Sexual Behaviors that Contribute to Unintended Pregnancy and Sexually Transmitted Infections, Including HIV Infection

Percentage of High School Students Who Ever Had Sexual Intercourse, by Sex, Grade,* and Race/Ethnicity,* 2013 * 10 > 9, 11 > 9, 11 > 10, 12 > 9, 12 > 10, 12 > 11; B > H, B > W (Based on t-test analysis, p < 0.05.) Black and White races are non-Hispanic. National Youth Risk Behavior Survey, 2013

Percentage of High School Students Who Ever Had Sexual Intercourse, * * Decreased , decreased , no change [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).] National Youth Risk Behavior Surveys,

Range and Median Percentage of High School Students Who Ever Had Sexual Intercourse, Across 36 States and 20 Cities, 2013 State and Local Youth Risk Behavior Surveys, 2013

No Data 35.2% % 38.8% % 43.5% % 47.3% % Percentage of High School Students Who Ever Had Sexual Intercourse State Youth Risk Behavior Surveys, 2013

Percentage of High School Students Who Had Sexual Intercourse Before Age 13 Years,* by Sex, † Grade, and Race/Ethnicity, † 2013 *For the first time. † M > F; B > H, B > W, H > W (Based on t-test analysis, p < 0.05.) Black and White races are non-Hispanic. National Youth Risk Behavior Survey, 2013

Percentage of High School Students Who Had Sexual Intercourse Before Age 13 Years,* † *For the first time. † Decreased , decreased , decreased [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).] National Youth Risk Behavior Surveys,

Range and Median Percentage of High School Students Who Had Sexual Intercourse Before Age 13 Years,* Across 38 States and 21 Cities, 2013 *For the first time. State and Local Youth Risk Behavior Surveys, 2013

No Data 2.6% - 3.8% 3.9% - 4.7% 4.8% - 5.3% 5.4% % Percentage of High School Students Who Had Sexual Intercourse Before Age 13 Years* *For the first time. State Youth Risk Behavior Surveys, 2013

Percentage of High School Students Who Had Sexual Intercourse With Four or More Persons,* by Sex, † Grade, † and Race/Ethnicity, † 2013 *During their life. † M > F; 10 > 9, 11 > 9, 11 > 10, 12 > 9, 12 > 10, 12 > 11; B > H, B > W (Based on t-test analysis, p < 0.05.) Black and White races are non-Hispanic. National Youth Risk Behavior Survey, 2013

Percentage of High School Students Who Had Sexual Intercourse With Four or More Persons,* † *During their life. † Decreased , decreased , no change [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).] National Youth Risk Behavior Surveys,

Range and Median Percentage of High School Students Who Had Sexual Intercourse With Four or More Persons,* Across 35 States and 21 Cities, 2013 *During their life. State and Local Youth Risk Behavior Surveys, 2013

No Data 7.7% % 10.8% % 12.6% % 15.1% % Percentage of High School Students Who Had Sexual Intercourse With Four or More Persons* *During their life. State Youth Risk Behavior Surveys, 2013

Percentage of High School Students Who Were Currently Sexually Active,* by Sex, Grade, † and Race/Ethnicity, † 2013 *Sexual intercourse with at least one person during the 3 months before the survey. † 10 > 9, 11 > 9, 11 > 10, 12 > 9, 12 > 10, 12 > 11; B > H, B > W (Based on t-test analysis, p < 0.05.) Black and White races are non-Hispanic. National Youth Risk Behavior Survey, 2013

Percentage of High School Students Who Were Currently Sexually Active,* † *Sexual intercourse with at least one person during the 3 months before the survey. † Decreased [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).] National Youth Risk Behavior Surveys,

Range and Median Percentage of High School Students Who Were Currently Sexually Active,* Across 36 States and 20 Cities, 2013 *Sexual intercourse with at least one person during the 3 months before the survey. State and Local Youth Risk Behavior Surveys, 2013

No Data 24.7% % 27.6% % 30.9% % 33.5% % Percentage of High School Students Who Were Currently Sexually Active* *Sexual intercourse with at least one person during the 3 months before the survey. State Youth Risk Behavior Surveys, 2013

