. Author manuscript; available in PMC: 2013 Nov 1.

Published in final edited form as: Int J Eat Disord. 2012 Apr 20;45(7):819–826. doi: 10.1002/eat.22022

Table 3.

Chi-square results from logistic regression models with eating-related variables at age 19–20 as the dependent variable and pubertal development, sex, and zygosity as the independent variables. Generalized estimating equation modeling corrections applied to account for non-independence of the data.

Independent Variables	Dieting χ²	Purging Behaviors χ²
Pubertal Development	2.55	2.24
Eating Disorder Diagnosis	5.36^*	4.01
Dieting at Age 16–17	100.41^**	--
Purging at Age 16–17	--	26.24^**
Sex	45.01^**	27.54^**
Zygosity	1.47	0.27

p < 0.05

^**

p < 0.01