2012 Youth Risk Behavior Survey Results
Nebraska High School Survey
Sample Statistics Report
 
Question number and summary, percentage, standard error, 95% confidence interval, 
number of students, and design effect
 
The average design effect across all items for this survey is 1.7
Note: Design effect is calculated differently for the 2013 Sample Statistics Report than it has been in the past. For 2013, the design effect 
for each question is calculated by dividing the variance for each question by the variance that would have resulted from a simple random 
sample. In previous years, design effect was calculated by dividing the standard error for each question by the standard error that would 
have resulted from a simple random sample. Consequently, design effects for 2013 will be larger than in the past even though no 
changes have been made to the standard YRBS sample design.
 
QN8. Among students who rode a bicycle during the past 12 months, the percentage who never
or rarely wore a bicycle helmet
 
Percentage                89.1%
Number of Students        1,260
Standard Error            1.11%
95% Confidence Interval  (86.7% - 91.2%)
Design Effect              1.6 
 
QN9. Percentage of students who never or rarely wore a seat belt when riding in a car
driven by someone else
 
Percentage                11.9%
Number of Students        1,796
Standard Error            1.14%
95% Confidence Interval  (9.8% - 14.3%)
Design Effect              2.2 
 
QN10. Percentage of students who rode one or more times during the past 30 days in a car
or other vehicle driven by someone who had been drinking alcohol
 
Percentage                20.3%
Number of Students        1,801
Standard Error            1.14%
95% Confidence Interval  (18.1% - 22.6%)
Design Effect              1.4 
 
QN11. Among students who drove a car or other vehicle during the past 30 days, the percentage
who drove when they had been drinking alcohol one or more times during the past 30 days
 
Percentage                 6.8%
Number of Students        1,204
Standard Error            1.03%
95% Confidence Interval  (5.0% - 9.2%)
Design Effect              2.0 
 
QN12. Among students who drove a car or other vehicle during the past 30 days, the percentage
who texted or e-mailed while driving on one or more of the past 30 days
 
Percentage                46.6%
Number of Students        1,229
Standard Error            2.45%
95% Confidence Interval  (41.8% - 51.5%)
Design Effect              3.0 
 
QN16. Percentage of students who did not go to school on one or more of the past 30 days
because they felt they would be unsafe at school or on their way to or from school
 
Percentage                 4.2%
Number of Students        1,805
Standard Error            0.61%
95% Confidence Interval  (3.2% - 5.6%)
Design Effect              1.7 
 
QN17. Percentage of students who had been threatened or injured with a weapon such as
a gun, knife, or club on school property one or more times during the past 12 months
 
Percentage                 6.4%
Number of Students        1,806
Standard Error            0.57%
95% Confidence Interval  (5.3% - 7.6%)
Design Effect              1.0 
 
QN18. Percentage of students who were in a physical fight one or more times during the
past 12 months
 
Percentage                20.1%
Number of Students        1,780
Standard Error            1.22%
95% Confidence Interval  (17.8% - 22.7%)
Design Effect              1.7 
 
QN19. Percentage of students who were in a physical fight one or more times during the
past 12 months in which they were injured and had to be treated by a doctor or nurse
 
Percentage                 2.1%
Number of Students        1,799
Standard Error            0.35%
95% Confidence Interval  (1.5% - 2.9%)
Design Effect              1.1 
 
QN20. Percentage of students who were in a physical fight on school property one or more
times during the past 12 months
 
Percentage                 5.7%
Number of Students        1,785
Standard Error            0.70%
95% Confidence Interval  (4.5% - 7.3%)
Design Effect              1.6 
 
QN21. Percentage of students who had ever been physically forced to have sexual intercourse
when they did not want to
 
Percentage                 8.6%
Number of Students        1,774
Standard Error            0.87%
95% Confidence Interval  (7.0% - 10.5%)
Design Effect              1.7 
 
QN22. Among students who dated or went out with someone during the past 12 months, the
percentage who had been physically hurt on purpose by someone they were dating or going
out with one or more times during the past 12 months
 
Percentage                 7.6%
Number of Students        1,230
Standard Error            0.87%
95% Confidence Interval  (6.0% - 9.5%)
Design Effect              1.3 
 
