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. Author manuscript; available in PMC: 2022 Jun 1.
Published in final edited form as: Body Image. 2021 Feb 5;37:38–49. doi: 10.1016/j.bodyim.2021.01.006

Table 5.

Parameter Estimates for Sample 2 Participants Within Each Body Mass Index Classification and Between-Group Differences

Underweight/Average Weight (n = 690) Overweight (n = 370) obese (n = 304)
BMI Class Differences
Direct Effects b(SE) p β b(SE) p β b(SE) p β Wald χ2 (df = 2) Wald χ2 (df = 1)
Body Dissatisfaction → Binge Eating 0.44 (0.04) <.001 .51 0.35 (0.07) <. 001 .36 0.37 (0.09) <.001 .35 2.17
WBI → Binge Eating −0.12 (0.20) .566 −.03 0.58 (0.32) .071 .13 0.58 (0.40) .143 .13 -
Weight Stigma → Binge Eating 0.96 (0.20) <.001 .16 1.42 (0.24) <.001 .25 0.60 (0.29) .039 .12 -
Body Dissatisfaction → Purging 0.08 (0.02) .001 .18 0.07 (0.04) .093 .12 0.13 (0.07) .054 .18 0.69
WBI → Purging 0.28 (0.11) .008 .13 0.38 (0.19) .050 .13 0.12 (0.31) .713 .04 -
Weight Stigma → Purging 1.06 (0.20) <.001 .34 1.34 (0.27) <.001 .38 0.50 (0.30) .097 .15 -
Body Dissatisfaction → Restricting 0.39 (0.04) <.001 .46 0.32 (0.06) <.001 .40 0.32 (0.06) <.001 .41 1.31
WBI → Restricting −0.14 (0.21) .498 −.03 −0.15 (0.28) .591 −.04 −0.42 (0.28) .129 −.12 -
Weight Stigma → Restricting 0.98 (0.20) <.001 .16 1.05 (0.23) <.001 .22 0.85 (0.24) <.001 .23 -
Body Dissatisfaction → Excessive Exercise 0.25 (0.04) <.001 .32 0.18 (0.06) .002 .23 0.26 (0.06) <.001 .34 1.33
WBI → Excessive Exercise 0.08 (0.20) .674 .02 −0.41 (0.27) .123 −.11 −0.35 (0.29) .237 −.11 -
Weight Stigma → Excessive Exercise 0.19 (0.20) .360 .03 1.01 (0.22) <.001 .22 0.11 (0.24) .654 .03 -
Body Dissatisfaction → Muscle Building 0.10 (0.03) .001 .18 0.02 (0.05) .667 .03 0.11 (0.05) .032 .21 2.58
WBI → Muscle Building −0.02 (0.15) .884 −.01 −0.21 (0.21) .330 −.07 −0.07 (0.26) .785 −.03 -
Weight Stigma → Muscle Building 0.98 (0.19) <.001 .25 1.26 (0.20) <.001 .33 0.21 (0.19) .260 .08 -
WBI → Body Dissatisfaction 3.41 (0.13) <.001 .70 3.30 (0.17) <.001 .70 3.18 (0.16) <.001 .73 1.07
Weight Stigma → Body Dissatisfaction 0.23 (0.27) .396 .03 0.48 (0.21) .025 .08 0.46 (0.20) .021 .10 -
Weight Stigma → WBI 0.57 (0.05) <.001 .39 0.48 (0.06) <.001 .38 0.42 (0.06) <.001 .39 3.92
Underweight/Average Weight (n = 690) Overweight (n = 370) Obese (n = 304)
Indirect Effects b(SE) 95% CI b(SE) 95% CI b(SE) 95% CI BMI Class Differences
LL UL LL UL LL UL Wald χ2 (df = 2)
Weight Stigma → WBI → Body Dissatisfaction →
 Binge Eating 0.86 (0.12) 0.66 1.11 0.54 (0.13) 0.32 0.82 0.49 (0.14) 0.25 0.80 5.69
 Purging 0.15 (0.05) 0.07 0.25 0.11 (0.07) −0.01 0.26 0.17 (0.09) 0.01 0.38 0.39
 Restricting 0.75 (0.10) 0.58 0.99 0.51 (0.12) 0.31 0.76 0.43 (0.11) 0.25 0.68 4.92
 Excessive Exercise 0.48 (0.09) 0.33 0.67 0.28 (0.10) 0.10 0.50 0.35 (0.10) 0.17 0.57 2.48
 Muscle Building 0.19 (0.06) 0.08 0.31 0.03 (0.07) −0.11 0.19 0.15 (0.08) 0.01 0.32 3.10
Weight Stigma → WBI →
 Binge Eating −0.07 (0.12) −0.29 0.16 0.28 (0.16) −0.02 0.61 0.25 (0.17) −0.08 0.60 -
 Purging 0.16 (0.06) 0.04 0.29 0.18 (0.10) −0.01 0.38 0.05(0.13) −0.22 0.30 -
 Restricting −0.08 (0.12) −0.32 0.15 −0.07 (0.14) −0.35 0.19 −0.18 (0.13) −0.46 0.03 -
 Excessive Exercise 0.05 (0.12) −0.17 0.28 −0.20 (0.13) −0.47 0.05 −0.15 (0.13) −0.42 0.08 -
 Muscle Building −0.01 (0.09) −0.18 0.16 −0.10 (0.10) −0.31 0.10 −0.03 (0.11) −0.27 0.18 -
Weight Stigma → WBI → Body Dissatisfaction 1.95 (0.20) 1.59 2.37 1.58 (0.22) 1.22 2.06 1.34 (0.19) 1.00 1.73 -

Note. WBI = weight bias internalization; Weight stigma = experienced weight stigma; BMI = body mass index; UW/AW = underweight/average weight; OW = overweight; OB = obese; CI = 95% bias-corrected bootstrapped confidence intervals; LL = lower limit; UL = upper limit; - = effect not directly involved in the central mediational paths of interest, difference tests not run to avoid increasing Type I error; all Wald χ2 difference tests for the assessed direct and indirect effects were non-significant.

a

UW/AW vs. OW.

b

UW/AW vs. OB.

c

OW vs. OB.

*

p < .05;

**

p < .01;

***

p < .001.