–6.9) 284 9.8 (8.6–11.0) 1,149 39.3 (36.5–42.1)
Ft. Worth, TX 1,234 42.4 (40.4–44.4) 86 3.0 (2.4–3.8) 117 3.8 (3.1–4.7) 1,546 50.8 (48.7–53.0)
Houston, TX 1,022 39.3 (36.9–41.8) 95 3.5 (2.7–4.5) 155 5.5 (4.7–6.5) 1,394 51.6 (49.0–54.3)
Los Angeles, CA 511 41.1 (35.4–47.0) 34 2.7 (1.8–4.0) 43 3.6 (2.5–5.1) 722 52.6 (46.8–58.3)
Miami-Dade County, FL 1,216 47.0 (43.9–50.2) 106 4.2 (3.2–5.4) 156 5.6 (4.8–6.5) 1,074 43.2 (39.6–46.8)
New York City, NY 2,695 33.1 (30.4–35.9) 289 3.3 (2.8–3.9) 384 4.6 (3.9–5.5) 4,588 58.9 (55.7–62.0)
Oakland, CA 662 39.1 (35.8–42.6) 55 3.9 (2.9–5.2) 81 4.2 (3.2–5.5) 884 52.7 (48.7–56.7)
Orange County, FL 465 40.1 (36.1–44.2) 56 4.7 (3.5–6.2) 65 5.1 (4.0–6.6) 631 50.1 (45.6–54.5)
Palm Beach County, FL 840 42.9 (39.3–46.5) 77 4.0 (3.0–5.2) 100 4.9 (3.9–6.1) 1,019 48.3 (44.9–51.7)
Philadelphia, PA 646 44.6 (38.7–50.6) 52 3.6 (2.4–5.3) 79 5.8 (4.3–7.7) 634 46.1 (39.1–53.2)
San Diego, CA 954 42.8 (39.5–46.2) 83 3.9 (2.9–5.1) 84 3.9 (3.1–5.0) 1,172 49.4 (46.2–52.5)
San Francisco, CA 683 28.6 (25.8–31.5) 84 3.8 (3.1–4.6) 75 3.3 (2.4–4.6) 1,418 64.3 (61.0–67.5)
Shelby County, TN 803 50.5 (47.4–53.6) 104 5.5 (4.2–7.1) 93 4.9 (3.8–6.2) 624 39.1 (36.0–42.3)
Median 44.6 4.0 5.5 45.8
Range 28.6–50.5 2.7–6.6 3.3–9.8 36.3–64.3

* 95% confidence interval.
† Not available.

TABLE 6. Sex of sexual contacts, by sexual identity — United States and selected U.S. sites,* Youth Risk Behavior Surveys, 2017Return to your place in the text
Site Sex of sexual contacts Sexual identity
Heterosexual (straight) Gay, lesbian, or bisexual Not sure
% CI† % CI % CI
National survey Opposite sex only 94.1 (92.9–95.1) 4.0 (3.1–5.2) 1.9 (1.4–2.5)
Same sex only or both sexes 20.1 (16.2–24.8) 68.4 (64.0–72.6) 11.4 (8.7–15.0)
No sexual contact 87.6 (85.9–89.1) 7.7 (6.5–9.1) 4.7 (3.9–5.6)
State surveys
Arkansas Opposite sex only 90.0 (80.5–95.2) 7.9 (3.1–18.6) 2.1 (0.9–4.7)
Same sex only or both sexes 43.0 (27.0–60.6) 52.8 (37.5–67.7) 4.1 (1.5–10.8)
No sexual contact 91.7 (88.8–93.9) 5.0 (3.2–7.7) 3.3 (2.3–4.6)
California Opposite sex only 95.2 (92.7–96.9) 3.7 (2.2–6.2) 1.1 (0.4–2.6)
Same sex only or both sexes 38.9 (33.0–45.2) 56.0 (50.1–61.6) 5.1 (2.2–11.5)
No sexual contact 87.6 (84.5–90.1) 8.0 (5.9–10.7) 4.5 (3.1–6.3)
Connecticut Opposite sex only 93.4 (91.0–95.2) 4.3 (3.0–6.1) 2.3 (1.4–3.6)
Same sex only or both sexes 33.9 (28.0–40.3) 53.0 (44.6–61.2) 13.2 (7.5–22.0)
No sexual contact 86.9 (83.6–89.6) 8.5 (6.0–11.9) 4.6 (3.9–5.6)
Delaware Opposite sex only 93.6 (90.1–95.9) 4.8 (3.1–7.5) 1.6 (0.9–2.7)
