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*Among students who had ridden a bicycle

Analysis of bicycle helmet, seat belt use, weapon carrying, and physical fight involvement among middle school students in Delaware from 2007-2015. Trends by sex, grade, and race/ethnicity presented. Results based on YRBS data.

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*Among students who had ridden a bicycle

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  1. Percentage of Middle School Students Who Never or Rarely Wore a Bicycle Helmet,* by Sex, Grade,† and Race/Ethnicity,† 2015 *Among students who had ridden a bicycle †8th > 6th, 8th > 7th; B > W, H > W (Based on t-test analysis, p < 0.05.) All Hispanic students are included in the Hispanic category. All other races are non-Hispanic. Note: This graph contains weighted results. Delaware - YRBS, 2015 - QN6

  2. Percentage of Middle School Students Who Never or Rarely Wore a Bicycle Helmet,* 2007-2015† *Among students who had ridden a bicycle †Decreased 2007-2015 [Based on linear trend analyses using logistic regression models controlling for sex, race/ethnicity, and grade (p < 0.05).] Note: This graph contains weighted results. Delaware - YRBS, 2007-2015 - QN6

  3. Percentage of Middle School Students Who Never or Rarely Wore a Helmet When Rollerblading or Skateboarding,* by Sex, Grade,† and Race/Ethnicity,† 2015 *Among students who used rollerblades or rode a skateboard †7th > 6th, 8th > 6th; B > W, H > W (Based on t-test analysis, p < 0.05.) All Hispanic students are included in the Hispanic category. All other races are non-Hispanic. Note: This graph contains weighted results. Delaware - YRBS, 2015 - QN7

  4. Percentage of Middle School Students Who Never or Rarely Wore a Helmet When Rollerblading or Skateboarding,* 2009-2015† *Among students who used rollerblades or rode a skateboard †Decreased 2009-2015 [Based on linear trend analyses using logistic regression models controlling for sex, race/ethnicity, and grade (p < 0.05).] Note: This graph contains weighted results. Delaware - YRBS, 2009-2015 - QN7

  5. Percentage of Middle School Students Who Never or Rarely Wore a Seat Belt,* by Sex, Grade,† and Race/Ethnicity,† 2015 *When riding in a car †8th > 6th; B > W, H > W (Based on t-test analysis, p < 0.05.) All Hispanic students are included in the Hispanic category. All other races are non-Hispanic. Note: This graph contains weighted results. Delaware - YRBS, 2015 - QN8

  6. Percentage of Middle School Students Who Never or Rarely Wore a Seat Belt,* 2007-2015† *When riding in a car †Decreased 2007-2015 [Based on linear trend analyses using logistic regression models controlling for sex, race/ethnicity, and grade (p < 0.05).] Note: This graph contains weighted results. Delaware - YRBS, 2007-2015 - QN8

  7. Percentage of Middle School Students Who Rode with a Driver Who Had Been Drinking Alcohol,* by Sex,† Grade,† and Race/Ethnicity, 2015 *In a car †F > M; 8th > 6th, 8th > 7th (Based on t-test analysis, p < 0.05.) All Hispanic students are included in the Hispanic category. All other races are non-Hispanic. Note: This graph contains weighted results. Delaware - YRBS, 2015 - QN9

  8. Percentage of Middle School Students Who Rode with a Driver Who Had Been Drinking Alcohol,* 2007-2015† *In a car †Decreased 2007-2015 [Based on linear trend analyses using logistic regression models controlling for sex, race/ethnicity, and grade (p < 0.05).] Note: This graph contains weighted results. Delaware - YRBS, 2007-2015 - QN9

  9. Percentage of Middle School Students Who Carried a Weapon,* by Sex,† Grade,† and Race/Ethnicity,† 2015 *Such as a gun, knife, or club †M > F; 8th > 6th, 8th > 7th; W > B, W > H (Based on t-test analysis, p < 0.05.) All Hispanic students are included in the Hispanic category. All other races are non-Hispanic. Note: This graph contains weighted results. Delaware - YRBS, 2015 - QN10

