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Table 3 Interactions between revealed preference and attribute levels in young Australian adults (18–30 years) in the CHOICE Study excluding the opt-out option (n = 92)

From: Ranking of meal preferences and interactions with demographic characteristics: a discrete choice experiment in young adults

Attribute

Attribute level

Coefficient

(95% CI)

P value

Nutrition content

Low (reference)

Adequate

1.59

(0.92, 2.25)

< 0.001

Optimal

2.31

(1.58, 3.04)

< 0.001

Cost

$5 per person (reference)

$10 per person

0.45

(0.06, 0.83)

0.023

$15 per person

0.75

(0.26, 1.24)

0.003

Taste

Sufficient (reference)

Good

0.63

(0.22, 1.05)

0.003

Very good

0.69

(0.20, 1.18)

0.006

Familiarity

Not very (reference)

Somewhat

0.20

(−0.10, 0.50)

0.20

Very

0.19

(−0.13, 0.52)

0.24

Time

5 min (reference)

15 min

−0.11

(− 0.44, 0.22)

0.51

30 min

− 0.16

(−0.58, 0.26)

0.46

  1. Data are dummy coded conditional logit model coefficients and 95% CI for the interaction terms from models containing main effects of attribute levels and revealed preferences, and their interactions. Coefficients represent the estimated difference in attribute level coefficients from the DCE between levels of the binary revealed preference moderator. Revealed preferences were as follows, with reference categories listed first: nutrition content (low and adequate vs. optimal); cost (≤$10 vs. >$10); taste (sufficient and good vs. very good); familiarity (not very and somewhat vs. very); time (≤20mins vs. > 20 mins)