Same sex only or both sexes 23.9 (17.9–31.1) 71.1 (63.6–77.7) 5.0 (2.4–10.2)
No sexual contact 89.3 (86.9–91.3) 6.8 (5.3–8.6) 3.9 (2.7–5.7)
Florida Opposite sex only 93.3 (92.1–94.4) 4.0 (3.3–4.9) 2.6 (2.0–3.5)
Same sex only or both sexes 20.7 (16.6–25.6) 64.0 (58.4–69.1) 15.3 (12.1–19.2)
No sexual contact 88.1 (86.9–89.2) 6.9 (6.1–7.9) 5.0 (4.1–6.0)
Hawaii Opposite sex only 93.2 (91.8–94.4) 5.1 (4.0–6.7) 1.7 (1.0–2.6)
Same sex only or both sexes 32.9 (26.6–39.8) 58.0 (50.8–64.8) 9.1 (5.4–15.1)
No sexual contact 87.9 (86.1–89.5) 7.0 (5.7–8.5) 5.2 (4.1–6.5)
Illinois Opposite sex only 94.6 (92.9–95.9) 3.8 (2.7–5.3) 1.6 (0.9–2.8)
Same sex only or both sexes 23.9 (18.8–29.9) 61.1 (54.3–67.5) 14.9 (10.2–21.4)
No sexual contact 87.7 (85.6–89.5) 6.5 (5.2–8.2) 5.8 (4.3–7.8)
Iowa Opposite sex only 92.0 (89.2–94.1) 5.5 (3.7–7.9) 2.6 (1.5–4.5)
Same sex only or both sexes 37.6 (26.9–49.6) 56.0 (45.2–66.3) 6.5 (3.1–13.0)
No sexual contact 90.8 (86.4–93.8) 5.7 (3.8–8.4) 3.6 (2.0–6.2)
Kentucky Opposite sex only 94.0 (92.4–95.2) 4.2 (3.0–5.7) 1.9 (1.0–3.5)
Same sex only or both sexes 18.7 (11.9–28.2) 70.3 (62.6–76.9) 11.0 (5.3–21.3)
No sexual contact 88.0 (84.2–90.9) 7.6 (5.4–10.6) 4.5 (3.0–6.5)
Maine Opposite sex only 92.8 (91.7–93.8) 5.3 (4.5–6.3) 1.8 (1.4–2.4)
Same sex only or both sexes 37.5 (33.2–41.9) 56.3 (51.4–61.0) 6.3 (4.8–8.1)
No sexual contact 86.4 (85.0–87.6) 8.7 (7.9–9.7) 4.9 (4.1–5.8)
Massachusetts Opposite sex only 93.7 (91.7–95.2) 4.5 (3.1–6.3) 1.9 (1.2–2.8)
Same sex only or both sexes 42.8 (36.3–49.5) 48.8 (42.4–55.2) 8.4 (5.4–12.9)
No sexual contact 88.3 (86.3–90.0) 6.7 (5.2–8.6) 5.0 (3.8–6.6)
Michigan Opposite sex only 93.5 (90.8–95.5) 3.7 (2.4–5.7) 2.8 (1.6–4.9)
Same sex only or both sexes 32.1 (24.5–40.6) 49.3 (37.5–61.1) 18.7 (11.5–28.8)
No sexual contact 87.8 (84.6–90.4) 6.0 (4.1–8.8) 6.2 (4.5–8.5)
Nebraska Opposite sex only 91.8 (88.3–94.3) 4.9 (2.9–8.2) 3.4 (1.8–6.1)
Same sex only or both sexes 42.4 (28.9–57.2) 53.4 (38.8–67.5) 4.2 (1.4–12.0)
No sexual contact 89.8 (86.8–92.2) 5.7 (3.9–8.3) 4.5 (3.0–6.6)
Nevada Opposite sex only 92.4 (89.6–94.5) 5.2 (3.6–7.5) 2.4 (1.3–4.3)
Same sex only or both sexes 28.7 (19.4–40.1) 64.0 (53.0–73.7) 7.4 (3.8–13.7)
No sexual contact 86.0 (81.7–89.4) 10.1 (7.1–14.2) 3.9 (2.8–5.6)
New Hampshire Opposite sex only 92.7 (91.8–93.6) 5.0 (4.4–5.8) 2.3 (1.8–2.8)
Same sex only or both sexes 20.6 (17.0–24.7) 67.3 (62.8–71.6) 12.1 (9.6–15.2)
No sexual contact 86.8 (85.7–87.9) 7.9 (7.0–8.9) 5.2 (4.6–6.0)
New Mexico Opposite sex only 91.9 (90.5–93.1) 5.3 (4.2–6.8) 2.8 (2.0–3.8)
Same sex only or both sexes 23.6 (19.4–28.5) 62.2 (57.8–66.5) 14.1 (10.9–18.1)