  10. Percentage of Middle School Students Who Carried a Weapon,* 2009-2015† *Such as a gun, knife, or club †No change 2009-2015 [Based on linear trend analyses using logistic regression models controlling for sex, race/ethnicity, and grade (p < 0.05).] Note: This graph contains weighted results. Delaware - YRBS, 2009-2015 - QN10

  11. Percentage of Middle School Students Who Were in a Physical Fight, by Sex,* Grade, and Race/Ethnicity,* 2015 *M > F; B > H, B > W, H > W (Based on t-test analysis, p < 0.05.) All Hispanic students are included in the Hispanic category. All other races are non-Hispanic. Note: This graph contains weighted results. Delaware - YRBS, 2015 - QN11

  12. Percentage of Middle School Students Who Were in a Physical Fight, 2007-2015* *Decreased 2007-2015 [Based on linear trend analyses using logistic regression models controlling for sex, race/ethnicity, and grade (p < 0.05).] Note: This graph contains weighted results. Delaware - YRBS, 2007-2015 - QN11

  13. Percentage of Middle School Students Who Were Injured in a Physical Fight,* by Sex, Grade, and Race/Ethnicity, 2015 *Injuries had to be treated by a doctor or nurse All Hispanic students are included in the Hispanic category. All other races are non-Hispanic. Note: This graph contains weighted results. Delaware - YRBS, 2015 - QN12

  14. Percentage of Middle School Students Who Were Injured in a Physical Fight,* 2011-2015† *Injuries had to be treated by a doctor or nurse †Decreased 2011-2015 [Based on linear trend analyses using logistic regression models controlling for sex, race/ethnicity, and grade (p < 0.05).] Note: This graph contains weighted results. Delaware - YRBS, 2011-2015 - QN12

  15. Percentage of Middle School Students Who Were Bullied on School Property, by Sex,* Grade, and Race/Ethnicity,* 2015 *F > M; W > B, W > H (Based on t-test analysis, p < 0.05.) All Hispanic students are included in the Hispanic category. All other races are non-Hispanic. Note: This graph contains weighted results. Delaware - YRBS, 2015 - QN13

  16. Percentage of Middle School Students Who Were Bullied on School Property, 2013-2015* *No change 2013-2015 [Based on linear trend analyses using logistic regression models controlling for sex, race/ethnicity, and grade (p < 0.05).] Note: This graph contains weighted results. Delaware - YRBS, 2013-2015 - QN13

  17. Percentage of Middle School Students Who Were Electronically Bullied,* by Sex,† Grade,† and Race/Ethnicity,† 2015 *Including through e-mail, chat rooms, instant messaging, web sites, or texting †F > M; 8th > 6th, 8th > 7th; W > B, W > H (Based on t-test analysis, p < 0.05.) All Hispanic students are included in the Hispanic category. All other races are non-Hispanic. Note: This graph contains weighted results. Delaware - YRBS, 2015 - QN14

  18. Percentage of Middle School Students Who Were Electronically Bullied,* 2013-2015† *Including through e-mail, chat rooms, instant messaging, web sites, or texting †No change 2013-2015 [Based on linear trend analyses using logistic regression models controlling for sex, race/ethnicity, and grade (p < 0.05).] Note: This graph contains weighted results. Delaware - YRBS, 2013-2015 - QN14

  19. Percentage of Middle School Students Who Seriously Thought About Killing Themselves, by Sex,* Grade,* and Race/Ethnicity, 2015 *F > M; 8th > 6th (Based on t-test analysis, p < 0.05.) All Hispanic students are included in the Hispanic category. All other races are non-Hispanic. Note: This graph contains weighted results. Delaware - YRBS, 2015 - QN15

  20. Percentage of Middle School Students Who Seriously Thought About Killing Themselves, 2007-2015* *Decreased 2007-2015 [Based on linear trend analyses using logistic regression models controlling for sex, race/ethnicity, and grade (p < 0.05).] Note: This graph contains weighted results. Delaware - YRBS, 2007-2015 - QN15

  21. Percentage of Middle School Students Who Made a Plan About How They Would Kill Themselves, by Sex,* Grade,* and Race/Ethnicity, 2015 *F > M; 7th > 6th, 8th > 6th (Based on t-test analysis, p < 0.05.) All Hispanic students are included in the Hispanic category. All other races are non-Hispanic. Note: This graph contains weighted results. Delaware - YRBS, 2015 - QN16