Percentage of High School Students Who Used a Condom,* by Sex, † Grade, † and Race/Ethnicity, † 2013 *During last sexual intercourse among the 34.0% of students nationwide who were currently sexually active. † M > F; 9 > 12, 10 > 12, 11 > 12; B > H, B > W (Based on t-test analysis, p < 0.05.) Black and White races are non-Hispanic. National Youth Risk Behavior Survey, 2013

Percentage of High School Students Who Used a Condom,* † *During last sexual intercourse among the 34.0% of students nationwide who were currently sexually active. † Increased , increased , decreased [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).] National Youth Risk Behavior Surveys,

Range and Median Percentage of High School Students Who Used a Condom,* Across 36 States and 20 Cities, 2013 *During last sexual intercourse among the 34.0% of students nationwide who were currently sexually active. State and Local Youth Risk Behavior Surveys, 2013

No Data 45.9% % 55.7% % 58.6% % 61.0% % Percentage of High School Students Who Used a Condom* *During last sexual intercourse among the 34.0% of students nationwide who were currently sexually active. State Youth Risk Behavior Surveys, 2013

Percentage of High School Students Who Used Birth Control Pills,* by Sex, † Grade, † and Race/Ethnicity, † 2013 *Before last sexual intercourse to prevent pregnancy among the 34.0% of students nationwide who were currently sexually active. † F > M; 10 > 9, 11 > 9, 12 > 9, 12 > 10, 12 > 11; W > B, W > H (Based on t-test analysis, p < 0.05.) Black and White races are non-Hispanic. National Youth Risk Behavior Survey, 2013

Percentage of High School Students Who Used Birth Control Pills,* † *Before last sexual intercourse to prevent pregnancy among the 34.0% of students nationwide who were currently sexually active. † Decreased, , increased, [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).] National Youth Risk Behavior Surveys,

Range and Median Percentage of High School Students Who Used Birth Control Pills,* Across 34 States and 20 Cities, 2013 *Before last sexual intercourse to prevent pregnancy among the 34.0% of students nationwide who were currently sexually active. State and Local Youth Risk Behavior Surveys, 2013

No Data 12.3% % 16.4% % 20.0% % 23.7% % Percentage of High School Students Who Used Birth Control Pills* *Before last sexual intercourse to prevent pregnancy among the 34.0% of students nationwide who were currently sexually active. State Youth Risk Behavior Surveys, 2013

Percentage of High School Students Who Used an IUD (e.g., Mirena or ParaGard) or Implant (e.g., Implanon or Nexplanon),* by Sex, Grade, † and Race/Ethnicity, 2013 *Before last sexual intercourse to prevent pregnancy among the 34.0% of students nationwide who were currently sexually active. † 11 > 9, 12 > 9, 12 > 10 (Based on t-test analysis, p < 0.05.) Black and White races are non-Hispanic. National Youth Risk Behavior Survey, 2013

Range and Median Percentage of High School Students Who Used an IUD (e.g., Mirena or ParaGard) or Implant (e.g., Implanon or Nexplanon),* Across 34 States and 20 Cities, 2013 *Before last sexual intercourse to prevent pregnancy among the 34.0% of students nationwide who were currently sexually active. State and Local Youth Risk Behavior Surveys, 2013

No Data 0.3% - 1.7% 1.8% - 2.3% 2.4% - 2.6% 2.7% - 5.0% Percentage of High School Students Who Used an IUD (e.g., Mirena or ParaGard) or Implant (e.g., Implanon or Nexplanon)* *Before last sexual intercourse to prevent pregnancy among the 34.0% of students nationwide who were currently sexually active. State Youth Risk Behavior Surveys, 2013

Percentage of High School Students Who Used a Shot (e.g., Depo- Provera), Patch (e.g., OrthoEvra), or Birth Control Ring (e.g., NuvaRing),* by Sex, † Grade, † and Race/Ethnicity, 2013 *Before last sexual intercourse to prevent pregnancy among the 34.0% of students nationwide who were currently sexually active. † F > M; 10 > 9, 11 > 9, 12 > 9 (Based on t-test analysis, p < 0.05.) Black and White races are non-Hispanic. National Youth Risk Behavior Survey, 2013

