Table 1.

Mean and Standard Deviations with independent t-test results for clinical and demographic variables between participants scoring at/above and below clinical cut-off on the ADOS-2

	Below cut-off N = 19	Above cut-off N = 21	p	Effect size
Recruitment site	Inpatient =3 Outpatient =16	Inpatient =5 Outpatient =16
Age	15.58(1.35)	14.86(1.62)	0.136	d = 0.58
Age of onset of AN	14.58(1.39)	13.62(1.88)	0.077	d = 0.58
Duration of AN*	1.00(1.00)	1.00(1.00)	0.789	r = 0.05
%IBW	87.18(8.46)	88.51(7.19)	0.599	d = 0.17
EDE-Q Global score	3.95(1.50)	3.80(1.38)
Transformed EDE-Q Global score	1.53(0.44)	1.58(0.41)	0.707	d = 0.12
MFQ score	70.13(16.10)	71.11(14.24)	0.851	d = 0.07
OCI-R score	27.73(17.98)	33.74(18.05)	0.342	d = 0.34
WASI-II FSIQ	109.26(12.19)	108.15(16.16)	0.810	d = 0.08
% binge-purge subtype % Atypical AN	5.3 10.5	4.8 14.3

EDE-Q Eating Disorder Examination Questionnaire, WASI-II FSIQ Wechsler Abbreviated Scale of Intelligence Full-scale IQ, MFQ Mood and Feelings Questionnaire, OCI-R Obsessive Compulsive Inventory – Revised, %IBW percentage of ideal body weight

*Mann-Whitney U test, medians and interquartile ranges are reported along with Pearson’s r effect size, 0.05 indicates a negligible effect