  22. Percentage of Middle School Students Who Made a Plan About How They Would Kill Themselves, 2007-2015* *Increased 2007-2015 [Based on linear trend analyses using logistic regression models controlling for sex, race/ethnicity, and grade (p < 0.05).] Note: This graph contains weighted results. Delaware - YRBS, 2007-2015 - QN16

  23. Percentage of Middle School Students Who Tried to Kill Themselves, by Sex,* Grade, and Race/Ethnicity,* 2015 *F > M; H > W (Based on t-test analysis, p < 0.05.) All Hispanic students are included in the Hispanic category. All other races are non-Hispanic. Note: This graph contains weighted results. Delaware - YRBS, 2015 - QN17

  24. Percentage of Middle School Students Who Tried to Kill Themselves, 2013-2015* *No change 2013-2015 [Based on linear trend analyses using logistic regression models controlling for sex, race/ethnicity, and grade (p < 0.05).] Note: This graph contains weighted results. Delaware - YRBS, 2013-2015 - QN17

  25. Percentage of Middle School Students Who Ever Tried Cigarette Smoking,* by Sex, Grade,† and Race/Ethnicity,† 2015 *Even one or two puffs †8th > 6th, 8th > 7th; H > W (Based on t-test analysis, p < 0.05.) All Hispanic students are included in the Hispanic category. All other races are non-Hispanic. Note: This graph contains weighted results. Delaware - YRBS, 2015 - QN18

  26. Percentage of Middle School Students Who Ever Tried Cigarette Smoking,* 2007-2015† *Even one or two puffs †Decreased 2007-2015 [Based on linear trend analyses using logistic regression models controlling for sex, race/ethnicity, and grade (p < 0.05).] Note: This graph contains weighted results. Delaware - YRBS, 2007-2015 - QN18

  27. Percentage of Middle School Students Who Smoked a Whole Cigarette Before Age 11 Years,* by Sex, Grade, and Race/Ethnicity,† 2015 *For the first time †H > W (Based on t-test analysis, p < 0.05.) All Hispanic students are included in the Hispanic category. All other races are non-Hispanic. Note: This graph contains weighted results. Delaware - YRBS, 2015 - QN19

  28. Percentage of Middle School Students Who Smoked a Whole Cigarette Before Age 11 Years,* 2007-2015† *For the first time †Decreased 2007-2015 [Based on linear trend analyses using logistic regression models controlling for sex, race/ethnicity, and grade (p < 0.05).] Note: This graph contains weighted results. Delaware - YRBS, 2007-2015 - QN19

  29. Percentage of Middle School Students Who Currently Smoked Cigarettes,* by Sex, Grade,† and Race/Ethnicity,† 2015 *On at least 1 day during the 30 days before the survey †7th > 6th, 8th > 6th; H > B, W > B (Based on t-test analysis, p < 0.05.) All Hispanic students are included in the Hispanic category. All other races are non-Hispanic. Note: This graph contains weighted results. Delaware - YRBS, 2015 - QN20

  30. Percentage of Middle School Students Who Currently Smoked Cigarettes,* 2007-2015† *On at least 1 day during the 30 days before the survey †Decreased 2007-2015 [Based on linear trend analyses using logistic regression models controlling for sex, race/ethnicity, and grade (p < 0.05).] Note: This graph contains weighted results. Delaware - YRBS, 2007-2015 - QN20

  31. Percentage of Middle School Students Who Currently Frequently Smoked Cigarettes,* by Sex,† Grade,† and Race/Ethnicity, 2015 *On 20 or more days during the 30 days before the survey †M > F; 8th > 6th (Based on t-test analysis, p < 0.05.) All Hispanic students are included in the Hispanic category. All other races are non-Hispanic. Note: This graph contains weighted results. Delaware - YRBS, 2015 - QNFRCIG

  32. Percentage of Middle School Students Who Currently Frequently Smoked Cigarettes,* 2007-2015† *On 20 or more days during the 30 days before the survey †Decreased 2007-2015 [Based on linear trend analyses using logistic regression models controlling for sex, race/ethnicity, and grade (p < 0.05).] Note: This graph contains weighted results. Delaware - YRBS, 2007-2015 - QNFRCIG

