Table 2 Estimates from linear mixed models showing sales relative to reference period within store groups

Intervention stores^a

Intervention period relative to 4 weeks before

0.93[0.80–1.06]

0.94[0.80–1.11]

1.31[0.78–2.20]

1.01[0.73–1.39]

0.80[0.58–1.11]

Intervention stores^a

Intervention period relative to 7 weeks after

0.96[0.84–1.11]

0.92[0.78–1.09]

1.37[0.82–2.30]

1.13[0.82–1.56]

0.86[0.62–1.19]

Control 1^b

Intervention period relative to 4 weeks before

0.95[0.87–1.03]

0.91[0.83–1.00]

1.03[0.75–1.42]

0.69[0.57–0.83]*

0.91[0.75–1.11]

Control 2^c

Intervention period relative to 4 weeks before

0.95[0.88–1.04]

0.93[0.85–1.03]

0.85[0.62–1.17]

0.79[0.65–0.96]*

0.96[0.79–1.15]