Transcript The Youth Risk Behavior Surveillance System: Trends and Uses

The Youth Risk Behavior
Surveillance System (YRBSS):
2003
National, State, and Local Data
Purposes of the YRBSS

Focus the nation on behaviors among youth
causing the most important health problems

Assess how risk behaviors change over time

Provide comparable data
Behaviors That Contribute to the Leading Causes of
Morbidity and Mortality

Behaviors that contribute to unintentional
injuries and violence

Tobacco use

Alcohol and other drug use

Sexual behaviors

Unhealthy dietary behaviors

Inadequate physical activity
Leading Causes of Death Among Persons Aged 10-24
Years in the U.S., 2001
Other
Unintentional
Injuries
12%
Motor Vehicle
Crashes
32%
Other Causes
29%
Homicide
15%
Suicide
12%
Leading Causes of Death Among Persons Aged 25
Years and Older in the U.S., 2001
Diabetes
COPD
3%
5%
Cardiovascular
Disease
39%
Cancer
24%
Other Causes
29%
Characteristics of the National, State,
and Local School-based YRBS

9th-12th grade students

Probability samples of schools and students

Anonymous

Self-administered computer-scannable
questionnaire

Completed in one class period (45 minutes)

Conducted biennially during the spring
Policy and Program Applications

Describe risk behaviors

Create awareness

Set program goals

Develop programs and policies

Support health-related legislation

Seek funding
Describe Risk Behaviors

Overall and among subgroups of youth

How risk behaviors are interrelated
Create Awareness
Among:
 Legislators, boards of education, and school
administrators
 Parents
 Community members
 School staff
 Students
 Media
2003 YRBS Results
Percentage of High School Students Who Rarely or
Never Wore Seat Belts,* 1991 - 2003
100
Percent
80
60
40
25.9
19.1
21.7
19.3
20
1
16.4
14.1
18.2
0
1991
1993
1995
1997
* When riding in a car driven by someone else
1 Significant linear decrease, p < .05
National Youth Risk Behavior Surveys, 1991 - 2003
1999
2001
2003
Percentage of High School Students Who Rode with a
Driver Who Had Been Drinking Alcohol,* 1991 - 2003
100
Percent
80
60
39.9
40
35.3
38.8
36.6
33.1
1
30.7
30.2
2001
2003
20
0
1991
1993
1995
1997
1999
* In a car or other vehicle one or more times during the 30 days preceding the survey
1 Significant linear decrease, p < .05
National Youth Risk Behavior Surveys, 1991 - 2003
Percentage of High School Students Who Drove After
Drinking Alcohol,* 1991 - 2003
100
Percent
80
60
40
20
16.7
13.5
15.4
16.9
1993
1995
1997
1
13.1
13.3
12.1
1999
2001
2003
0
1991
* In a car or other vehicle one or more times during the 30 days preceding the survey
1 Significant linear decrease, p < .05
National Youth Risk Behavior Surveys, 1991 - 2003
Percentage of High School Students Who Carried a
Gun,* 1993 - 2003
100
Percent
80
60
40
20
7.9
7.6
5.9
4.9
5.7
6.11
1993
1995
1997
1999
2001
2003
0
* On > 1 of the 30 days preceding the survey
1 Significant linear decrease and quadratic effect, p < .05
National Youth Risk Behavior Surveys, 1993 - 2003
Percentage of High School Students Who Were in a
Physical Fight,* 1991 - 2003
100
Percent
80
60
42.5
41.8
38.7
40
36.6
35.7
1997
1999
33.2
33.01
2001
2003
20
0
1991
1993
1995
* One or more times during the 12 months preceding the survey
1 Significant linear decrease, p < .05
National Youth Risk Behavior Surveys, 1991 - 2003
Percentage of High School Students Who Experienced
Dating Violence,* 1999 - 2003
100
Percent
80
60
40
20
8.8
9.5
8.91
1999
2001
2003
0
* Hit, slapped, or physically hurt on purpose by a boyfriend or girlfriend during the 12 months preceding the survey
1 No change over time
National Youth Risk Behavior Surveys, 1991 - 2003
Percentage of High School Students Who Felt Sad or
Hopeless,* 1999 - 2003
100
Percent
80
60
40
28.3
28.3
28.61
1999
2001
2003
20
0
* Felt so sad or hopeless almost every day for > 2 weeks in a row that they stopped doing some usual activities
during the 12 months preceding the survey
1 No change over time
National Youth Risk Behavior Surveys, 1999 – 2003
Percentage of High School Students Who Seriously
Considered Attempting Suicide,* 1991 - 2003
100
Percent
80
60
40
29.0
24.1
24.1
20.5
19.3
19.0
16.91
1997
1999
2001
2003
20
0
1991
1993
1995
* During the 12 months preceding the survey
