Table 1. Demographic and clinical variables of the sample, oxytocin and placebo groups.

Demographics Categorical Variables		Total sample		Oxytocin group		Placebo group		Test statistics
		(N = 149)		(n = 76)		(n = 73)
		n	%	n	%	n	%	χ2	df	P
Ethnicity	White/Caucasian Asian/Mid. Eastern Other1	53 69 27	36 46 18	27 36 13	36 47 17	26 33 14	36 45 19	0.13	2	.94
Main language spoken at home	English Other2	100 49	67 33	47 29	62 38	53 20	73 27	1.95	1	.16
Paid Employment	Part time/casual Unemployed	64 85	43 57	36 40	47 53	28 45	38 62	1.23	1	.27
Education (highest level)	Year 12 or equiv. University qualification3 Other4	124 18 7	83 12 5	62 10 4	82 13 5	62 8 3	85 11 4	0.31	2	.86
Marital status	Never married Married	149 0	100 0	76 0	100 0	73 0	100 0	-	-	-
Using oral contraceptive medication	Yes No	32 117	22 78	14 62	18 82	18 55	25 75	0.86	1	.35
Using medication5	Yes No	8 141	5 95	4 72	5 95	4 69	6 94	0.00	1	.95
History of eating disorder6	Yes No	14 135	9 91	7 69	9 91	7 66	10 90	0.01	1	.94
Current eating disorder	Yes No	1 148	1 99	1 75	1 99	0 73	0 100	0.97	1	.33
History of psychiatric condition	Yes No	3 146	2 98	2 74	3 97	1 72	1 99	0.30	1	.58
On day 3–12 of menstrual cycle	Yes No Don’t know or N/A	43 53 53	29 36 36	24 28 24	32 37 32	19 25 29	26 34 40	1.16	2	.56
High EAT-26 total score (≥ 20)	Yes No	35 114	24 76	24 52	32 68	11 62	15 85	5.65	1	.02
Continuous Variables		M	SD	M	SD	M	SD	t (df)	p	d
	Age	18.79	1.08	18.9	1.08	18.7	1.08	.96 (147)	.34	.16
	BMI	17.75	2.89	17.9	3.15	17.6	2.60	.57 (147)	.57	.09

Note. df = degrees of freedom; d = Cohen’s d.

¹“Other” combined languages including Chinese, Mandarin, Cantonese, Japanese, Vietnamese, Tamil, Indonesian, Formosan, and Norwegian.

² “Other” combined a minority of participants who identified as Aboriginal or Eurasian.

³ “University Qualification” included Bachelor degree and Advanced Diploma.

⁴ “Other” included certificate and still in high school.

⁵ “Medication” included panadol, and herbal products and supplements such as Vitamin C, B12 and D, iron tablets, multivitamins, echinacea, and probiotics.

⁶ “History of eating disorder” included Anorexia Nervosa, Bulimia Nervosa, Binge Eating Disorder, and EDNOS