Table 2.

Comparison of clinical variables.

		Mean (standard deviation)								Pairwise comparisons
		BSD (n = 57)		BSD + NSSI (n = 28)		BSD + SA (n = 37)		Factor group		BSD vs. BSD + NSSI		BSD vs. BSD + SA		NSSI vs. SA
		Mean	SD	Mean	SD	Mean	SD	Fdf = 119	p	MDa	|d|b	MDa	|d|b	MDa	|d|b
Age (years-old)		29.30	10.04	26.29	7.64	29.19	9.71	1.07	0.347	3.01	0.34	0.11	0.01	−2.90	0.33
Age of onset (years-old)		21.16	8.36	18.11	6.34	19.16	9.32	1.46	0.237	3.05	0.41	2.00	0.23	−1.06	0.13
Duration of BSD (years)		8.06	6.99	8.36	6.72	10.04	8.31	0.86	0.427	−0.30	0.04	−1.99	0.26	−1.68	0.22
Number of previous treatments		0.53	0.78	0.69	1.19	0.76	0.86	0.79	0.455	−0.17	0.16	−0.23	0.28	−0.06	0.06
Binges per week		4.23	3.97	2.86	2.88	4.73	6.11	1.43	0.244	1.37	0.40	−0.50	0.10	−1.87	0.39
Vomits per week		3.48	5.21	3.82	3.99	5.36	10.24	0.86	0.427	−0.34	0.07	−1.88	0.23	−1.54	0.20
Laxatives per week		2.75	7.01	2.52	6.97	2.22	4.83	0.08	0.924	0.24	0.03	0.54	0.09	0.30	0.05
BMI (kg/m2)		28.23	10.09	24.65	6.89	23.84	6.55	3.51	0.033	3.58	0.41	4.39	0.52	0.81	0.12
EDI: Drive for thinness	α = 0.77	14.96	5.24	17.04	3.43	14.70	5.21	2.17	0.118	−2.07	0.50	0.26	0.05	2.33	0.53
EDI: Body dissatisfaction	α = 0.87	18.21	7.89	19.00	6.69	18.59	7.63	0.11	0.899	−0.79	0.11	−0.38	0.05	0.41	0.06
EDI: Interoceptive Awareness	α = 0.78	10.42	5.82	13.86	6.97	14.08	6.90	4.67	0.011	−3.44	0.53	−3.66	0.57	−0.22	0.03
EDI: Bulimia	α = 0.77	8.77	5.34	8.93	5.08	7.57	5.09	0.76	0.471	−0.16	0.03	1.20	0.23	1.36	0.27
EDI: Interpersonal Distrust	α = 0.77	4.00	3.26	6.89	4.75	8.22	4.94	12.33	<0.001	−2.89	0.71	−4.22	1.01	−1.32	0.27
EDI: Ineffectiveness	α = 0.87	8.58	5.73	13.75	7.03	17.05	7.94	18.41	<0.001	−5.17	0.81	−8.48	1.22	−3.30	0.44
EDI: Maturity fears	α = 0.80	8.21	5.25	8.75	6.95	10.24	6.39	1.30	0.277	−0.54	0.09	−2.03	0.35	−1.49	0.22
EDI: Perfectionism	α = 0.73	4.93	4.50	6.89	4.39	5.92	4.19	1.96	0.145	−1.96	0.44	−0.99	0.23	0.97	0.23
EDI: Impulse regulation	α = 0.82	4.81	5.75	7.50	5.85	10.14	7.28	8.18	<0.001	−2.69	0.46	−5.33	0.81	−2.64	0.40
EDI: Ascetism	α = 0.65	6.14	3.74	8.32	3.13	9.35	5.02	7.58	0.001	−2.18	0.63	−3.21	0.72	−1.03	0.25
EDI: Social insecurity	α = 0.83	5.70	4.35	10.46	5.77	10.86	5.75	14.34	<0.001	−4.76	0.93	−5.16	1.01	−0.40	0.07
EDI: Total score	α = 0.95	94.74	36.12	121.39	36.50	126.73	46.17	8.72	<0.001	−26.7	0.73	−32.0	0.77	−5.34	0.13

BSD, bulimic-spectrum disorder; NSSI, non-suicidal self-injury; SA, suicide attempts; BMI, body mass index; |d|, Cohen's-d for effect size.

^aBold, significant pairwise comparison (0.05 level).

^bBold, moderate (|d| > 0.5) to large (|d| > 0.8) effect size.

α, Chronbach's alpha in the sample. Results obtained via ANOVA procedure.