Covariates for analyses
| Covariates | Classification based on | Categories |
| Food outlet type | The kind of food and drink sold | Kiosk (ice-cream, prepackaged snacks and drinks only) Canteen (ice-cream, prepackaged snacks and drinks, and a small selection of hot and cold foods) Café (ice-cream, prepackaged snacks and drinks, variety of hot and cold foods, food could be made to order) |
| Facility size | Median number of cold packaged drink units sold per week during study period | <50 units sold per week ≥50 units sold per week |
| Area level socioeconomic disadvantage | Socioeconomic Indexes for Areas (SEIFA) measure of disadvantage30 | Higher disadvantage (SEIFA ≤5th decile) Lower disadvantage (SEIFA ≥6th decile) |
| Seasonality of facility opening | Months of year facility usually open | Seasonal (included sporting clubs and outdoor pools which were often open only over the summer months)* Non-seasonal (open all year) |
| Season of audit | Month of audit | Summer (December–February) Autumn (March–May) Winter (June–August) Spring (September–November) |
| Mean maximum daily temperature for each week | Daily maximum temperature of the closest weather station to each local government area obtained from the Australian Bureau of Meteorology website31 | N/A—continuous variable |
*One facility that was open all year had a low weekly number of unit sales outside the summer season so for the purposes of this analysis was also considered a seasonal facility.
N/A, not applicable.