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Table 3 Estimated mean differences and model effects for primary outcomes

From: Size and shape of plates and size of wine glasses and bottles: impact on self-serving of food and alcohol

Study 1: Plate size and shape

Grams of food self-served

p

Cohen‘s d (95% CI)

Estimated mean (SE)

Estimated MD

(95% CI of the MD)

Plate size

 Small

123.6 (4.0)

− 76.4

− 86.7, − 66.2

< 0.001

− 1.5 (− 1.7, − 1.3)

 Medium

159.6 (5.2)

− 40.5

− 48.2, − 32.9

< 0.001

− 0.8 (− 0.9, − 0.7)

 Large

200.1 (6.8)

ref

Plate shape

 Square

160.3 (4.9)

− 1.5

− 5.6, 2.5

0.456

− 0.07 (− 0.21, 0.08)

 Round

161.9 (5.1)

ref

Study 2: Wine glass and bottle size

Millilitres of wine self-served

p

Cohen‘s d (95% CI)

Estimated mean (SE)

Estimated MD

(95% CI of the MD)

Glass size

 Small

126.7 (3.8)

− 33.9

− 39.3, − 28.6

< 0.001

− 1.4 (− 1.5, − 1.2)

 Medium

143.3 (4.35)

− 17.3

− 21.6, − 13.1

< 0.001

− 0.7 (− 0.9, − 0.6)

 Large

160.6 (5.2)

ref

Bottle size

 Small

144.5 (4.3)

1.9

− 1.0, 4.8

0.200

0.11 (− 0.04, 0.26)

 Large

142.6 (4.4)

ref

  1. MD (Mean difference); SE (Standard error); CI (confidence interval)