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Table 1 Demographic and clinical characteristics of the participants per group (full and partial relapse vs. non-relapse) including outcome univariate Cox regression

From: Rate, timing and predictors of relapse in patients with anorexia nervosa following a relapse prevention program: a cohort study

Variable

Full and partial relapse group

(n = 25)

Non relapse group

(n = 58)

Univariate Cox regression

p value

Univariate Cox regression

Exp(B)

Onset eating disorder (years)

15.1

14.1

0.440

1.034

Duration of the eating disorder (years)

3.7

3.4

0.447

1.055

Duration of treatment before the aftercare-program (months)

25.6

16.2

0.007*

1.028

BMI at start treatment (kg/m2)

16.3

16.4

0.621

0.954

BMI at start of aftercare program

19.9

20.0

0.776

0.965

BMI at the end of aftercare program

19.9

20.4

0.166

0.865

Age 18 years or younger

22,4 % (n = 13)

77,6 % (n = 45)

/

/

Age 19 years or older

48 % (n = 12)

52 % (n = 13)

0.034*

2.344

Subtype ANBP

23.1 % (n = 3)

76.9 % (n = 10)

/

/

Subtype ANR

31.4 % (n = 22)

68.6 % (n = 48)

0.709

1.259

Type of treatment before the aftercare-program (patients received only outpatient treatment)

32 % (n = 8)

56,9 % (n = 33)

/

/

Type of treatment before the aftercare-program (patients received in- and outpatient treatment)

68 % (n = 17)

43.1 % (n = 25)

0.039*

2.425

Severity eating disorder DSM 5: Mild

16 % (n = 4)

12.1 % (n = 7)

0.764

1.179

Severity eating disorder DSM 5: Moderate

12 % (n = 3)

20.7 % (n = 12)

0.321

0.543

Severity eating disorder DSM 5: Severe

8 % (n = 2)

13.8 % (n = 8)

0.447

0.571

Severity eating disorder DSM 5: Extreme

64 % (n = 16)

53.4 % (n = 31)

0.266

1.591

Comorbidity

52 % (n = 13)

51.7 % (n = 30)

0.948

1.027

Anxiety disorder

0 % (n = 0)

6.9 % (n = 4)

0.458

0.046

Depressive disorder

24 % (n = 6)

8.6 % (n = 5)

0.151

1.963

Dysthymia

0 % (n = 0)

5.2 % (n = 3)

0.515

0.047

Obsessive compulsive disorder

0 % (n = 0)

6.9 % (n = 4)

0.426

0.046

Parent-child Relational Problem

24 %(n = 6)

19 % (n = 11)

0.363

1.533

Autism

0 % (n = 0)

1.7 % (n = 1)

0.660

0.048

Personality disorder

8 % (n = 2)

10.3 % (n = 6)

0.730

0.775

  1. BMI body mass index, ANR anorexia nervosa restrictive, ANBP anorexia nervosa binge purge
  2. *statistically significant