Table 3. Population Attributable Fractions and 95% Confidence Intervals for Modifiable Risk Factors of Obesity Among High School Students, United States (N = 15,624), 2015 Youth Risk Behavior Survey.
| Modifiable Risk Factorsa | Population Attributable Fraction, % (95% Confidence Interval) |
|---|---|
| Dietary-related risk factors | |
| Did not eat fruit or drink 100% fruit juicesb | 1.53 (0.73 to 2.32) |
| Did not eat vegetablesb | −1.00 (−1.26 to −0.74) |
| Drank a can, bottle, or glass of soda or popb | 2.43 (1.96 to 2.89) |
| Did not eat breakfastb | 2.38 (1.80 to 2.97) |
| Did not drink milkb | −3.73 (−3.83 to −3.63) |
| Drank a can, bottle, or glass of a sports drinkb | −0.05 (−0.74 to 0.64) |
| Dietary-related risk factors combined | 2.29 (0.87 to 3.71) |
| Physical activity–related risk factors | |
| Did not participate in at least 60 minutes of physical activity on at least 1 dayb | 0.63 (0.32 to 0.94) |
| Did not attended physical education classes on ≥1 days during the past week | 1.01 (−0.25 to 2.28) |
| Did not play on at least 1 sports team during the past school year | 16.57 (15.30 to 17.84) |
| Watched television ≥3 hours per day on an average school day | 7.13 (6.89 to 7.36) |
| Played video or computer games or used a computer ≥3 hours per day on an average school day | 6.27 (4.21 to 8.32) |
| Physical activity–related risk factors combined | 27.96 (26.14 to 29.78) |
| Other lifestyle risk factors | |
| Currently drink alcoholc | −0.34 (−1.15 to 0.47) |
| Currently use cigarettes, cigars, or smokeless tobaccod | 5.73 (5.07 to 6.39) |
| Had ≤8 hours of sleep on an average school night | 1.95 (1.19 to 2.70) |
| Other lifestyle risk factors combined | 7.28 (6.51 to 8.05) |
| All modifiable risk factors combined | 34.80 (32.09 to 37.51) |
a
Values are expressed as percentages. Percentages are based on weighted data to represent of all students in grades 9 through 12 attending public and private schools in the United States. Source: Centers for Disease Control and Prevention (18).
b
During the 7 days before the survey.
c
Defined as at least 1 drink of alcohol on at least 1 day during the 30 days before the survey.
d
Defined as use on at least 1 day during the 30 days before the survey.