Table 1.
Descriptive statistics about variables used in the propensity score matching.
| Variables | Descriptive statistics (mean or frequency distribution) |
|---|---|
| Outcome variable | |
|
| |
| Number of SSBs on the prior day | 1.09 (1.45) |
|
| |
| Exposure variable | |
|
| |
| Self-reported availability of sugar-sweetened beverage at school vending machines | |
| Yes | 2285 (57.4%) |
| No | 1698 (42.6%) |
|
| |
| Predictors | |
| Age (mean) | 14.4 (.026) |
| Gender (female) | 1979 (49.1%) |
| Parental education | |
| Less than high school (referent group) | 184 (21.0%) |
| High school only | 180 (20.3%) |
| Some college | 189 (21.3%) |
| Graduated from college | 334 (37.7%) |
| Race/ethnicity | |
| White (referent group) | 70 (7.9%) |
| African American | 176 (4.4%) |
| Latino | 823 (20.7%) |
| Asian | 321 (8.1%) |
| School type (public schools) | 3505 (87.0%) |
| Household income (at or above federal poverty line) | 3490 (87.6%) |
|
| |
| N = 3983 | |