QN23. Among students who dated or went out with someone during the past 12 months, the
percentage who had been forced by someone they were dating or going out with to do sexual
things that they did not want to one or more times during the past 12 months
 
Percentage                10.1%
Number of Students        1,229
Standard Error            0.82%
95% Confidence Interval  (8.5% - 11.8%)
Design Effect              0.9 
 
QN24. Percentage of students who had ever been bullied on school property during the past 12 months
 
Percentage                20.8%
Number of Students        1,793
Standard Error            1.10%
95% Confidence Interval  (18.7% - 23.1%)
Design Effect              1.3 
 
QN25. Percentage of students who had ever been electronically bullied during the past 12 months
 
Percentage                15.7%
Number of Students        1,800
Standard Error            0.91%
95% Confidence Interval  (14.0% - 17.6%)
Design Effect              1.1 
 
QN26. Percentage of students who felt so sad or hopeless almost every day for two weeks
or more in a row that they stopped doing some usual activities during the past 12 months
 
Percentage                19.5%
Number of Students        1,795
Standard Error            1.08%
95% Confidence Interval  (17.5% - 21.8%)
Design Effect              1.3 
 
QN27. Percentage of students who seriously considered attempting suicide during the past 12 months
 
Percentage                12.1%
Number of Students        1,795
Standard Error            0.79%
95% Confidence Interval  (10.6% - 13.8%)
Design Effect              1.1 
 
QN28. Percentage of students who made a plan about how they would attempt suicide during
the past 12 months
 
Percentage                 9.8%
Number of Students        1,801
Standard Error            0.77%
95% Confidence Interval  (8.4% - 11.4%)
Design Effect              1.2 
 
QN29. Percentage of students who actually attempted suicide one or more times during the
past 12 months
 
Percentage                 6.0%
Number of Students        1,568
Standard Error            0.66%
95% Confidence Interval  (4.8% - 7.5%)
Design Effect              1.2 
 
QN30. Percentage of students who made a suicide attempt during the past 12 months that
resulted in an injury, poisoning, or overdose that had to be treated by a doctor or nurse
 
Percentage                 1.8%
Number of Students        1,558
Standard Error            0.41%
95% Confidence Interval  (1.2% - 2.9%)
Design Effect              1.5 
 
QN31. Percentage of students who ever tried cigarette smoking, even one or two puffs
 
Percentage                31.9%
Number of Students        1,805
Standard Error            1.53%
95% Confidence Interval  (28.9% - 35.0%)
Design Effect              2.0 
 
QN32. Percentage of students who smoked a whole cigarette for the first time before age 13 years
 
Percentage                 6.5%
Number of Students        1,790
Standard Error            0.71%
95% Confidence Interval  (5.2% - 8.1%)
Design Effect              1.5 
 
QN33. Percentage of students who smoked cigarettes on one or more of the past 30 days
 
Percentage                10.9%
Number of Students        1,781
Standard Error            0.93%
95% Confidence Interval  (9.1% - 12.9%)
Design Effect              1.6 
 
QN34. Among students who reported current cigarette use, the percentage who smoked more
than 10 cigarettes per day on the days they smoked during the past 30 days
 
Percentage                 4.8%
Number of Students          182
Standard Error            1.92%
95% Confidence Interval  (2.2% - 10.4%)
Design Effect              1.5 
 
QN35. Among students who were less than 18 years of age and who reported current cigarette
use, the percentage who usually got their own cigarettes by buying them in a store or
gas station during the past 30 days
 
Percentage                 6.2%
Number of Students          171
Standard Error            1.92%
95% Confidence Interval  (3.3% - 11.3%)
Design Effect              1.1 
 
QN36. Percentage of students who smoked cigarettes on school property on one or more of
the past 30 days
 
Percentage                 2.3%
Number of Students        1,835
Standard Error            0.45%
95% Confidence Interval  (1.6% - 3.4%)
Design Effect              1.6 
 
QN37. Percentage of students who ever smoked cigarettes daily, that is, at least one cigarette
every day for 30 days
 
Percentage                 6.7%
Number of Students        1,815
Standard Error            0.79%
95% Confidence Interval  (5.3% - 8.5%)
Design Effect              1.8 
 
