Table 3

Percentage change in the number of beverage sales per customer at 12 weeks and 6 months following implementation

Beverage categoryChange at 12 weeks*Change at 6 months†
On-menuChange (%)95% CIp ValueChange (%)95% CIp Value
Levied SSBs−11.04(−17.30 to 4.30)p=0.003−9.34(−15.21 to 3.15)p=0.004
Fruit juice (main menu)3.36(−4.50 to 11.96)p=0.39421.77(14.00 to 30.21)p<0.0001
Fruit juice (children’s menu)−34.69(−55.43 to 4.30)p=0.031−9.88(−16.81 to 2.37)p=0.011
Diet cola−1.88(−6.01 to 2.53)p=0.377−7.32(−11.66 to 2.76)p=0.002
Bottled water5.44(−1.19 to 12.64)p=0.104−6.48(−11.04 to 1.69)p=0.009
Off-menu
Levied SSBs−8.06(−16.39 to 1.21)p=0.084−4.21(−10.24 to 2.12)p=0.187
Mixers21.53(8.22 to 36.62)p=0.0022.43(−3.15 to 8.33)p=0.402
  • Analyses at 12 weeks are based on n=888 restaurant weeks; analyses at 6 months based on n=820 restaurant periods.

  • Percentages are the exponentiated coefficients of change in log-transformed numbers of beverages sold per customer and are calculated from: Embedded Image  (see online supplementary appendix 3 for more details).

  • *Robust standard errors.

  • †Robust clustered standard errors adjusted for seasonality and clustering.

  • SSBs, sugar-sweetened beverages.