1 Significant linear decrease and quadratic effect, p < .05
National Youth Risk Behavior Surveys, 1991 - 2003
Percentage of High School Students Who Actually
Attempted Suicide,* 1991 - 2003
100
Percent
80
60
40
20
1
7.3
8.6
8.7
7.7
8.3
8.8
8.5
1991
1993
1995
1997
1999
2001
2003
0
* One or more times during the 12 months preceding the survey
1 No change over time
National Youth Risk Behavior Surveys, 1991 - 2003
Percentage of High School Students Who Reported
Lifetime Cigarette Use,* 1991 - 2003
100
80
70.1
69.5
71.3
70.2
70.4
63.9
1
Percent
58.4
60
40
20
0
1991
1993
1995
1997
* Ever tried cigarette smoking, even one or two puffs
1 Significant linear decrease and quadratic effect, p < .05
National Youth Risk Behavior Surveys, 1991 - 2003
1999
2001
2003
Percentage of High School Students Who Reported
Current Cigarette Use,* 1991 - 2003
100
Percent
80
60
40
27.5
30.5
34.8
36.4
34.8
28.5
1
21.9
20
0
1991
1993
1995
1997
* Smoked cigarettes on > 1 of the 30 days preceding the survey
1 Significant linear decrease and quadratic effect, p < .05
National Youth Risk Behavior Surveys, 1991 - 2003
1999
2001
2003
Percentage of High School Students Who Reported
Lifetime Alcohol Use,* 1991 - 2003
100
81.6
80.9
80.4
79.1
81.0
1997
1999
78.2
Percent
80
1
74.9
60
40
20
0
1991
1993
1995
* Ever had > 1 drinks of alcohol on ≥ 1 days
1 Significant linear decrease, p < .05
National Youth Risk Behavior Surveys, 1991 - 2003
2001
2003
Percentage of High School Students Who Reported
Current Alcohol Use,* 1991 - 2003
100
Percent
80
60
50.8
48.0
51.6
50.8
50.0
1997
1999
47.1
44.91
2001
2003
40
20
0
1991
1993
1995
* Drank ≥ 1 drinks of alcohol on  1 of the 30 days preceding the survey
1 Significant linear decrease and quadratic effect, p < .05
National Youth Risk Behavior Surveys, 1991 - 2003
Percentage of High School Students Who Reported
Lifetime Marijuana Use,* 1991 - 2003
100
Percent
80
60
42.4
40
31.3
32.8
1991
1993
47.1
47.2
42.4
40.21
2001
2003
20
0
1995
1997
* Used marijuana ≥ 1 times during their lifetime
1 Significant linear increase and quadratic effect, p < .05
National Youth Risk Behavior Surveys, 1991 - 2003
1999
Percentage of High School Students Who Reported
Current Marijuana Use,* 1991 - 2003
100
Percent
80
60
40
20
14.7
25.3
26.2
26.7
1995
1997
1999
23.9
22.4
2001
2003
17.7
1
0
1991
1993
* Used marijuana  1 times during the 30 days preceding the survey
1 Significant linear increase and quadratic effect, p < .05
National Youth Risk Behavior Surveys, 1991 - 2003
Percentage of High School Students Who Reported
Lifetime Cocaine Use,* 1991 - 2003
100
Percent
80
60
40
20
5.9
4.9
7.0
1991
1993
1995
8.2
9.5
9.4
8.71
1997
1999
2001
2003
0
* Used any form of cocaine (e.g., powder, “crack,” or “freebase”) ≥ 1 times during their lifetime
1 Significant linear increase and quadratic effect, p < .05
National Youth Risk Behavior Surveys, 1991 - 2003
Percentage of High School Students Who Reported
Lifetime Methamphetamine Use,* 1999 - 2003
100
Percent
80
60
40
20
9.1
9.8
1999
2001
7.6 1
0
2003
* Used methamphetamines (also called “speed,” “crystal,” “crank,” or “ice”) ≥ 1 times during their lifetime
1 No change over time
National Youth Risk Behavior Surveys, 1995 - 2003
Percentage of High School Students Who Reported
Lifetime Illegal Steroid Use,* 1991 - 2003
100
Percent
80
60
40
20
2.7
2.2
3.7
3.1
3.7
5.0
1991
1993
1995
1997
1999
2001
1
6.1
2003
0
* Took steroid pills or shots without a doctor’s prescription ≥ 1 times during their lifetime
1 Significant linear increase, p < .05
National Youth Risk Behavior Surveys, 1991 - 2003
Percentage of High School Students Who Used Marijuana
on School Property,* 1993 - 2003
100
Percent
80
60
40
20
5.6
8.8
7.0
7.2
5.4
5.81
1995
1997
1999
2001
2003
0
1993
* Used marijuana > 1 times during the 30 days preceding the survey
1 Significant quadratic effect, p < .05
National Youth Risk Behavior Surveys, 1993 - 2003
Percentage of High School Students Who Were
Offered, Sold, or Given an Illegal Drug on School Property,*
1993 - 2003
100
Percent
80
60
40
32.1
31.7
30.2
28.5
28.71
1995
1997
1999
2001
2003
24.0
20
0
1993
* During the 12 months preceding the survey
1 Significant quadratic effect, p < .05
National Youth Risk Behavior Surveys, 1993 - 2003
Impact of Sexual Behaviors