Range and Median Percentage of High School Students Who Used a Shot (e.g., Depo-Provera), Patch (e.g., OrthoEvra), or Birth Control Ring (e.g., NuvaRing),* Across 34 States and 20 Cities, 2013 *Before last sexual intercourse to prevent pregnancy among the 34.0% of students nationwide who were currently sexually active. State and Local Youth Risk Behavior Surveys, 2013

No Data 1.3% - 4.5% 4.6% - 5.8% 5.9% - 6.9% 7.0% - 9.5% Percentage of High School Students Who Used a Shot (e.g., Depo- Provera), Patch (e.g., OrthoEvra), or Birth Control Ring (e.g., NuvaRing)* *Before last sexual intercourse to prevent pregnancy among the 34.0% of students nationwide who were currently sexually active. State Youth Risk Behavior Surveys, 2013

Percentage of High School Students Who Used Birth Control Pills; an IUD or Implant; or a Shot, Patch, or Birth Control Ring,* by Sex, † Grade, † and Race/Ethnicity, † 2013 *Before last sexual intercourse to prevent pregnancy among the 34.0% of students nationwide who were currently sexually active. † F > M; 10 > 9, 11 > 9, 12 > 9, 12 > 10, 12 > 11; W > B, W > H (Based on t-test analysis, p < 0.05.) Black and White races are non-Hispanic. National Youth Risk Behavior Survey, 2013

Percentage of High School Students Who Used Birth Control Pills; an IUD or Implant; or a Shot, Patch, or Birth Control Ring,* † *Before last sexual intercourse to prevent pregnancy among the 34.0% of students nationwide who were currently sexually active. † No change [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).] National Youth Risk Behavior Surveys,

Range and Median Percentage of High School Students Who Used Birth Control Pills; an IUD or Implant; or a Shot, Patch, or Birth Control Ring,* Across 34 States and 20 Cities, 2013 *Before last sexual intercourse to prevent pregnancy among the 34.0% of students nationwide who were currently sexually active. State and Local Youth Risk Behavior Surveys, 2013

No Data 19.8% % 24.4% % 27.5% % 32.2% % Percentage of High School Students Who Used Birth Control Pills; an IUD or Implant; or a Shot, Patch, or Birth Control Ring* *Before last sexual intercourse to prevent pregnancy among the 34.0% of students nationwide who were currently sexually active. State Youth Risk Behavior Surveys, 2013

Percentage of High School Students Who Used Both a Condom During and Birth Control Pills; an IUD or Implant; or a Shot, Patch, or Birth Control Ring Before Last Sexual Intercourse,* by Sex, † Grade, † and Race/Ethnicity, † 2013 *To prevent STD and pregnancy among the 34.0% of students nationwide who were currently sexually active. † F > M; 11 > 9, 12 > 9; W > B, W > H (Based on t-test analysis, p < 0.05.) Black and White races are non-Hispanic. National Youth Risk Behavior Survey, 2013

Percentage of High School Students Who Used Both a Condom During and Birth Control Pills; an IUD or Implant; or a Shot, Patch, or Birth Control Ring Before Last Sexual Intercourse,* † *To prevent STD and pregnancy among the 34.0% of students nationwide who were currently sexually active. † No change [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).] National Youth Risk Behavior Surveys,

Range and Median Percentage of High School Students Who Used Both a Condom During and Birth Control Pills; an IUD or Implant; or a Shot, Patch, or Birth Control Ring Before Last Sexual Intercourse,* Across 34 States and 20 Cities, 2013 *To prevent STD and pregnancy among the 34.0% of students nationwide who were currently sexually active. State and Local Youth Risk Behavior Surveys, 2013

