Table 1.

Baseline characteristics of the whole ED sample and in each diagnostic group

Values	Whole sample N = 150 Mean (SD)	AN n = 99 Mean (SD)	BN n = 32 Mean (SD)	OSFED n = 19 Mean (SD)	F-value p-value	Bonferroni post hoc
Age (years) Range	21.7 (4.9) 16.0–46.7	21.1 (4.4) 16.0–6.5	22.0 (3.0) 17.4–29.3	24.7 (8.3) 17.1–46.7	4.52*	AN vs OSFED*
BMI Mean (SD) Range	17.9 (4.3) 11.7–41.7	15.7 (1.6) 11.7–18.5	21.3 (2.6) 17.6–30.2	23.9 (6.5) 18.7–41.7	94.85***	AN vs OSFED*** & BN vs OSFED**
Duration of illness (years) Range	5.7 (4.6) 1–28	4.9 (3.8) 1–20	5.9 (2.6) 2–10	9.7 (8.0) 2–28	9.73***	AN vs OSFED*** & BN vs OSFED**
	n (%)	n (%)	n (%)	n (%)
Main occupation
Study	94 (62.7)	64 (64.6)	20 (62.5)	10 (52.6)
Job	334 (22.7)	20 (20.2)	11 (34.4)	3 (15.8)
Other	22 (14.7)	15 (15.2)	1 (3.1)	6 (31.6)
Ability to study/work
Able to perform main occupation	35 (23.3)	26 (26.7)	5 (15.6)	4 (21.1)
Full-time sick leave	55 (36.7)	38 (38.4)	12 (37.5)	5 (26.3)
Partial sick leave	34 (22.7)	23 (23.2)	7 (21.9)	4 (21.1)
On benefits ª	22 (14.7)	10 (10.1)	7 (21.9)	5 (26.3)
Other	4 (2.6)	2 (2.0)	1 (3.1)	1 (5.3)
Any depression diagnosis (DSM-5)	73 (48.7)	42 (42.4)	18 (56.3)	13 (68.4)
Any anxiety diagnosis (DSM-5)	19 (12.7)	15 (15.2)	2 (6.3)	2 (10.5)

Notes: One-way analyses of variance (ANOVA) were performed between diagnostic groups (age, BMI and duration of illness), df (2, 147); Bonferroni post hoc test; significant relationships reported; duration of illness self-reported

Due to low numbers, three participants with a binge eating disorder diagnosis were included in the OSFED group

Abbreviations: BMI body mass index, AN anorexia nervosa, BN bulimia nervosa, OSFED other specified feeding or eating disorder, DSM-5 The Diagnostic and Statistical Manual of Mental Disorders

P value: * p < .05; ** p < .01; *** p < .001

ª Norway has a national insurance scheme. If loss of income and inability to work are caused by health impairment, Norwegian citizens are offered universal sickness and disability benefits to compensate for the loss