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Table 3 Stepwise linear regression analysis on the length of stay in AN inpatients (N = 135)

From: Factors influencing the length of hospital stay of patients with anorexia nervosa – results of a prospective multi-center study

Dependent Variable

Predictors

b

95% CI

SE

t

p

F

p

Adj. R2

Length of Stay

Admission BMI

−1.66

[−2.15, −1.18]

.245

−6.78

<.001

16.39

<.001

.365

Center HH

−4.91

[−7.73, −2.09]

1.427

−3.44

.001

   

Center P

2.34

[0.70, 3.98]

.827

2.83

.005

   

Purging subtype

1.91

[0.41, 3.40]

.754

2.53

.013

   

Asceticism

0.12

[0.01, 0.23]

.054

2.19

.030

   
  1. CI Confidence interval, SE Standard error, center HH Hamburg Eilbek, center P Prien. The base level of the categorical variable center was: Bad Bramstedt (BB). Length of stay (LOS) is specified in weeks. The included non-influential variables were age, age of onset, living situation, partnership status, education (base level: primary education), previous hospitalization, self-rated depression, anxiety and somatic symptoms (PHQ-9, PHQ-15, GAD-7), self-rated therapy motivation (FEVER) and the EDI-2 subscale scores on drive for thinness, bulimia, body dissatisfaction, ineffectiveness, perfectionism, interpersonal distrust, interoceptive awareness, maturity fears, impulse regulation, and social insecurity