870,000 pregnancies occur each year among
15-19 year olds

490,000 live births occur each year to teen
mothers aged 15-19 years

3 million sexually transmitted diseases occur
each year among 13-19 year olds
Percentage of High School Students Who Ever Had
Sexual Intercourse, 1991 - 2003
100
Percent
80
60
54.1
53.0
53.1
48.4
49.9
1997
1999
1
45.6
46.7
2001
2003
40
20
0
1991
1 Significant
1993
1995
linear decrease, p < .05
National Youth Risk Behavior Surveys, 1991 - 2003
Percentage of High School Students Who Had First Sexual
Intercourse Before Age 13 Years, 1991 - 2003
100
Percent
80
60
40
20
10.2
9.2
8.9
7.2
8.3
6.6
7.4
1991
1993
1995
1997
1999
2001
2003
1
0
1 Significant
linear decrease, p < .05
National Youth Risk Behavior Surveys, 1991 - 2003
Percentage of High School Students Who Had  4 Sex
Partners During Their Lifetime, 1991 - 2003
100
Percent
80
60
40
18.7
18.7
17.8
16.0
16.2
14.2
14.4
1991
1993
1995
1997
1999
2001
2003
20
1
0
1 Significant
linear decrease, p < .05
National Youth Risk Behavior Surveys, 1991 - 2003
Percentage of High School Students Who Were Currently
Sexually Active,* 1991 - 2003
100
Percent
80
60
40
37.5
37.5
37.9
1991
1993
1995
34.8
36.3
1997
1999
1
33.4
34.3
2001
2003
20
0
* Sexual intercourse during the 3 months preceding the survey
1 No change over time
National Youth Risk Behavior Surveys, 1991 - 2003
Percentage of High School Students Who Used a Condom
During Last Sexual Intercourse,* 1991 - 2003
100
80
1
Percent
63.0
60
52.8
54.4
1993
1995
56.8
58.0
57.9
1997
1999
2001
46.2
40
20
0
1991
* Among currently sexually active students
1 Significant linear increase, p < .05
National Youth Risk Behavior Surveys, 1991 - 2003
2003
Percentage of High School Students Who Used Birth
Control Pills Before Last Sexual Intercourse,* 1991 - 2003
100
Percent
80
60
40
20.8
18.4
17.4
16.6
16.2
18.2
17.01
1993
1995
1997
1999
2001
2003
20
0
1991
* Among currently sexually active students
1 Significant quadratic effect, p < .05
National Youth Risk Behavior Surveys, 1991 - 2003
Percentage of High School Students Who Used Alcohol or
Drugs Before Last Sexual Intercourse,* 1991 - 2003
100
Percent
80
60
40
21.6
21.3
1991
1993
24.8
24.7
24.8
25.6
25.41
1995
1997
1999
2001
2003
20
0
* Among currently sexually active students
1 Significant linear increase, p < .05
National Youth Risk Behavior Surveys, 1991 - 2003
Percentage of High School Students Who Were Taught in
School about AIDS/HIV, 1991 - 2003
100
83.3
86.1
86.3
1993
1995
91.5
90.6
89.0
87.91
1997
1999
2001
2003
Percent
80
60
40
20
0
1991
1 Significant
linear increase and quadratic effect, p < .05
National Youth Risk Behavior Surveys, 1991 - 2003
Percentage of High School Students Who Were At Risk For
Becoming Overweight*, 1999 - 2003
100
Percent
80
60
40
20
1
14.3
13.6
15.4
1999
2001
2003
0
* Students who were > 85th percentile but < 95th percentile for body mass index, by age and sex, based on reference data
1 No change over time
National Youth Risk Behavior Surveys, 1999 - 2003
Percentage of High School Students Who Were
Overweight*, 1999 - 2003
100
Percent
80
60
40
20
1
10.8
10.5
1999
2001
13.5
0
* Students who were > 95th percentile for body mass index, by age and sex, based on reference data
1 No change over time
National Youth Risk Behavior Surveys, 1999 - 2003
2003
Percentage of High School Students Who Described
Themselves as Overweight, 1991 - 2003
100
Percent
80
60
40
31.8
34.3
27.6
27.3
1995
1997
1
30.0
29.2
29.6
1999
2001
2003
20
0
1991
1 Significant
1993
linear decrease and quadratic effect, p < .05
National Youth Risk Behavior Surveys, 1991 - 2003
