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Table 5 Nudge effectiveness and modifying effects on diet quality, in the longitudinal analysis (n = 496)1

From: Can nudge interventions targeting healthy food purchases in real-world grocery stores reduce diet-related health disparities? A pooled analysis of four controlled trials

 

β

95%CI

p-value

Crude intervention group main effect

0.00

-0.13, 0.14

0.97

Adjusted intervention group main effect2

-0.02

-0.14, 0.10

0.72

Nudge interventions x higher educational attainment2

0.02

-0.20, 0.21

0.87

Nudge interventions x age (continuous)2

-0.00

-0.01, 0.01

0.91

  1. 1Main within- and between group nudge effectiveness and interaction effects of group by the educational attainment and age on diet quality (z-score), based on the longitudinal analysis (n = 496). Analyses were based on a three-level linear mixed-effects model, with group as independent variable and diet quality as the dependent variable. Further fixed effects were time (categorical) and the baseline measurement of diet quality. Random intercepts were included for trials, grocery stores, and participants
  2. 2Adjusted for educational attainment, sex, age, and the number of persons purchased groceries for
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International Journal of Behavioral Nutrition and Physical Activity

ISSN: 1479-5868

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