QN38. Among students who reported current cigarette use, the percentage who ever tried
to quit smoking cigarettes during the past 12 months
 
Percentage                47.9%
Number of Students          179
Standard Error            3.99%
95% Confidence Interval  (40.1% - 55.8%)
Design Effect              1.1 
 
QN39. Percentage of students who used chewing tobacco, snuff, or dip on one or more of
the past 30 days
 
Percentage                 7.7%
Number of Students        1,863
Standard Error            0.80%
95% Confidence Interval  (6.3% - 9.5%)
Design Effect              1.7 
 
QN40. Percentage of students who smoked cigars, cigarillos, or little cigars on one or
more of the past 30 days
 
Percentage                 8.3%
Number of Students        1,867
Standard Error            0.76%
95% Confidence Interval  (6.9% - 9.9%)
Design Effect              1.4 
 
QN41. Percentage of students who had at least one drink of alcohol on one or more days
during their life
 
Percentage                52.1%
Number of Students        1,746
Standard Error            1.59%
95% Confidence Interval  (48.9% - 55.2%)
Design Effect              1.8 
 
QN42. Percentage of students who had their first drink of alcohol other than a few sips
before age 13 years
 
Percentage                12.9%
Number of Students        1,783
Standard Error            0.97%
95% Confidence Interval  (11.0% - 14.9%)
Design Effect              1.5 
 
QN43. Percentage of students who had at least one drink of alcohol on one or more of the
past 30 days
 
Percentage                22.1%
Number of Students        1,664
Standard Error            1.46%
95% Confidence Interval  (19.3% - 25.1%)
Design Effect              2.0 
 
QN44. Percentage of students who had five or more drinks of alcohol in a row, that is,
within a couple of hours, on one or more of the past 30 days
 
Percentage                13.6%
Number of Students        1,750
Standard Error            1.22%
95% Confidence Interval  (11.3% - 16.2%)
Design Effect              2.2 
 
QN45. Percentage of students who had ten or more drinks of alcohol in a row, that is,
within a couple of hours, during the past 30 days
 
Percentage                 3.8%
Number of Students        1,675
Standard Error            0.71%
95% Confidence Interval  (2.6% - 5.5%)
Design Effect              2.3 
 
QN46. Among students who reported current alcohol use, the percentage who usually got
the alcohol they drank from someone who gave it to them during the past 30 days
 
Percentage                37.5%
Number of Students          355
Standard Error            2.22%
95% Confidence Interval  (33.2% - 42.0%)
Design Effect              0.7 
 
QN47. Percentage of students who used marijuana one or more times during their life
 
Percentage                23.6%
Number of Students        1,759
Standard Error            2.01%
95% Confidence Interval  (19.8% - 27.8%)
Design Effect              3.9 
 
QN48. Percentage of students who tried marijuana for the first time before age 13 years
 
Percentage                 5.5%
Number of Students        1,759
Standard Error            0.77%
95% Confidence Interval  (4.2% - 7.3%)
Design Effect              2.0 
 
QN49. Percentage of students who used marijuana one or more times during the past 30 days
 
Percentage                11.7%
Number of Students        1,770
Standard Error            1.10%
95% Confidence Interval  (9.6% - 14.0%)
Design Effect              2.1 
 
QN50. Percentage of students who used any form of cocaine, including powder, crack, or
freebase one or more times during their life
 
Percentage                 3.2%
Number of Students        1,770
Standard Error            0.52%
95% Confidence Interval  (2.3% - 4.4%)
Design Effect              1.5 
 
QN51. Percentage of students who sniffed glue, breathed the contents of aerosol spray
cans, or inhaled any paints or sprays to get high one or more times during their life
 
Percentage                 7.0%
Number of Students        1,757
Standard Error            0.73%
95% Confidence Interval  (5.7% - 8.6%)
Design Effect              1.4 
 
QN52. Percentage of students who used heroin one or more times during their life
 
Percentage                 1.2%
Number of Students        1,768
Standard Error            0.30%
95% Confidence Interval  (0.8% - 2.0%)
Design Effect              1.3 
 