Percentage of High School Students Who Were Trying To
Lose Weight, 1991 - 2003
100
Percent
80
60
41.8
40.3
41.4
39.7
1991
1993
1995
1997
42.7
46.0
1
43.8
40
20
0
1 Significant
linear increase, p < .05
National Youth Risk Behavior Surveys, 1991 - 2003
1999
2001
2003
Percentage of High School Students Who Ate Fruits and
Vegetables ≥ 5 times Per Day,* 1999 - 2003
100
Percent
80
60
40
23.9
1
21.4
22.0
2001
2003
20
0
1999
* Had consumed 100% fruit juice, fruit, green salad, potatoes (excluding French fries, fried potatoes, or potato chips),
carrots, or other vegetables ≥ 5 times per day during the 7 days preceding the survey
1 No change over time
National Youth Risk Behavior Surveys, 1999 – 2003
Percentage of High School Students Who Had Drunk > 3
Glasses Per Day of Milk,* 1999 - 2003
100
Percent
80
60
40
20
18.0
16.4
17.11
1999
2001
2003
0
* Had drunk > 3 glasses of milk per day during the 7 days preceding the survey
1 No change over time
National Youth Risk Behavior Surveys, 1999 – 2003
Percentage of High School Students Who Exercised to
Lose Weight or to Keep From Gaining Weight,* 1995 - 2003
100
Percent
80
60
51.0
51.5
1995
1997
58.4
59.9
1999
2001
1
57.1
40
20
0
* During the 30 days preceding the survey
1 Significant linear increase and quadratic effect, p < .05
National Youth Risk Behavior Surveys, 1995 - 2003
2003
Percentage of High School Students Who Went Without
Eating for > 24 Hours to Lose Weight or to Keep From
Gaining Weight,* 1999 - 2003
100
Percent
80
60
40
20
1
12.6
13.5
13.3
1999
2001
2003
0
* During the 30 days preceding the survey
1 No change over time
National Youth Risk Behavior Surveys, 1999 – 2003
Percentage of High School Students Who Took Diet Pills,
Powders, or Liquids to Lose Weight or to Keep From
Gaining Weight,* 1999 - 2003
100
Percent
80
60
40
20
7.6
9.2
9.21
1999
2001
2003
0
* Without a doctor’s advice during the 30 days preceding the survey
1 No change over time
National Youth Risk Behavior Surveys, 1999 – 2003
Percentage of High School Students Who Participated in
Sufficient Vigorous Physical Activity,* 1993 - 2003
100
Percent
80
65.8
63.7
63.8
64.7
64.6
62.6
1993
1995
1997
1999
2001
2003
1
60
40
20
0
* Exercised or participated in physical activities that made students sweat and breathe hard for > 20 minutes on > 3
of the 7 days preceding the survey
1 No change over time
National Youth Risk Behavior Surveys, 1993 - 2003
Percentage of High School Students Who Were Enrolled in
Physical Education Class*, 1991 - 2003
100
80
Percent
59.6
60
48.9
52.1
56.1
48.8
51.7
55.71
40
20
0
1991
1993
1995
1997
* On ≥ 1 days in an average week when they were in school
1 No change over time
National Youth Risk Behavior Surveys, 1991 - 2003
1999
2001
2003
Percentage of High School Students Who Attended
Physical Education Class Daily*, 1991 - 2003
100
Percent
80
60
41.6
34.3
40
25.4
27.4
29.1
1995
1997
1999
32.2
28.41
20
0
1991
1993
* 5 days in an average week when they were in school
1 Significant linear decrease and quadratic effect, p < .05
National Youth Risk Behavior Surveys, 1991 - 2003
2001
2003
Percentage of High School Students Who Played on > 1
Sports Teams,* 1999 - 2003
100
80
Percent
1
60
55.1
55.2
1999
2001
57.6
40
20
0
* Run by their school or community groups during the 12 months preceding the survey
1 No change over time
National Youth Risk Behavior Surveys, 1999 - 2003
2003
Percentage of High School Students Who Watched > 3
Hours Per Day of Television,* 1999 - 2003
100
Percent
80
60
42.8
1
38.3
38.2
2001
2003
40
20
0
1999
* On an average school day
1 Significant linear decrease, p < .05
National Youth Risk Behavior Surveys, 1999 - 2003