Trends in the Prevalence of Sexual Behaviors and HIV Testing National YRBS: 1991—2017

The national Youth Risk Behavior Survey (YRBS) monitors health behaviors that contribute to the leading causes of death, disability, and social problems among youth and adults in the United States. The national YRBS is conducted every two years during the spring semester and provides data representative of 9th through 12th grade students in public and private schools throughout the United States.

Trends in the Prevalence of Alcohol Use National YRBS: 1991—2017
Percentages Trend from 1991–20171 Change from 2015–20172
1991 1993 1995 1997 1999 2001 2003 2005 2007 2009 2011 2013 2015 2017
Ever had sexual intercourse
54.1 53.0 53.1 48.4 49.9 45.6 46.7 46.8 47.8 46.0 47.4 46.8 41.2 39.5 Decreased 1991—2017 No change
Had sexual intercourse before age 13 years
10.2 9.2 8.9 7.2 8.3 6.6 7.4 6.2 7.1 5.9 6.2 5.6 3.9 3.4 Decreased 1991—2017 No change
Had sexual intercourse with four or more persons
(during their life)
18.7 18.7 17.8 16.0 16.2 14.2 14.4 14.3 14.9 13.8 15.3 15.0 11.5 9.7 Decreased 1991—2017 No change
Currently sexually active
(had sexual intercourse with at least one person during the 3 months before the survey)
37.5 37.5 37.9 34.8 36.3 33.4 34.3 33.9 35.0 34.2 33.7 34.0 30.1 28.7 Decreased 1991—2017
Decreased 1991—2013
Decreased 2013—2017
No change
Used a condom
(during last sexual intercourse, among students who were currently sexually active)
46.2 52.8 54.4 56.8 58.0 57.9 63.0 62.8 61.5 61.1 60.2 59.1 56.9 53.8 Increased 1991—2017
Increased 1991—2005
Decreased 2005—2017
No change
Used an IUD or implant
(before last sexual intercourse to prevent pregnancy, among students who were currently sexually active)
3 1.6 3.3 4.1 Increased 2013—2017 No change
Used birth control pills
(before last sexual intercourse to prevent pregnancy, among students who were currently sexually active)
20.8 18.4 17.4 16.6 16.2 18.2 17.0 17.6 16.0 19.8 18.0 19.0 18.2 20.7 Increased 1991—2017
Decreased 1991—1995
Increased 1995—2017
No change
Did not use any method to prevent pregnancy
(during last sexual intercourse, among students who were currently sexually active)
16.5 15.3 15.8 15.2 14.9 13.3 11.3 12.7 12.2 11.9 12.9 13.7 13.8 13.8 Decreased 1991—2017
Decreased 1991—2007
No change 2007—2017
No change
Drank alcohol or used drugs
(before last sexual intercourse, among students who were currently sexually active)
21.6 21.3 24.8 24.7 24.8 25.6 25.4 23.3 22.5 21.6 22.1 22.4 20.6 18.8 Decreased 1991—2017
Increased 1991—1999
Decreased 1999—2017
No change
Ever been tested for HIV
(not counting tests done if they donated blood)
3 11.9 12.9 12.7 12.9 12.9 10.2 9.3 Decreased 2005—2017
No change 2005—2013
Decreased 2013—2017
No change
  1. Based on linear and quadratic trend analyses using logistic regression models controlling for sex, race/ethnicity, and grade, p < 0.05. Significant linear trends (if present) across all available years are described first followed by linear changes in each segment of significant quadratic trends (if present).
  2. Based on t-test analysis, p < 0.05.
  3. Not available.