No Data 6.6% - 8.5% 8.6% - 9.7% 9.8% % 11.3% % Percentage of High School Students Who Used Both a Condom During and Birth Control Pills; an IUD or Implant; or a Shot, Patch, or Birth Control Ring Before Last Sexual Intercourse* *To prevent STD and pregnancy among the 34.0% of students nationwide who were currently sexually active. State Youth Risk Behavior Surveys, 2013

Percentage of High School Students Who Did Not Use Any Method to Prevent Pregnancy,* by Sex, † Grade, and Race/Ethnicity, † 2013 *During last sexual intercourse among the 34.0% of students nationwide who were currently sexually active. † F > M; B > W, H > W (Based on t-test analysis, p < 0.05.) Black and White races are non-Hispanic. National Youth Risk Behavior Survey, 2013

Percentage of High School Students Who Did Not Use Any Method to Prevent Pregnancy,* † *During last sexual intercourse among the 34.0% of students nationwide who were currently sexually active. † Decreased , decreased , no change [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).] National Youth Risk Behavior Surveys,

Range and Median Percentage of High School Students Who Did Not Use Any Method to Prevent Pregnancy,* Across 34 States and 20 Cities, 2013 *During last sexual intercourse among the 34.0% of students nationwide who were currently sexually active. State and Local Youth Risk Behavior Surveys, 2013

No Data 7.6% % 11.5% % 13.4% % 15.1% % Percentage of High School Students Who Did Not Use Any Method to Prevent Pregnancy* *During last sexual intercourse among the 34.0% of students nationwide who were currently sexually active. State Youth Risk Behavior Surveys, 2013

Percentage of High School Students Who Drank Alcohol or Used Drugs Before Last Sexual Intercourse,* by Sex, † Grade, and Race/Ethnicity, 2013 *Among the 34.0% of students nationwide who were currently sexually active. † M > F (Based on t-test analysis, p < 0.05.) Black and White races are non-Hispanic. National Youth Risk Behavior Survey, 2013

Percentage of High School Students Who Drank Alcohol or Used Drugs Before Last Sexual Intercourse,* † *Among the 34.0% of students nationwide who were currently sexually active. † Increased, , decreased, [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).] National Youth Risk Behavior Surveys,

Range and Median Percentage of High School Students Who Drank Alcohol or Used Drugs Before Last Sexual Intercourse,* Across 35 States and 20 Cities, 2013 *Among the 34.0% of students nationwide who were currently sexually active. State and Local Youth Risk Behavior Surveys, 2013

No Data 15.3% % 19.1% % 20.8% % 22.7% % Percentage of High School Students Who Drank Alcohol or Used Drugs Before Last Sexual Intercourse* *Among the 34.0% of students nationwide who were currently sexually active. State Youth Risk Behavior Surveys, 2013

Percentage of High School Students Who Were Ever Taught in School About AIDS or HIV Infection, by Sex, Grade,* and Race/Ethnicity,* 2013 * 10 > 9, 11 > 9, 12 > 9; W > B (Based on t-test analysis, p < 0.05.) Black and White races are non-Hispanic. National Youth Risk Behavior Survey, 2013

Percentage of High School Students Who Were Ever Taught in School About AIDS or HIV Infection, * * Increased, , decreased, [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).] National Youth Risk Behavior Surveys,

Range and Median Percentage of High School Students Who Were Ever Taught in School About AIDS or HIV Infection, Across 33 States and 20 Cities, 2013 State and Local Youth Risk Behavior Surveys, 2013

No Data 73.1% % 80.6% % 82.6% % 84.8% % Percentage of High School Students Who Were Ever Taught in School About AIDS or HIV Infection State Youth Risk Behavior Surveys, 2013

Percentage of High School Students Who Were Ever Tested for HIV,* by Sex, † Grade, † and Race/Ethnicity, † 2013 *Not including tests done when donating blood. † F > M; 11 > 9, 11 > 10, 12 > 9, 12 > 10; B > H, B > W (Based on t-test analysis, p < 0.05.) Black and White races are non-Hispanic. National Youth Risk Behavior Survey, 2013

Percentage of High School Students Who Were Ever Tested for HIV,* † *Not including tests done when donating blood. † No change [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).] National Youth Risk Behavior Surveys,