# Presentation: 136982

## The Youth Risk Behavior Surveillance System (YRBSS):2007

- National, State, and Local Data

## 2007 YRBS ResultsObesity and Weight Control Practices

**Notes:**
The following slides highlight the 2007 YRBS results for obesity and weight control practices.

## Percentage of High School Students Who Were Obese,* by Sex** and Race/Ethnicity,*** 2007

- * Students who were _>_ 95th percentile for body mass index, by age and sex, based on reference data.
- ** M > F*** B, H > W

*National Youth Risk Behavior Survey, 2007*

**Notes:**
Nationwide in 2007, 13.0% of high school students were obese.  Overall, the prevalence of being obese was higher among male than female students and higher among black and Hispanic than white students.  Previous Youth Risk Behavior Survey reports used the term “overweight” to describe youth with a BMI ≥ 95th percentile for age and sex.  However, this report uses the term “obese” in accordance with the 2007 recommendations from the Expert Committee on the Assessment, Prevention, and Treatment of Child and Adolescent Overweight and Obesity convened by the American Medical Association (AMA) and co-funded by AMA in collaboration with the Health Resources and Services Administration and CDC.

## Percentage of High School Students Who Were Obese,* 1999 – 2007

*National Youth Risk Behavior Surveys, 1999 – 2007*

- * Students who were _>_ 95th percentile for body mass index, by age and sex, based on reference data.
- 1 Increased 1999-2007, p < .05

**Notes:**
This slide shows the percentage of high school students over time who were obese.  During 1999 to 2007, a significant linear increase was identified. Previous Youth Risk Behavior Survey reports used the term “overweight” to describe youth with a BMI ≥ 95th percentile for age and sex.  However, this report uses the term “obese” in accordance with the 2007 recommendations from the Expert Committee on the Assessment, Prevention, and Treatment of Child and Adolescent Overweight and Obesity convened by the American Medical Association (AMA) and co-funded by AMA in collaboration with the Health Resources and Services Administration and CDC.

## Range and Median Percentage of High School Students Who Were Obese,* Across 39 States and 22 Cities, 2007

- * Students who were _>_ 95th percentile for body mass index, by age and sex, based on reference data.

*State and Local Youth Risk Behavior Surveys, 2007*

**Notes:**
This slide shows the range and median percentage of high school students across 39 states and 22 cities in 2007 who were obese.  Prevalence ranged from 8.7% to 17.9% across state surveys (median: 12.0) and from 8.4% to 19.3% across local surveys (median: 14.8%). Previous Youth Risk Behavior Survey reports used the term “overweight” to describe youth with a BMI ≥ 95th percentile for age and sex.  However, this report uses the term “obese” in accordance with the 2007 recommendations from the Expert Committee on the Assessment, Prevention, and Treatment of Child and Adolescent Overweight and Obesity convened by the American Medical Association (AMA) and co-funded by AMA in collaboration with the Health Resources and Services Administration and CDC.

## Percentage of High School Students Who Were  Overweight,* by Sex and Race/Ethnicity,** 2007

- * Students who were _>_ 85th percentile but < 95th percentile for body mass index, by age and sex, based on reference data.
- ** B, H > W

*National Youth Risk Behavior Survey, 2007*

**Notes:**
Nationwide in 2007, 15.8% of high school students were overweight.  The prevalence of being overweight was higher among black and Hispanic than white students. Previous Youth Risk Behavior Survey reports used the term “at risk for overweight” to describe youth with a BMI ≥ 85th percentile and < 95th percentile for age and sex.  However, this report uses the term “overweight” in accordance with the 2007 recommendations from the Expert Committee on the Assessment, Prevention, and Treatment of Child and Adolescent Overweight and Obesity convened by the American Medical Association (AMA) and co-funded by AMA in collaboration with the Health Resources and Services Administration and CDC.

## Percentage of High School Students Who Were Overweight,* 1999 – 2007

*National Youth Risk Behavior Surveys, 1999 – 2007*

- * Students who were _>_ 85th percentile but < 95th percentile for body mass index, by age and sex, based on reference data.
- 1 Increased 1999-2007, p < .05

**Notes:**
This slide shows the percentage of high school students over time who were overweight.  During 1999 to 2007, a significant linear increase was identified. Previous Youth Risk Behavior Survey reports used the term “at risk for overweight” to describe youth with a BMI ≥ 85th percentile and < 95th percentile for age and sex.  However, this report uses the term “overweight” in accordance with the 2007 recommendations from the Expert Committee on the Assessment, Prevention, and Treatment of Child and Adolescent Overweight and Obesity convened by the American Medical Association (AMA) and co-funded by AMA in collaboration with the Health Resources and Services Administration and CDC.