No sexual contact 87.1 (85.5–88.5) 8.4 (7.1–10.0) 4.5 (3.8–5.3)
New York Opposite sex only 88.1 (85.4–90.3) 6.7 (5.3–8.5) 5.2 (4.1–6.6)
Same sex only or both sexes 30.0 (23.9–37.0) 57.1 (50.3–63.6) 12.9 (8.7–18.7)
No sexual contact 84.2 (81.4–86.6) 7.8 (6.5–9.3) 8.0 (6.6–9.7)
North Carolina Opposite sex only 92.9 (91.2–94.3) 4.7 (3.6–6.2) 2.3 (1.5–3.7)
Same sex only or both sexes 30.1 (23.7–37.3) 58.8 (51.0–66.3) 11.1 (7.2–16.8)
No sexual contact 90.0 (87.9–91.8) 6.5 (5.2–8.2) 3.5 (2.8–4.3)
Oklahoma Opposite sex only 92.5 (89.2–94.9) 4.5 (2.7–7.5) 3.0 (1.6–5.5)
Same sex only or both sexes 24.6 (16.0–35.9) 68.9 (56.9–78.7) 6.6 (2.4–16.8)
No sexual contact 90.8 (87.2–93.5) 5.0 (3.3–7.5) 4.2 (2.7–6.4)
Pennsylvania Opposite sex only 95.7 (94.5–96.7) 3.2 (2.4–4.1) 1.1 (0.6–2.0)
Same sex only or both sexes 26.4 (19.5–34.7) 63.6 (55.4–71.1) 10.0 (6.9–14.3)
No sexual contact 88.6 (86.0–90.8) 6.7 (5.1–8.6) 4.8 (3.5–6.5)
Rhode Island Opposite sex only 91.7 (89.8–93.2) 5.6 (3.8–8.4) 2.7 (1.5–4.8)
Same sex only or both sexes 41.4 (30.0–53.8) 49.1 (35.3–63.0) 9.5 (4.5–19.0)
No sexual contact 86.0 (80.0–90.4) 9.0 (5.8–13.9) 5.0 (3.5–7.0)
South Carolina Opposite sex only 93.1 (89.8–95.4) 5.5 (3.6–8.3) 1.4 (0.6–3.2)
Same sex only or both sexes 24.0 (16.6–33.3) 66.4 (58.3–73.7) 9.5 (5.7–15.4)
No sexual contact 89.3 (85.6–92.1) 7.7 (5.4–11.0) 3.0 (1.6–5.3)
Texas Opposite sex only 94.4 (91.4–96.3) 4.0 (2.5–6.3) 1.6 (1.0–2.8)
Same sex only or both sexes 23.8 (16.6–32.9) 68.9 (59.0–77.3) 7.3 (3.8–13.7)
No sexual contact 88.4 (85.6–90.7) 7.5 (5.8–9.5) 4.1 (2.9–5.8)
Vermont Opposite sex only 93.3 (92.8–93.8) 4.5 (4.1–4.9) 2.2 (2.0–2.6)
Same sex only or both sexes 26.4 (24.0–28.9) 64.8 (62.1–67.4) 8.8 (7.4–10.5)
No sexual contact 86.1 (85.4–86.9) 8.2 (7.6–8.8) 5.7 (5.2–6.2)
West Virginia Opposite sex only 96.2 (93.9–97.7) 2.9 (1.6–5.0) 0.9 (0.5–1.9)
Same sex only or both sexes 28.0 (20.0–37.7) 64.7 (57.6–71.2) 7.4 (3.3–15.5)
No sexual contact 90.4 (87.0–93.0) 6.5 (4.4–9.6) 3.1 (1.9–5.0)
Wisconsin Opposite sex only 94.1 (91.6–95.9) 3.8 (2.3–6.4) 2.1 (1.2–3.6)
Same sex only or both sexes 34.5 (24.4–46.3) 59.2 (46.7–70.6) 6.3 (2.6–14.6)
No sexual contact 86.5 (82.9–89.4) 8.9 (6.9–11.4) 4.6 (3.3–6.5)
Median Opposite sex only 93.3 4.6 2.2
Range Opposite sex only 88.1–96.2 2.9–7.9 0.9–5.2
Median Same sex only or both sexes 29.4 60.2 9.0
Range Same sex only or both sexes 18.7–43.0 48.8–71.1 4.1–18.7
Median No sexual contact 88.0 7.3 4.6
Range No sexual contact 84.2–91.7 5.0–10.1 3.0–8.0
Large urban school district surveys
