Table 1. Mean Price and Volume Sold of Taxed and Untaxed Beverages in Cook County, Illinois, and St Louis County and City, Missouria.
| Variable | Cook County | St Louis | ||||
|---|---|---|---|---|---|---|
| Pretax period | Tax period | Postrepeal period | Pretax period | Tax period | Postrepeal period | |
| Price, mean (SD), cents/fl oz | ||||||
| Taxed | 3.506 (0.085) | 4.661 (0.070) | 3.553 (0.102) | 3.601 (0.071) | 3.599 (0.080) | 3.648 (0.065) |
| SSB | 3.465 (0.079) | 4.613 (0.067) | 3.507 (0.096) | 3.573 (0.069) | 3.574 (0.074) | 3.620 (0.062) |
| ASB | 3.651 (0.111) | 4.827 (0.094) | 3.714 (0.132) | 3.702 (0.087) | 3.685 (0.105) | 3.746 (0.080) |
| Untaxed | 2.249 (0.038) | 2.224 (0.017) | 2.208 (0.025) | 2.506 (0.040) | 2.432 (0.018) | 2.418 (0.015) |
| Volume sold, mean (SD), millions of fl oz | ||||||
| Taxed | 289.421 (35.554) | 206.040 (17.582) | 272.372 (33.974) | 91.439 (7.824) | 88.019 (7.033) | 84.000 (6.533) |
| SSB | 231.837 (29.825) | 171.026 (16.317) | 224.399 (30.113) | 64.983 (6.116) | 62.612 (5.330) | 60.668 (5.272) |
| ASB | 57.478 (6.728) | 34.896 (1.628) | 47.732 (5.545) | 26.380 (2.058) | 25.287 (1.905) | 23.208 (1.995) |
| Untaxed | 396.373 (33.172) | 416.441 (27.732) | 421.253 (37.136) | 90.056 (5.906) | 91.265 (4.401) | 92.353 (6.392) |
Abbreviations: ASB, artificially sweetened beverage; SSB, sugar-sweetened beverage.
a
Data are means across the 122 pretax weeks (from March 29, 2015, to July 29, 2017), 16 tax weeks (from August 6, 2017, to November 25, 2017), and 35 postrepeal weeks (from December 3, 2017, to August 4, 2018). Price was computed as the mean price across universal product codes (UPCs) in each site and week, weighted by volume sold by UPC from June 2016 to May 2017 in Cook County, St Louis, and the 2-mile border areas surrounding both sites. Volume sold was computed as the total across UPCs within each site and week.