## Range and Median Percentage of High School Students Who Were Overweight,* Across 39 States and 22 Cities, 2007

- * Students who were _>_ 85th percentile but < 95th percentile for body mass index, by age and sex, based on reference data.

*State and Local Youth Risk Behavior Surveys, 2007*

**Notes:**
This slide shows the range and median percentage of high school students across 39 states and 22 cities in 2007 who were overweight.  Prevalence ranged from 11.4% to 18.2% across state surveys (median: 15.0%) and from 12.5% to 22.2% across local surveys (median: 17.7%).  Previous Youth Risk Behavior Survey reports used the term “at risk for overweight” to describe youth with a BMI ≥ 85th percentile and < 95th percentile for age and sex.  However, this report uses the term “overweight” in accordance with the 2007 recommendations from the Expert Committee on the Assessment, Prevention, and Treatment of Child and Adolescent Overweight and Obesity convened by the American Medical Association (AMA) and co-funded by AMA in collaboration with the Health Resources and Services Administration and CDC.

## Percentage of High School Students Who Described Themselves as Slightly or Very Overweight, by Sex* and Race/Ethnicity,** 2007

- * F > M** H > W > B

*National Youth Risk Behavior Survey, 2007*

**Notes:**
Nationwide in 2007, 29.3% of high school students described themselves as slightly or very overweight.  Overall, the prevalence of describing themselves as overweight was higher among female than male students, higher among white than black students, and higher among Hispanic than white and black students.

## Percentage of High School Students Who Described Themselves as Slightly or Very Overweight, 1991 – 2007

*National Youth Risk Behavior Surveys, 1991 – 2007*

- 1 Decreased 1991-1997, increased 1997-2007, p < .05

**Notes:**
This slide shows the percentage of high school students over time who described themselves as slightly or very overweight.  During 1991 to 2007, a significant linear decrease and a significant quadratic change were identified.

## Range and Median Percentage of High School Students Who Described Themselves as Slightly or Very Overweight, Across 35 States and 21 Cities, 2007

*State and Local Youth Risk Behavior Surveys, 2007*

**Notes:**
This slide shows the range and median percentage of high school students across 35 states and 21 cities in 2007 who described themselves as slightly or very overweight.  Prevalence ranged from 22.7% to 32.7% across state surveys (median: 29.1%) and from 23.1% to 34.5% across local surveys (median: 26.8%).

## Percentage of High School Students Who Were Trying To Lose Weight, by Sex* and Race/Ethnicity,** 2007

- * F > M
- ** H > W > B

*National Youth Risk Behavior Survey, 2007*

**Notes:**
Nationwide in 2007, 45.2% of high school students were trying to lose weight.  Overall, the prevalence of trying to lose weight was higher among female than male students, higher among white than black students, and higher among Hispanic than white and black students.

## Percentage of High School Students Who Were Trying To Lose Weight, 1991 – 2007

*National Youth Risk Behavior Surveys, 1991 – 2007*

- 1 Increased 1991-2007, p < .05

**Notes:**
This slide shows the percentage of high school students over time who were trying to lose weight.  During 1991 to 2007, a significant linear increase was identified.

## Range and Median Percentage of High School Students Who Were Trying To Lose Weight, Across 36 States and 21 Cities, 2007

**Range and Median Percentage of High School Students Who Were Trying To Lose Weight, ****Across 36 States and 21 Cities, 2007**

*State and Local Youth Risk Behavior Surveys, 2007*

**Notes:**
This slide shows the range and median percentage of high school students across 36 states and 21 cities in 2007 who were trying to lose weight.  Prevalence ranged from 37.9% to 48.7% across state surveys (median: 45.0%) and from 38.1% to 53.1% across local surveys (median: 43.1%).

## Percentage of High School Students Who Ate Less Food, Fewer Calories, or Low-Fat Foods to Lose Weight or to Keep From Gaining Weight,* by Sex** and Race/Ethnicity,*** 2007

- * During the 30 days before the survey.
- ** F > M*** W, H > B

*National Youth Risk Behavior Survey, 2007*

**Notes:**
Nationwide in 2007, 40.6% of high school students had eaten less food, fewer calories, or low-fat foods to lose weight or to keep from gaining weight during the 30 days before the survey.  Overall, the prevalence of having eaten less food, fewer calories, or low-fat foods to lose weight or to keep from gaining weight was higher among female than male students and higher among white and Hispanic than black students.

