. Author manuscript; available in PMC: 2021 Dec 13.

Published in final edited form as: Behav Ther. 2014 Sep 18;46(2):257–271. doi: 10.1016/j.beth.2014.09.006

Table 2.

Separate Generalized Estimating Equations Analyses Using a Gamma Distribution of Social Comparisons (i.e., Body, Eating, and Exercise) and Body Surveillance as Predictors of Contemporaneous Body Dissatisfaction Controlling for Negative Affect

For the model involving the predictor variable of body-related social comparison:
Parameter Estimates	B	SE	Wald χ²	df	p
Outcome variable: body dissatisfaction, N_{Level 1} = 8742, N_{Level 2} = 232
Intercept	2.78	.17	281.89	1	<.001
Body-related Social Comparison (person-mean centered)	.01	.001	116.12	1	<.001
Body-related Social Comparison (person means)	.04	.003	138.49	1	<.001
Time	.001	.0001	18.00	1	<.001
Negative Affect (person-mean centered)	.003	.003	1.10	1	.295
Negative Affect (person means)	−.02	.02	1.73	1	.189
(Scale)	.91
Pseudo-R² = .186
For the model involving the predictor variable of eating-related social comparison:
Parameter Estimates	B	SE	Wald χ²	df	p
Outcome variable: body dissatisfaction, N_{Level 1} = 8742, N_{Level 2} = 232
Intercept	3.14	.17	361.62	1	<.001
Eating-related Social Comparison (person-mean centered)	.01	.001	102.62	1	<.001
Eating-related Social Comparison (person means)	.03	.003	103.80	1	<.001
Time	.0004	.0001	10.99	1	.001
Negative Affect (person-mean centered)	.01	.003	2.92	1	.087
Negative Affect (person means)	−.02	.02	1.38	1	.240
(Scale)	1.00
Pseudo-R² = .118
For the model involving the predictor variable of exercise-related social comparison:
Parameter Estimates	B	SE	Wald χ²	df	p
Outcome variable: body dissatisfaction, N_{Level 1} = 8742, N_{Level 2} = 232
Intercept	3.03	.18	297.64	1	<.001
Exercise-related Social Comparison (person-mean centered)	.01	.001	69.16	1	<.001
Exercise-related Social Comparison (person means)	.03	.003	87.00	1	<.001
Time	.0005	.0001	14.20	1	<.001
Negative Affect (person-mean centered)	.01	.003	2.95	1	.086
Negative Affect (person means)	.004	.02	.04	1	.837
(Scale)	.81
Pseudo-R² = .090
For the model involving the predictor variable of body surveillance:
Parameter Estimates	B	SE	Wald χ²	df	p
Outcome variable: body dissatisfaction, N_{Level 1} = 8742, N_{Level 2} = 232
Intercept	1.42	.24	36.20	1	<.001
Body Surveillance (person-mean centered)	.13	.01	99.08	1	<.001
Body Surveillance (person means)	.41	.04	85.55	1	<.001
Time	.001	.0001	28.99	1	<.001
Negative Affect (person-mean centered)	.01	.003	5.89	1	.015
Negative Affect (person means)	.03	.02	3.18	1	.075
(Scale)	.79
Pseudo-R² = .132