Baltimore, MD Opposite sex only 91.6 (87.3–94.5) 5.4 (3.3–8.7) 3.1 (1.4–6.4)
Same sex only or both sexes 23.2 (16.0–32.3) 65.0 (53.2–75.2) 11.9 (5.6–23.4)
No sexual contact 78.3 (68.6–85.6) 13.6 (9.2–19.5) 8.1 (4.4–14.7)
Boston, MA Opposite sex only 92.3 (89.3–94.6) 4.5 (3.1–6.4) 3.2 (1.8–5.7)
Same sex only or both sexes 39.2 (30.7–48.4) 50.0 (39.8–60.1) 10.8 (6.2–18.4)
No sexual contact 86.1 (82.5–89.0) 8.4 (6.4–10.9) 5.6 (3.6–8.5)
Broward County, FL Opposite sex only 93.4 (89.9–95.8) 3.1 (1.5–6.4) 3.4 (1.6–7.0)
Same sex only or both sexes 31.8 (19.1–47.9) 61.1 (45.3–74.9) 7.1 (3.2–15.4)
No sexual contact 82.5 (75.7–87.8) 10.0 (6.7–14.7) 7.4 (4.5–11.9)
Chicago, IL Opposite sex only 91.8 (88.8–94.0) 6.1 (4.2–8.8) 2.2 (1.3–3.5)
Same sex only or both sexes 29.2 (21.8–37.9) 58.7 (51.1–65.9) 12.1 (7.2–19.6)
No sexual contact 84.5 (81.5–87.1) 10.1 (7.4–13.7) 5.4 (4.2–6.8)
Cleveland, OH Opposite sex only 92.7 (89.7–94.8) 5.0 (3.2–7.8) 2.3 (1.2–4.2)
Same sex only or both sexes 42.5 (34.7–50.6) 50.8 (42.0–59.5) 6.8 (4.0–11.4)
No sexual contact 84.4 (80.0–88.0) 9.1 (6.6–12.5) 6.5 (4.2–9.9)
DeKalb County, GA Opposite sex only 91.4 (88.7–93.4) 5.7 (4.2–7.7) 2.9 (1.8–4.7)
Same sex only or both sexes 20.8 (13.8–30.2) 62.4 (53.2–70.7) 16.8 (11.6–23.7)
No sexual contact 89.1 (86.2–91.5) 5.8 (4.2–8.0) 5.1 (3.6–7.0)
Detroit, MI Opposite sex only 91.9 (87.9–94.7) 6.2 (3.9–9.7) 1.9 (1.0–3.7)
Same sex only or both sexes 32.6 (24.3–42.2) 58.1 (48.2–67.4) 9.3 (5.2–15.9)
No sexual contact 89.6 (86.4–92.1) 7.4 (5.1–10.7) 3.0 (2.0–4.5)
District of Columbia Opposite sex only 92.1 (91.0–93.0) 5.9 (5.0–6.8) 2.1 (1.6–2.7)
Same sex only or both sexes 39.5 (35.9–43.1) 54.9 (51.3–58.5) 5.6 (4.3–7.3)
No sexual contact 84.3 (82.9–85.7) 10.8 (9.7–12.1) 4.8 (4.1–5.6)
Duval County, FL Opposite sex only 90.8 (88.7–92.5) 6.7 (5.3–8.4) 2.5 (1.7–3.9)
Same sex only or both sexes 25.4 (21.3–30.0) 63.8 (58.6–68.7) 10.8 (8.1–14.3)
No sexual contact 86.5 (83.9–88.7) 8.3 (6.6–10.4) 5.2 (3.8–7.0)
Ft. Worth, TX Opposite sex only 93.1 (91.4–94.5) 4.3 (3.2–5.8) 2.6 (1.8–3.6)
Same sex only or both sexes 27.3 (21.2–34.3) 66.9 (59.2–73.7) 5.8 (3.4–9.9)
No sexual contact 90.2 (88.5–91.6) 6.3 (5.2–7.6) 3.5 (2.6–4.8)
Houston, TX Opposite sex only 90.0 (87.7–92.0) 6.4 (5.0–8.2) 3.5 (2.4–5.1)
Same sex only or both sexes 26.2 (19.7–34.0) 59.1 (51.9–65.8) 14.7 (9.8–21.6)
No sexual contact 88.1 (86.1–89.8) 7.0 (5.7–8.6) 4.9 (3.8–6.2)
Los Angeles, CA Opposite sex only 94.3 (90.7–96.6) 4.1 (2.4–7.1) 1.6 (0.5–4.5)
Same sex only or both sexes 41.1 (28.0–55.5) 49.8 (35.9–63.7) 9.1 (5.7–14.2)