QN53. Percentage of students who used methamphetamines one or more times during their life
 
Percentage                 2.0%
Number of Students        1,765
Standard Error            0.39%
95% Confidence Interval  (1.4% - 3.0%)
Design Effect              1.4 
 
QN54. Percentage of students who used ecstasy one or more times during their life
 
Percentage                 3.2%
Number of Students        1,760
Standard Error            0.52%
95% Confidence Interval  (2.4% - 4.5%)
Design Effect              1.5 
 
QN55. Percentage of students who took steroid pills or shots without a doctor's prescription
one or more times during their life
 
Percentage                 2.3%
Number of Students        1,773
Standard Error            0.41%
95% Confidence Interval  (1.6% - 3.3%)
Design Effect              1.3 
 
QN56. Percentage of students who have taken a prescription drug (such as OxyContin, Percocet,
Vicodin, codeine, Adderall, Ritalin, or Xanax) without a doctor's prescription one or
more times during their life
 
Percentage                10.4%
Number of Students        1,767
Standard Error            0.93%
95% Confidence Interval  (8.7% - 12.4%)
Design Effect              1.6 
 
QN57. Percentage of students who used a needle to inject any illegal drug into their body
one or more times during their life
 
Percentage                 1.9%
Number of Students        1,754
Standard Error            0.38%
95% Confidence Interval  (1.2% - 2.8%)
Design Effect              1.4 
 
QN58. Percentage of students who were offered, sold, or given an illegal drug by someone
on school property during the past 12 months
 
Percentage                19.2%
Number of Students        1,764
Standard Error            1.15%
95% Confidence Interval  (17.0% - 21.6%)
Design Effect              1.5 
 
QN59. Percentage of students who ever had sexual intercourse
 
Percentage                35.2%
Number of Students        1,604
Standard Error            1.90%
95% Confidence Interval  (31.6% - 39.1%)
Design Effect              2.5 
 
QN60. Percentage of students who had sexual intercourse for the first time before age 13 years
 
Percentage                 4.1%
Number of Students        1,599
Standard Error            0.62%
95% Confidence Interval  (3.0% - 5.6%)
Design Effect              1.6 
 
QN61. Percentage of students who had sexual intercourse with four or more people during their life
 
Percentage                 9.4%
Number of Students        1,600
Standard Error            0.91%
95% Confidence Interval  (7.7% - 11.4%)
Design Effect              1.6 
 
QN62. Percentage of students who had sexual intercourse with one or more people during
the past three months
 
Percentage                25.7%
Number of Students        1,601
Standard Error            1.73%
95% Confidence Interval  (22.4% - 29.3%)
Design Effect              2.5 
 
QN63. Among students who had sexual intercourse during the past three months, the percentage
who drank alcohol or used drugs before last sexual intercourse
 
Percentage                19.7%
Number of Students          359
Standard Error            2.56%
95% Confidence Interval  (15.1% - 25.3%)
Design Effect              1.5 
 
QN64. Among students who had sexual intercourse during the past three months, the percentage
who used a condom during last sexual intercourse
 
Percentage                62.5%
Number of Students          358
Standard Error            2.54%
95% Confidence Interval  (57.3% - 67.4%)
Design Effect              1.0 
 
QN65. Among students who had sexual intercourse during the past three months, the percentage
who used birth control pills to prevent pregnancy before last sexual intercourse
 
Percentage                16.4%
Number of Students          352
Standard Error            2.28%
95% Confidence Interval  (12.4% - 21.5%)
Design Effect              1.3 
 
QN66. Percentage of students who described themselves as slightly or very overweight
 
Percentage                27.0%
Number of Students        1,831
Standard Error            1.16%
95% Confidence Interval  (24.8% - 29.4%)
Design Effect              1.2 
 
QN67. Percentage of students who were trying to lose weight
 
Percentage                42.2%
Number of Students        1,835
Standard Error            1.15%
95% Confidence Interval  (39.9% - 44.5%)
Design Effect              1.0 
 
QN68. Percentage of students who went without eating for 24 hours or more to lose weight
or to keep from gaining weight during the past 30 days
 
