2001 US National Responses Attempted Weight Control « Survey Intro and Options

Nationwide, 59.9% of students had exercised to lose weight or to avoid gaining weight during the 30 days preceding the survey.

Overall, female students (68.4%) were significantly more likely than male students (51%) to have exercised to lose weight or to avoid gaining weight. This significant sex difference was identified for white and Hispanic students and students in all the grade subpopulations.

Overall, white and Hispanic students (61.9% and 61.5%, respectively) were significantly more likely than black students (50.1%) to have exercised to lose weight or to avoid gaining weight. This significant racial/ethnic difference was identified for female students. White female students (72.5%) were significantly more likely than Hispanic female students (66.2%) to have exercised to lose weight or to avoid gaining weight, and Hispanic male students (56.8%) were significantly more likely than white and black male students (50.9% and 46.6%, respectively) to report this behavior.

Overall, students in grade 9 (64.2%) were significantly more likely than students in grades 11 and 12 (56.3% and 57.2%, respectively) to have exercised to lose weight or to avoid gaining weight. Prevalence ranged from 53.2% to 64.5% (median: 59.3%) across state surveys and from 45.1% to 66.3% (median: 54.6%) across local surveys.

Nationwide, 43.8% of students had eaten less food, fewer calories, or foods low in fat to lose weight or to avoid gaining weight during the 30 days preceding the survey.

Overall, female students (58.6%) were significantly more likely than male students (28.2%) to have eaten less food, fewer calories, or foods low in fat to lose weight or to avoid gaining weight. This significant sex difference was identified for all the racial/ethnic and grade subpopulations.

Overall, white and Hispanic students (45.9% and 44.9%, respectively) were significantly more likely than black students (32.5%) to have eaten less food, fewer calories, or foods low in fat to lose weight or to avoid gaining weight. This significant racial/ethnic difference was identified for female students. White female students (63.1%) were significantly more likely than Hispanic female students (56.5%) to have eaten less food, fewer calories, or foods low in fat to lose weight or to avoid gaining weight, and Hispanic male students (32.7%) were significantly more likely than black male students (24.5%) to report this behavior. Across state surveys, prevalence ranged from 35.9% to 46.4% (median: 40.9%). Prevalence ranged from 29.5% to 42.4% (median: 37.5%) across local surveys.

Nationwide, 13.5% of students had gone without eating for >24 hours to lose weight or to avoid gaining weight.

Overall, female students (19.1%) were significantly more likely than male students (7.6%) to have gone without eating for >24 hours to lose weight or to avoid gaining weight. This significant sex difference was identified for white and Hispanic students and all the grade subpopulations. Hispanic and white female students (23.1% and 19.7%, respectively) were significantly more likely than black female students (15.2%) to have gone without eating for >24 hours to lose weight or to avoid gaining weight.

Overall, students in grade 9 (15.4%) were significantly more likely than students in grades 11 and 12 (11.5% and 11.5%, respectively) to report this behavior. Prevalence ranged from 10.3% to 16.2% (median: 13.5%) across state surveys and from 8.1% to 16.1% (median: 13.4%) across local surveys.

One tenth (9.2%) of students nationwide had taken diet pills, powders, or liquids without a doctor's advice to lose weight or to avoid gaining weight.

Overall, female students (12.6%) were significantly more likely than male students (5.5%) to have taken diet pills, powders, or liquids without a doctor's advice to lose weight or to avoid gaining weight. This significant sex difference was identified for white and Hispanic students and all the grade subpopulations.

Overall, Hispanic and white students (10.1% and 9.5%, respectively) were significantly more likely than black students (6%) to report this behavior. This significant racial/ethnic difference was identified for female students. Across state surveys, prevalence varied threefold from 4.9% to 13% (median: 8.5%). Prevalence varied threefold from 3.2% to 10.6% (median: 6.9%) across local surveys.

Nationwide, 5.4% of students had vomited or taken laxatives to lose weight or to avoid gaining weight.

Overall, female students (7.8%) were significantly more likely than male students (2.9%) to have vomited or taken laxatives to lose weight or to avoid gaining weight. This significant sex difference was identified for white and Hispanic students and students in all the grade subpopulations.

Overall, Hispanic students (7.2%) were significantly more likely than black students (4%) to report this behavior. Hispanic and white female students (10.8% and 8.2%, respectively) were significantly more likely than black female students (4.2%) to report this behavior. Prevalence ranged from 3.6% to 7.6% (median: 5.6%) across state surveys and varied threefold from 2.5% to 8.5% (median: 5.5%) across local surveys.

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