  33. Percentage of Middle School Students Who Currently Smoked Cigarettes Daily,* by Sex,† Grade,† and Race/Ethnicity, 2015 *On all 30 days during the 30 days before the survey †M > F; 8th > 6th (Based on t-test analysis, p < 0.05.) All Hispanic students are included in the Hispanic category. All other races are non-Hispanic. Note: This graph contains weighted results. Delaware - YRBS, 2015 - QNDAYCIG

  34. Percentage of Middle School Students Who Currently Smoked Cigarettes Daily,* 2007-2015† *On all 30 days during the 30 days before the survey †Decreased 2007-2015 [Based on linear trend analyses using logistic regression models controlling for sex, race/ethnicity, and grade (p < 0.05).] Note: This graph contains weighted results. Delaware - YRBS, 2007-2015 - QNDAYCIG

  35. Percentage of Middle School Students Who Smoked More Than 10 Cigarettes Per Day,* by Sex, Grade, and Race/Ethnicity, 2015 *During the 30 days before the survey, among students who currently smoked cigarettes on the days they smoked All Hispanic students are included in the Hispanic category. All other races are non-Hispanic. Missing bar indicates fewer than 100 students in this subgroup. Note: This graph contains weighted results. Delaware - YRBS, 2015 - QN21

  36. Percentage of Middle School Students Who Usually Obtained Their Own Cigarettes by Buying Them in a Store or Gas Station,* by Sex, Grade, and Race/Ethnicity, 2015 *During the 30 days before the survey, among the students who currently smoked cigarettes All Hispanic students are included in the Hispanic category. All other races are non-Hispanic. Missing bar indicates fewer than 100 students in this subgroup. Note: This graph contains weighted results. Delaware - YRBS, 2015 - QN22

  37. Percentage of Middle School Students Who Currently Used Smokeless Tobacco,* by Sex,† Grade, and Race/Ethnicity, 2015 *Chewing tobacco, snuff, or dip on at least 1 day during the 30 days before the survey †M > F (Based on t-test analysis, p < 0.05.) All Hispanic students are included in the Hispanic category. All other races are non-Hispanic. Note: This graph contains weighted results. Delaware - YRBS, 2015 - QN23

  38. Percentage of Middle School Students Who Currently Used Smokeless Tobacco,* 2007-2015† *Chewing tobacco, snuff, or dip on at least 1 day during the 30 days before the survey †Decreased 2007-2015 [Based on linear trend analyses using logistic regression models controlling for sex, race/ethnicity, and grade (p < 0.05).] Note: This graph contains weighted results. Delaware - YRBS, 2007-2015 - QN23

  39. Percentage of Middle School Students Who Currently Smoked Cigars,* by Sex, Grade,† and Race/Ethnicity,† 2015 *Cigars, cigarillos, or little cigars on at least 1 day during the 30 days before the survey †8th > 6th; H > W (Based on t-test analysis, p < 0.05.) All Hispanic students are included in the Hispanic category. All other races are non-Hispanic. Note: This graph contains weighted results. Delaware - YRBS, 2015 - QN24

  40. Percentage of Middle School Students Who Currently Smoked Cigars,* 2007-2015† *Cigars, cigarillos, or little cigars on at least 1 day during the 30 days before the survey †Decreased 2007-2015 [Based on linear trend analyses using logistic regression models controlling for sex, race/ethnicity, and grade (p < 0.05).] Note: This graph contains weighted results. Delaware - YRBS, 2007-2015 - QN24

  41. Percentage of Middle School Students Who Ever Used Electronic Vapor Products,* by Sex, Grade,† and Race/Ethnicity,† 2015 *E-cigarettes, e-cigars, e-pipes, vape pipes, vaping pens, e-hookahs, and hookah pens such as blu, NJOY, or Starbuzz †7th > 6th, 8th > 6th, 8th > 7th; B > W, H > W (Based on t-test analysis, p < 0.05.) All Hispanic students are included in the Hispanic category. All other races are non-Hispanic. Note: This graph contains weighted results. Delaware - YRBS, 2015 - QN25