## Percentage of High School Students Who Ate Less Food, Fewer Calories, or Low-Fat Foods to Lose Weight or to Keep From Gaining Weight,* 1999 – 2007

*National Youth Risk Behavior Surveys, 1999 – 2007 *

- * During the 30 days before the survey.
- 1 Increased 1999-2001, decreased 2001-2007, p < .05

**Notes:**
This slide shows the percentage of high school students over time who ate less food, fewer calories, or low-fat foods to lose weight or to keep from gaining weight during the 30 days before the survey. During 1999 to 2007, a significant quadratic change was identified.

## Range and Median Percentage of High School Students Who Ate Less Food, Fewer Calories, or Low-Fat Foods to Lose Weight or to Keep From Gaining Weight,* Across 35 States and 19 Cities, 2007

- * During the 30 days before the survey.

*State and Local Youth Risk Behavior Surveys, 2007*

**Notes:**
This slide shows the range and median percentage of high school students across 35 states and 19 cities in 2007 who ate less food, fewer calories, or low-fat foods to lose weight or to keep from gaining weight during the 30 days before the survey.  Prevalence ranged from 35.1% to 43.7% across state surveys (median: 39.1%) and from 30.6% to 41.3% across local surveys (median: 35.9%).

## Percentage of High School Students Who Exercised to Lose Weight or to Keep From Gaining Weight,* by Sex** and Race/Ethnicity,*** 2007

- * During the 30 days before the survey.
- ** F > M*** W, H > B

*National Youth Risk Behavior Survey, 2007*

**Notes:**
Nationwide in 2007, 60.9% of high school students had exercised to lose weight or to keep from gaining weight during the 30 days before the survey.  Overall, the prevalence of having exercised to lose weight or to keep from gaining weight was higher among female than male students, higher among white and Hispanic than black students.

## Percentage of High School Students Who Exercised to Lose Weight or to Keep From Gaining Weight,* 1995 – 2007

*National Youth Risk Behavior Surveys, 1995 – 2007*

- * During the 30 days before the survey.
- 1 Increased 1995-2007, p < .05

**Notes:**
This slide shows the percentage of high school students over time who exercised to lose weight or to keep from gaining weight during the 30 days before the survey. During 1995 to 2007, a significant linear increase and a significant quadratic change were identified.

## Range and Median Percentage of High School Students Who Exercised to Lose Weight or to Keep From Gaining Weight,* Across 35 States and 19 Cities, 2007

**Range and Median Percentage of High School Students Who Exercised to Lose Weight or to Keep From Gaining Weight,* Across 35 States and 19 Cities, 2007**

- * During the 30 days before the survey.

*State and Local Youth Risk Behavior Surveys, 2007*

**0**

**Notes:**
This slide shows the range and median percentage of high school students across 35 states and 19 cities in 2007 who had exercised to lose weight or to keep from gaining weight during the 30 days before the survey.  Prevalence ranged from 56.8% to 65.4% across state surveys (median: 61.1%) and from 50.5% to 69.3% across local surveys (median: 58.4%).

## Percentage of High School Students Who Did Not Eat for 24 or More Hours to Lose Weight or to Keep From Gaining Weight,* by Sex** and Race/Ethnicity,*** 2007

- * During the 30 days before the survey.
- ** F > M
- *** H > W, B

*National Youth Risk Behavior Survey, 2007*

**Notes:**
Nationwide in 2007, 11.8% of high school students did not eat for 24 or more hours to lose weight or to keep from gaining weight during the 30 days before the survey.  Overall, the prevalence of not eating for 24 or more hours to lose weight or to keep from gaining weight was higher among female than male students and higher among Hispanic than white and black students.

## Percentage of High School Students Who Did Not Eat for 24 or More Hours to Lose Weight or to Keep From Gaining Weight,* 1999 – 2007

*National Youth Risk Behavior Surveys, 1999 – 2007 *

- * During the 30 days before the survey.
- 1 No significant change over time

**Notes:**
This slide shows the percentage of high school students over time who did not eat for 24 or more hours to lose weight or to keep from gaining weight during the 30 days before the survey.  During 1999 to 2007, no significant change was identified.

