Table 1.

Comparison of Eating Disorder Pathology and Psychiatric Comorbidity Over Time (N = 61)

	Initial Screen	9-Month Follow-Up	Significance
Eating disorder symptoms
Current body mass index	18.97 (0.44)	19.92 (0.45)	t(59) = −1.92; p=.060 d = −0.25
Lowest past year body mass index	17.22 (1.80)	18.35 (1.97)	t(58) = −3.02; p=.004 d = −0.39
Weight Concerns Scale score	77.19 (13.04)	65.22 (17.96)	t(60) = 5.37; p<.001 d = 0.69
Binge eating frequency (past 3 months)	12.54 (23.46)	9.07 (19.66)	t(58) = 1.56; p=.125 d = 0.20
Vomit frequency (past 3 months)	10.93 (32.66)	8.74 (30.34)	t(60) = 0.74; p=.460 d = 0.10
Diuretics/laxatives frequency (past 3 months)	2.46 (7.06)	2.33 (8.66)	t(60) = 0.15; p=.885 d = 0.02
Excessive exercise frequency (past 3 months)	16.66 (25.43)	9.15 (20.91)	t(60) = 2.74; p=.008 d = 0.35
Fasting frequency (past 3 months)	10.41 (16.99)	7.89 (15.32)	t(60) = 1.08; p=.286 d = 0.14
Eating disorder-related clinical impairment
School work	3.38 (1.11)	2.92 (1.07)	t(60) = 2.91; p=.005 d = 0.37
Relationships	3.46 (1.10)	3.25 (1.09)	t(60) = 1.42; p=.160 d = 0.18
Self-image	4.26 (0.75)	3.89 (0.99)	t(60) = 2.89; p=.005 d = 0.37
Psychiatric comorbidity
Depression	3.20 (1.28)	2.82 (1.27)	t(60) = 2.46; p=.017 d = 0.31
Anxiety	3.97 (1.03)	3.54 (1.18)	t(60) = 3.48; p=.001 d = 0.45
Sleep problems	3.05 (1.37)	2.72 (1.38)	t(60) = 1.69; p=.096 d = 0.22