No sexual contact 89.8 (86.7–92.2) 5.2 (3.1–8.6) 5.0 (3.5–7.0)
Miami-Dade County, FL Opposite sex only 92.9 (90.7–94.7) 5.7 (4.3–7.7) 1.3 (0.8–2.3)
Same sex only or both sexes 30.6 (23.5–38.7) 59.8 (52.1–67.0) 9.7 (6.2–14.7)
No sexual contact 90.1 (87.4–92.2) 6.8 (4.9–9.3) 3.2 (2.3–4.3)
New York City, NY Opposite sex only 83.5 (81.5–85.3) 6.5 (5.4–7.8) 10.0 (8.5–11.8)
Same sex only or both sexes 27.9 (24.9–31.2) 51.9 (47.7–56.0) 20.2 (16.3–24.8)
No sexual contact 78.4 (76.8–79.9) 7.0 (6.1–8.1) 14.6 (13.4–15.9)
Oakland, CA Opposite sex only 92.1 (89.6–94.0) 5.4 (3.9–7.4) 2.5 (1.6–4.1)
Same sex only or both sexes 47.4 (37.4–57.5) 43.2 (33.3–53.6) 9.4 (4.8–17.8)
No sexual contact 89.4 (87.1–91.4) 6.9 (5.2–9.0) 3.7 (2.6–5.2)
Orange County, FL Opposite sex only 94.3 (91.5–96.2) 4.1 (2.5–6.5) 1.7 (0.7–3.7)
Same sex only or both sexes 30.7 (22.7–40.1) 60.3 (50.9–68.9) 9.0 (4.7–16.6)
No sexual contact 87.8 (84.9–90.3) 7.4 (5.4–10.0) 4.8 (3.2–7.1)
Palm Beach County, FL Opposite sex only 92.4 (89.6–94.6) 4.6 (3.3–6.4) 3.0 (1.7–5.2)
Same sex only or both sexes 24.8 (18.0–33.0) 60.5 (52.8–67.8) 14.7 (9.9–21.2)
No sexual contact 88.6 (86.5–90.4) 6.6 (5.3–8.3) 4.7 (3.5–6.5)
Philadelphia, PA Opposite sex only 94.2 (91.9–95.8) 4.4 (2.9–6.7) 1.4 (0.8–2.5)
Same sex only or both sexes 26.7 (18.9–36.3) 62.2 (50.8–72.3) 11.1 (5.0–22.8)
No sexual contact 88.0 (84.4–90.9) 8.7 (6.0–12.5) 3.3 (2.2–4.9)
San Diego, CA Opposite sex only 92.9 (90.6–94.7) 5.2 (3.6–7.4) 2.0 (1.2–3.2)
Same sex only or both sexes 44.5 (35.2–54.2) 51.8 (42.0–61.4) 3.7 (1.3–9.8)
No sexual contact 87.8 (85.3–90.0) 6.6 (5.0–8.5) 5.6 (4.2–7.5)
San Francisco, CA Opposite sex only 93.4 (91.1–95.1) 4.1 (2.7–6.3) 2.5 (1.4–4.3)
Same sex only or both sexes 43.3 (34.2–53.0) 46.4 (37.7–55.3) 10.3 (5.9–17.3)
No sexual contact 87.5 (85.4–89.3) 5.6 (4.2–7.3) 6.9 (5.5–8.7)
Shelby County, TN Opposite sex only 93.8 (91.9–95.3) 4.3 (3.1–6.0) 1.8 (1.0–3.3)
Same sex only or both sexes 25.6 (17.1–36.5) 62.3 (53.0–70.8) 12.1 (7.4–19.0)
No sexual contact 87.2 (83.5–90.2) 8.7 (6.7–11.4) 4.0 (2.4–6.7)
Median Opposite sex only 92.4 5.2 2.5
Range Opposite sex only 83.5–94.3 3.1–6.7 1.3–10.0
Median Same sex only or both sexes 30.6 59.1 10.3
Range Same sex only or both sexes 20.8–47.4 43.2–66.9 3.7–20.2
Median No sexual contact 87.8 7.4 5.0
Range No sexual contact 78.3–90.2 5.2–13.6 3.0–14.6

* Among the 26 states and 21 large urban school districts that ascertained both sexual identity and sex of sexual contacts.
† 95% confidence interval.

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