Presence of eating disorder symptoms in patients with obsessive-compulsive disorder

BMC Psychiatry

Table 2 Comparisons between female patients and controls

Variable	OCD (n = 94)	Controls (n = 233)		Independent-samples Yuen t-test
Variable	M (SD)	M (SD)	Trimmed mean difference (95% CI)	t	p	Robust d (95% CI)
Age^a	28.93 (8.62)	32.96 (7.00)	−5.64 (−7.30; −3.98)	−6.56	<.002*	−0.85 (−1.15; − 0.54)
BMI^b (kg/m²)	22.45 (3.37)	25.10 (4.85)	−2.21 (−3.12; − 1.30)	− 4.69	<.002*	− 0.55 (− 0.80; − 0.33)
OCI-R total^c	28.60 (12.77)	5.88 (7.03)	23.99 (20.79; 27.20)	15.43	<.002*	3.12 (2.49; 3.82)
EDE-Q global^d	1.51 (1.41)	1.16 (0.98)	0.26 (−0.10; 0.61)	1.42	0.825	0.22 (−0.06; 0.52)
EDE-Q restriction^d	1.47 (1.68)	0.96 (1.05)	0.37 (−0.04; 0.78)	1.77	0.385	0.29 (−0.00; 0.62)
EDE-Q eating concern^d	0.83 (1.27)	0.45 (0.74)	0.21 (−0.05; 0.47)	1.89	0.495	0.35 (0.06; 0.65)
EDE-Q weight concern^d	1.68 (1.53)	1.53 (1.33)	0.14 (−0.28; 0.57)	0.64	1.000	0.09 (−0.17; 0.37)
EDE-Q shape concern^d	2.07 (1.72)	1.68 (1.40)	0.40 (−0.10; 0.89)	1.57	0.550	0.23 (−0.05; 0.53)
	Frequencies		Χ² test
	n (%)	n (%)	p
Above EDE-Q cut-off	21 (22.6%)	26 (11.2%)	.032*
Have a probable ED	8 (8.7%)	3 (1.3%)	.010^e*
Have binged	21 (22.8%)	38 (16.3%)	.679
Have purged	8 (8.8%)	14 (6.0%)	1.000

Note. All p-values have been adjusted according to a Bonferroni correction for multiple comparisons. BMI: Body mass index (kg/m²); CI: Confidence interval; d: Cohen’s robust d effect size; ED: Eating disorder; EDE-Q: Eating Disorder Examination-Questionnaire; M: Means; NA: Analysis not performed; OCD: Patients with obsessive-compulsive disorder; OCI-R: Obsessive Compulsive Inventory-Revised; SD: Standard deviation; Χ²: Wald Χ² test. * Statistically significant. ^a Data not available for one control. ^b Data not available for two patients. ^c Data not available for 12 patients. ^d Data not available for one patient. ^e Fisher’s exact test

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