  42. Percentage of Middle School Students Who Currently Used Electronic Vapor Products,* by Sex, Grade,† and Race/Ethnicity,† 2015 *E-cigarettes, e-cigars, e-pipes, vape pipes, vaping pens, e-hookahs, and hookah pens such as blu, NJOY, or Starbuzz on at least 1 day during the 30 days before the survey †8th > 6th; B > W, H > W (Based on t-test analysis, p < 0.05.) All Hispanic students are included in the Hispanic category. All other races are non-Hispanic. Note: This graph contains weighted results. Delaware - YRBS, 2015 - QN26

  43. Percentage of Middle School Students Who Currently Used Tobacco,* by Sex, Grade,† and Race/Ethnicity,† 2015 *Current cigarette, smokeless tobacco, cigar, or electronic vapor product use on at least 1 day during the 30 days before the survey †8th > 6th, 8th > 7th; B > W, H > W (Based on t-test analysis, p < 0.05.) All Hispanic students are included in the Hispanic category. All other races are non-Hispanic. Note: This graph contains weighted results. Delaware - YRBS, 2015 - QNTOB4

  44. Percentage of Middle School Students Who Currently Used Cigarettes, Cigars, or Smokeless Tobacco,* by Sex, Grade,† and Race/Ethnicity, 2015 *On at least 1 day during the 30 days before the survey †8th > 6th (Based on t-test analysis, p < 0.05.) All Hispanic students are included in the Hispanic category. All other races are non-Hispanic. Note: This graph contains weighted results. Delaware - YRBS, 2015 - QNTOB3

  45. Percentage of Middle School Students Who Currently Used Cigarettes, Cigars, or Smokeless Tobacco,* 2007-2015† *On at least 1 day during the 30 days before the survey †Decreased 2007-2015 [Based on linear trend analyses using logistic regression models controlling for sex, race/ethnicity, and grade (p < 0.05).] Note: This graph contains weighted results. Delaware - YRBS, 2007-2015 - QNTOB3

  46. Percentage of Middle School Students Who Currently Smoked Cigarettes or Cigars,* by Sex, Grade,† and Race/Ethnicity,† 2015 *On at least 1 day during the 30 days before the survey †8th > 6th, 8th > 7th; H > W (Based on t-test analysis, p < 0.05.) All Hispanic students are included in the Hispanic category. All other races are non-Hispanic. Note: This graph contains weighted results. Delaware - YRBS, 2015 - QNTOB2

  47. Percentage of Middle School Students Who Currently Smoked Cigarettes or Cigars,* 2007-2015† *On at least 1 day during the 30 days before the survey †Decreased 2007-2015 [Based on linear trend analyses using logistic regression models controlling for sex, race/ethnicity, and grade (p < 0.05).] Note: This graph contains weighted results. Delaware - YRBS, 2007-2015 - QNTOB2

  48. Percentage of Middle School Students Who Did Not Currently Use Tobacco,* by Sex, Grade,† and Race/Ethnicity,† 2015 *Current cigarette, smokeless tobacco, cigar, or electronic vapor product use on at least 1 day during the 30 days before the survey †6th > 7th, 6th > 8th, 7th > 8th; W > B, W > H (Based on t-test analysis, p < 0.05.) All Hispanic students are included in the Hispanic category. All other races are non-Hispanic. Note: This graph contains weighted results. Delaware - YRBS, 2015 - QNNOTOB4

  49. Percentage of Middle School Students Who Did Not Currently Use Cigarettes, Cigars, or Smokeless Tobacco,* by Sex, Grade,† and Race/Ethnicity, 2015 *On at least 1 day during the 30 days before the survey †6th > 7th, 6th > 8th (Based on t-test analysis, p < 0.05.) All Hispanic students are included in the Hispanic category. All other races are non-Hispanic. Note: This graph contains weighted results. Delaware - YRBS, 2015 - QNNOTOB3

  50. Percentage of Middle School Students Who Did Not Currently Use Cigarettes, Cigars, or Smokeless Tobacco,* 2007-2015† *On at least 1 day during the 30 days before the survey †Increased 2007-2015 [Based on linear trend analyses using logistic regression models controlling for sex, race/ethnicity, and grade (p < 0.05).] Note: This graph contains weighted results. Delaware - YRBS, 2007-2015 - QNNOTOB3

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