Table 2.
Changea in Daily Servings of Sugar-Sweetened Beverages (SSBs) Consumed Among Boston High School Students, Boston Youth Survey, 2004-2006
| Type of Beverage | Crude Modelb | Model Adjusted for Covariatesc | ||||
|---|---|---|---|---|---|---|
|
| ||||||
| Estimate (95% CI) | P Valued | R 2 | Estimate (95% CI) | P Valued | Adjusted R 2 | |
| Total SSBse | −0.32 (−0.45 to −0.19) | <.001 | 0.01 | −0.30 (−0.43 to −0.17) | <.001 | 0.06 |
| Soda | −0.18 (−0.26 to −0.10) | <.001 | 0.01 | −0.16 (−0.23 to −0.08) | <.001 | 0.03 |
| Other SSBs | −0.14 (−0.23 to −0.06) | <.001 | 0.01 | −0.14 (−0.23 to −0.06) | <.001 | 0.06 |
Abbreviations: Estimate, coefficient estimate for change; CI, confidence interval.
Change from baseline survey year (2004) to follow-up year (2006) after policy change that restricted the sale of SSBs on school grounds was implemented.
Crude models include indicator for data collection after policy change only.
Covariates in adjusted models are sex, grade, race/ethnicity, and primary neighborhood of residence.
P value obtained from t test for coefficient estimated using multiple linear regression.
SSBs included soda and other sugar-sweetened drinks such as fruit punch and lemonade. One serving was defined as 1 "can" or a similar 12-oz serving. Respondents were instructed to count a 20-oz bottle as 2 cans.