## Range and Median Percentage of High School Students Who Did Not Eat for 24 or More Hours to Lose Weight or to Keep From Gaining Weight,* Across 33 States and 18 Cities, 2007

- * During the 30 days before the survey.

*State and Local Youth Risk Behavior Surveys, 2007*

**Notes:**
This slide shows the range and median percentage of high school students across 33 states and 18 cities in 2007 who did not eat for 24 or more hours to lose weight or to keep from gaining weight during the 30 days before the survey.  Prevalence ranged from 9.7% to 14.3% across state surveys (median: 12.0%) and from 8.9% to 14.0% across local surveys (median: 11.9%).

## Percentage of High School Students Who Took Diet Pills, Powders, or Liquids to Lose Weight or to Keep From Gaining Weight,* by Sex** and Race/Ethnicity,*** 2007

- * Without a doctor’s advice during the 30 days before the survey.
- ** F > M*** W , H > B

*National Youth Risk Behavior Survey, 2007*

**Notes:**
Nationwide in 2007, 5.9% of high school students nationwide had taken diet pills, powders, or liquids without a doctor’s advice to lose weight or to keep from gaining weight during the 30 days before the survey.  Overall, the prevalence of having taken diet pills, powders, or liquids without a doctor’s advice to lose weight or to keep from gaining weight was higher among female than male students and higher among white and Hispanic than black students.

## Percentage of High School Students Who Took Diet Pills, Powders, or Liquids to Lose Weight or to Keep From Gaining Weight,* 1999 – 2007

*National Youth Risk Behavior Surveys, 1999 – 2007 *

- * Without a doctor’s advice during the 30 days before the survey.
- 1 Increased 1999-2001, decreased 2001-2007, p < .05

**Notes:**
This slide shows the percentage of high school students over time who had taken diet pills, powders, or liquids without a doctor’s advice to lose weight or to keep from gaining weight during the 30 days before the survey. During 1999 to 2007, a significant linear decrease and a significant quadratic change were identified.

## Range and Median Percentage of High School Students Who Took Diet Pills, Powders, or Liquids to Lose Weight or to Keep From Gaining Weight,* Across 34 States and 19 Cities, 2007

- * Without a doctor’s advice during the 30 days before the survey.

*State and Local Youth Risk Behavior Surveys, 2007*

**Notes:**
This slide shows the range and median percentage of high school students across 34 states and 19 cities in 2007 who had taken diet pills, powders, or liquids without a doctor’s advice to lose weight or to keep from gaining weight during the 30 days before the survey.  Prevalence ranged from 3.9% to 8.6% across state surveys (median: 6.7%) and from 3.3% to 10.3% across local surveys (median: 5.4%).

## Percentage of High School Students Who Vomited or Took Laxatives to Lose Weight or to Keep From Gaining Weight,* by Sex** and Race/Ethnicity,*** 2007

- * During the 30 days before the survey.
- ** F > M*** H > B

*National Youth Risk Behavior Survey, 2007*

**Notes:**
Nationwide in 2007, 4.3% of high school students had vomited or taken laxatives to lose weight or to keep from gaining weight during the 30 days before the survey.  Overall, the prevalence of having vomited or taken laxatives to lose weight or to keep from gaining weight was higher among female than male students and higher among Hispanic than black students.

## Percentage of High School Students Who Vomited or Took Laxatives to Lose Weight or to Keep From Gaining Weight,* 1995 – 2007

*National Youth Risk Behavior Surveys, 1995 – 2007*

- * During the 30 days before the survey.
- 1 No change 1995-2003, decreased 2003-2007, p < .05

**Notes:**
This slide shows the percentage of high school students over time who vomited or took laxatives to lose weight or to keep from gaining weight during the 30 days before the survey.  During 1995 to 2007, a significant quadratic change was identified.

## Range and Median Percentage of High School Students Who Vomited or Took Laxatives to Lose Weight or to Keep From Gaining Weight,* Across 36 States and 20 Cities, 2007

- * During the 30 days before the survey.

*State and Local Youth Risk Behavior Surveys, 2007*

**Notes:**
This slide shows the range and median percentage of high school students across 36 states and 20 cities in 2007 who had vomited or taken laxatives to lose weight or to keep from gaining weight during the 30 days before the survey.  Prevalence ranged from 3.6% to 7.9% across state surveys (median: 5.4%) and from 2.4% to 9.0% across local surveys (median: 5.2%).

## The Youth Risk Behavior Surveillance System (YRBSS):2007

- National, State, and Local Data