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Table 3 Regression results showing the effects of Nutri-Grade and other covariates on diet quality: foods and beverages (n = 269)

From: A randomized trial to evaluate the impact of Singapore’s forthcoming Nutri-grade front-of-pack beverage label on food and beverage purchases

 

Average NS

Sugar (g) per serving

Saturated fat (g) per serving

Calories (kcal) per serving

Total sugar (g)

Total saturated fat (g)

Total calories

NG

− 0.024

0.33

− 0.043

2.39

−60.8

−34.6

− 419.6

[−0.13, 0.080]

[− 0.73, 1.40]

[− 0.42, 0.33]

[−17.9, 22.6]

[− 441.0, 319.4]

[− 126.5, 57.2]

[− 4091.6, 3252.5]

Age

0.0022

− 0.0027

0.0087

1.33*

5.03

5.43

311.8*

[−0.0092, 0.013]

[−0.078, 0.073]

[− 0.016, 0.033]

[− 0.042, 2.71]

[−29.5, 39.6]

[−2.84, 13.7]

[−18.8, 642.4]

Female

− 0.15

0.46

0.14

5.26

185.4

85.0

2084.2

[−0.38, 0.082]

[−1.07, 2.00]

[−0.35, 0.64]

[−22.6, 33.1]

[−514.8, 885.6]

[−82.6, 252.5]

[− 4612.9, 8781.3]

High edu

0.21

−0.56

0.27

31.6*

− 838.6**

−44.5

− 1846.1

[−0.057, 0.48]

[−2.35, 1.23]

[−0.31, 0.85]

[− 0.97, 64.1]

[− 1654.2, − 23.1]

[− 239.7, 150.7]

[− 9647.0, 5954.8]

High income

0.019

−0.39

− 0.15

−31.7**

479.4

61.3

− 372.6

[−0.20, 0.24]

[−1.88, 1.11]

[−0.63, 0.33]

[−58.8, − 4.47]

[− 203.3, 1162.1]

[− 102.0, 224.7]

[− 6901.8, 6156.7]

High BMI

− 0.28**

0.25

0.31

−8.35

221.5

43.8

3475.8

[−0.50, − 0.058]

[−1.24, 1.74]

[− 0.17, 0.80]

[−35.5, 18.8]

[− 458.7, 901.7]

[− 119.0, 206.6]

[− 3030.3, 9981.9]

No health condition

− 0.25**

0.88

0.14

−8.03

162.0

8.54

1169.0

[−0.48, − 0.018]

[− 0.68, 2.44]

[−0.37, 0.64]

[−36.4, 20.3]

[− 548.1, 872.2]

[−161.4, 178.5]

[− 5623.5, 7961.6]

Constant

2.75***

9.14***

1.30*

66.2

1948.1*

122.0

9532.0

[2.09, 3.41]

[4.70, 13.6]

[−0.14, 2.74]

[−14.4, 146.9]

[−69.4, 3965.6]

[− 360.8, 604.8]

[− 9765.6, 28,829.5]

Period fixed effect (θj)

0.16***

−0.87

−0.048

6.72

− 191.4

−43.0

− 621.7

[0.051, 0.26]

[−1.94, 0.20]

[−0.42, 0.33]

[−13.6, 27.0]

[− 571.8, 189.1]

[− 134.9, 48.9]

[− 4296.0, 3052.5]

Ln (σμ)

− 0.62***

0.98***

− 0.31

3.81***

7.33***

5.89***

9.58***

[−0.78, − 0.46]

[0.65, 1.31]

[− 0.79, 0.17]

[3.42, 4.20]

[7.13, 7.52]

[5.69, 6.09]

[9.38, 9.78]

  1. Ln (σμ) represents the logarithm of the standard deviation of constant (subject-specific random effect; μi);* p < 0.1, ** p < 0.05, *** p < 0.01
  2. NG Nutri-Grade, NS Nutri-Score