Percentage                10.7%
Number of Students        1,815
Standard Error            1.00%
95% Confidence Interval  (8.8% - 12.8%)
Design Effect              1.9 
 
QN69. Percentage of students who took any diet pills, powders, or liquids without a doctor's
advice to lose weight or to keep from gaining weight during the past 30 days
 
Percentage                 4.5%
Number of Students        1,819
Standard Error            0.48%
95% Confidence Interval  (3.7% - 5.6%)
Design Effect              1.0 
 
QN70. Percentage of students who vomited or took laxatives to lose weight or to keep from
gaining weight during the past 30 days
 
Percentage                 3.6%
Number of Students        1,826
Standard Error            0.53%
95% Confidence Interval  (2.6% - 4.8%)
Design Effect              1.5 
 
QN71. Percentage of students who drank 100% fruit juices one or more times during the
past seven days
 
Percentage                74.3%
Number of Students        1,832
Standard Error            1.22%
95% Confidence Interval  (71.8% - 76.6%)
Design Effect              1.4 
 
QN72. Percentage of students who ate fruit one or more times during the past seven days
 
Percentage                91.9%
Number of Students        1,823
Standard Error            0.75%
95% Confidence Interval  (90.3% - 93.3%)
Design Effect              1.4 
 
QN73. Percentage of students who ate green salad one or more times during the past seven days
 
Percentage                61.4%
Number of Students        1,835
Standard Error            1.48%
95% Confidence Interval  (58.5% - 64.4%)
Design Effect              1.7 
 
QN74. Percentage of students who ate potatoes one or more times during the past seven days
 
Percentage                70.7%
Number of Students        1,833
Standard Error            1.45%
95% Confidence Interval  (67.7% - 73.5%)
Design Effect              1.8 
 
QN75. Percentage of students who ate carrots one or more times during the past seven days
 
Percentage                48.6%
Number of Students        1,819
Standard Error            1.68%
95% Confidence Interval  (45.3% - 51.9%)
Design Effect              2.1 
 
QN76. Percentage of students who ate other vegetables one or more times during the past seven days
 
Percentage                82.8%
Number of Students        1,830
Standard Error            1.02%
95% Confidence Interval  (80.7% - 84.7%)
Design Effect              1.3 
 
QN77. Percentage of students who drank a can, bottle, or glass of soda or pop one or more
times per day during the past seven days
 
Percentage                22.3%
Number of Students        1,822
Standard Error            1.09%
95% Confidence Interval  (20.3% - 24.6%)
Design Effect              1.2 
 
QN78. Percentage of students who drank three or more glasses per day of milk during the
past seven days
 
Percentage                13.0%
Number of Students        1,740
Standard Error            0.97%
95% Confidence Interval  (11.1% - 15.0%)
Design Effect              1.4 
 
QN79. Percentage of students who ate breakfast on all of the past seven days
 
Percentage                37.8%
Number of Students        1,718
Standard Error            1.39%
95% Confidence Interval  (35.0% - 40.6%)
Design Effect              1.4 
 
QN80. Percentage of students who were physically active for a total of at least 60 minutes
per day on five or more of the past seven days
 
Percentage                57.6%
Number of Students        1,810
Standard Error            1.74%
95% Confidence Interval  (54.1% - 61.0%)
Design Effect              2.2 
 
QN81. Percentage of students who watched three or more hours per day of TV on an average school day
 
Percentage                22.8%
Number of Students        1,793
Standard Error            1.32%
95% Confidence Interval  (20.2% - 25.5%)
Design Effect              1.8 
 
QN82. Percentage of students who played video or computer games or used a computer for
something that was not school work three or more hours per day on an average school day
 
Percentage                28.1%
Number of Students        1,803
Standard Error            1.43%
95% Confidence Interval  (25.3% - 31.0%)
Design Effect              1.8 
 
QN83. Percentage of students who attended physical education (PE) classes on one or more
days in an average week when they were in school
 
Percentage                49.6%
Number of Students        1,776
Standard Error            2.39%
95% Confidence Interval  (44.8% - 54.3%)
Design Effect              4.0 
 
QN84. Percentage of students who played on one or more sports teams during the past 12 months
 
