Table 5.
Final models describing correlates of weekday consumption of three varieties of sugar-sweetened beverages (SSB) among secondary-school students (n 41 829) from Alberta and Ontario participating in Year 2 of the COMPASS study, Canada, 2013/14
| Weekday SSB consumption† | ||||||||
|---|---|---|---|---|---|---|---|---|
| Composite SSB score‡ | Soft drinks | Sweetened coffees/teas | Energy drinks | |||||
| Variable type | Adjusted rate§ | 95 % CI | Adjusted rate§ | 95 % CI | Adjusted rate§ | 95 % CI | Adjusted rate§ | 95 % CI |
| School beverage availability | ||||||||
| Availability of sweetened coffees and teas in school vending machines | ||||||||
| Unavailable | 1·00 | Ref. | – | – | – | – | 1·00 | Ref. |
| Available | 1·08** | 1·03, 1·13 | – | – | – | – | 1·27*** | 1·11, 1·46 |
| School neighbourhood food outlets | ||||||||
| Access to restaurants within 1 km buffer of school | ||||||||
| No | – | – | – | – | 1·00 | Ref. | 1·00 | Ref. |
| Yes | – | – | – | – | 1·04 | 0·99, 1·08 | 1·09 | 0·96, 1·24 |
Ref., reference category; –, variable was excluded from model during univariate analyses screening or the block-wise model-building process.
**P<0·01, ***P<0·001.
Number of weekdays participants reported consuming SSB in a typical school week (Monday to Friday, 0–5 days).
A composite score, ranging from 0 to 15, representing the sum of participants’ weekday rates of consuming the three distinct SSB categories.
Rates represent the exponentiated beta coefficients; rates adjusted for all other variables in the column, in addition to school- and student-level control variables.