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Table 4 Standardized coefficients for all regression models investigating ratings of all facial attributes before and after 2 vs 5 vs 8 portions/day FV consumption over the past 4 weeks in male facial images*

From: The value of facial attractiveness for encouraging fruit and vegetable consumption: analyses from a randomized controlled trial

 

FV consumption – attractiveness1

β

95% CI

p.

FV consumption

−0.17

−0.45, 0.11

0.24

FV consumption – Mediating variables2

Mediating variables – Attractiveness3

β

95% CI

p.

β

95% CI

p.

Skin yellowness

0.32

−0.12, 0.76

0.15

0.06

0.01, 0.11

0.02

Skin yellowness squared

23.5

−22.1, 69.2

0.31

< 0.01

- < 0.01, < 0.01

0.19

Skin redness

0.35

−0.03, 0.73

0.07

0.01

−0.03, 0.06

0.60

Skin redness squared

50.6

15.1, 86.1

< 0.01

< 0.01

- < 0.01, < 0.01

0.98

Skin healthiness

−0.03

−0.35, 0.29

0.84

0.29

0.23, 0.35

< 0.01

Skin healthiness squared

−12.6

−42.1, 16.9

0.40

< 0.01

< 0.01, < 0.01

< 0.01

Skin clarity

−0.02

−0.41, 0.36

0.91

0.16

0.11, 0.22

< 0.01

Skin clarity squared

2.06

−36.3, 40.4

0.92

< 0.01

< 0.01, < 0.01

< 0.01

Facial symmetry

0.29

−0.09, 0.68

0.14

0.17

0.11, 0.23

< 0.01

Facial symmetry squared

18.8

−22.1, 59.7

0.36

< 0.01

< 0.01, < 0.01

< 0.01

 

FV consumption – attractiveness including no mediators4

β

95% CI

p.

FV consumption

−0.17

− 0.45, 0.11

0.24

Baseline attractiveness

0.70

0.64, 0.75,

< 0.01

  1. *Facial images were gained in Belfast, UK, 2011. Ratings of facial attributes were gained in Bournemouth, UK, 2013–2015
  2. Significant relationships (p < 0.05) are emboldened
  3. 1Primary models - ratings of perceived attractiveness were predicted using FV consumption over the past 4 weeks, when controlling for face ID and baseline ratings of attractiveness. Overall model performance R2=0.48, F(3,72) = 210.96, p < 0.01
  4. 2Secondary models - ratings of skin yellowness, skin redness, skin healthiness, skin clarity and facial symmetry were predicted using FV consumption over the past 4 weeks (when controlling for face ID and baseline variables)
  5. 3Secondary models - ratings of attractiveness were predicted using ratings of skin yellowness, skin redness, skin healthiness, skin clarity and facial symmetry (when controlling for face ID and baseline variables);
  6. 4Final models - ratings of perceived attractiveness were predicted using FV consumption over the past 4 weeks, when controlling for face ID, baseline ratings of attractiveness and significant mediators. Overall model performance R2=0.48, F(3,72) = 210.96, p < 0.01