Percentage                65.2%
Number of Students        1,792
Standard Error            1.58%
95% Confidence Interval  (62.0% - 68.3%)
Design Effect              2.0 
 
QN85. Percentage of students who had ever been taught in school about AIDS or HIV infection
 
Percentage                74.5%
Number of Students        1,718
Standard Error            1.84%
95% Confidence Interval  (70.6% - 78.0%)
Design Effect              3.1 
 
QN86. Percentage of students who had ever been told by a doctor or nurse that they had asthma
 
Percentage                16.9%
Number of Students        1,687
Standard Error            1.05%
95% Confidence Interval  (15.0% - 19.1%)
Design Effect              1.3 
 
QN87. Among students who drove a car or other vehicle during the past 30 days, the percentage
who talked on a cell phone while driving on one or more of the past 30 days
 
Percentage                54.4%
Number of Students        1,280
Standard Error            2.33%
95% Confidence Interval  (49.7% - 59.0%)
Design Effect              2.8 
 
QN88. Percentage of students who used chewing tobacco, snuff, or dip on school property
on one or more of the past 30 days
 
Percentage                 3.5%
Number of Students        1,870
Standard Error            0.57%
95% Confidence Interval  (2.5% - 4.8%)
Design Effect              1.8 
 
QN89. Among students who drank alcohol during the past 30 days and who have a usual type
of alcohol that they drink, the percentage who reported liquor, such as vodka, rum, scotch,
bourbon, or whisky, as their type of alcohol they usually drank during the past 30 days
 
Percentage                47.0%
Number of Students          351
Standard Error            2.98%
95% Confidence Interval  (41.1% - 53.0%)
Design Effect              1.3 
 
QN90. Among students who drank alcohol during the past 30 days, the percentage who reported
their home or another person's home as their usual place they usually drank alcohol during the past 30 days
 
Percentage                82.0%
Number of Students          410
Standard Error            2.64%
95% Confidence Interval  (76.2% - 86.7%)
Design Effect              1.9 
 
QN91. Percentage of students who drank a can, bottle, or glass of a sports drink such
as Gatorade or PowerAde one or more times per day during the past seven days
 
Percentage                15.9%
Number of Students        1,740
Standard Error            0.88%
95% Confidence Interval  (14.2% - 17.7%)
Design Effect              1.0 
 
QN92. Percentage of students who drank a can, bottle, or glass of a sugar-sweetened beverage
such as lemonade, sweetened tea or coffee drinks, flavored milk, Snapple, Sunny Delight,
or energy drinks such as Red Bull one or more times per day during the past seven days
 
Percentage                12.4%
Number of Students        1,745
Standard Error            0.77%
95% Confidence Interval  (10.9% - 14.0%)
Design Effect              1.0 
 
QN93. Percentage of students who did exercises to strengthen or tone their muscles, such
as push-ups, sit-ups, or weight lifting, on three or more of the past seven days
 
Percentage                58.8%
Number of Students        1,730
Standard Error            1.98%
95% Confidence Interval  (54.8% - 62.7%)
Design Effect              2.8 
 
QN94. Percentage of students who spend more than 20 minutes actually exercising or playing
sports during an average physical education (PE) class
 
Percentage                47.1%
Number of Students        1,724
Standard Error            2.42%
95% Confidence Interval  (42.4% - 52.0%)
Design Effect              4.1 
 
QN95. Percentage of students who last saw a dentist for a check-up, exam, teeth cleaning,
or other dental work during the past 12 months
 
Percentage                74.8%
Number of Students        1,721
Standard Error            1.48%
95% Confidence Interval  (71.8% - 77.6%)
Design Effect              2.0 
 
QN96. Percentage of students who used an indoor tanning device such as a sunlamp, sunbed,
or tanning booth one or more times during the past 12 months
 
Percentage                16.3%
Number of Students        1,721
Standard Error            1.26%
95% Confidence Interval  (13.9% - 19.0%)
Design Effect              2.0 
 
QN97. Percentage of students who have ever talked about AIDS or HIV infection with their
parents or other adults in their family
 
Percentage                38.2%
Number of Students        1,714
Standard Error            1.29%
95% Confidence Interval  (35.6% - 40.8%)
Design Effect              1.2