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Table 5 Adjusted influence of weight history indices on changes in eating disorder psychopathology (SIAB-S total score) during inpatient treatment. Results of the multiple linear regression analyses

From: Dimensions within 24 weight history indices and their association with inpatient treatment outcome in adults with anorexia nervosa: analysis of routine data

Predictor

Cor. R2

B (SE), 95% CI

T, p

β

Highest weight

0.047

0.005 (0.002), 0.002; 0.008

2.99, 0.003

0.107

Lowest weight

0.048

0.011 (0.004), 0.004; 0.018

3.12, 0.002

0.134

Highest BMI

0.045

0.014 (0.005), 0.004; 0.024

2.76, 0.006

0.098

Lowest BMI

0.049

0.043 (0.013), 0.017; 0.069

3.29, 0.001

0.156

Highest BMI percentage

0.048

0.324 (0.102), 0.123; 0.525

3.17, 0.002

0.112

Lowest BMI percentage

0.049

0.973 (0.297), 0.389; 1.557

3.27, 0.001

0.160

WS

0.046

0.005 (0.002), 0.002; 0.009

2.85, 0.004

0.107

WE

0.044

−0.012 (0.005), − 0.021; − 0.003

−2.55, 0.011

− 0.094

BMI suppression

0.045

0.014 (0.005), 0.004; 0.024

2.76, 0.006

0.104

BMI elevation

0.049

−0.043 (0.013), − 0.069; − 0.017

−3.29, 0.001

− 0.123

BMI suppression percentage

0.048

0.325 (0.102), 0.125; 0.526

3.18, 0.002

0.119

BMI elevation percentage

0.049

−0.990 (0.298), −1.575; − 0.404

−3.17, 0.001

−0.123

BMI oscillation

0.038

0.007 (0.005), −0.003; 0.018

1.46, 0.144

0.053

PWC

0.049

0.592 (0.183), 0.233; 0.951

3.24, 0.001

0.183

Residual 1

0.036

0.000 (0.006), −0.011; 0.011

−0.03, 0.979

− 0.002

Residual 2

0.046

0.005 (0.002), 0.002; 0.008

2.83, 0.005

0.101

Residual 3

0.040

−0.011 (0.006), − 0.022; 0.000

−1.90, 0.058

−0.081

Residual 4

0.046

0.013 (0.005), 0.004; 0.022

2.84, 0.004

0.100

h-AFW

0.047

0.003 (0.001), 0.001; 0.004

2.99, 0.003

0.105

l-AFW

0.042

0.006 (0.003), 0.001; 0.011

2.24, 0.025

0.094

Age at highest weight

0.043

−0.007 (0.003), −0.013; − 0.001

−2.34, 0.020

−0.083

Age at lowest weight

0.059

−0.009 (0.002), − 0.013; − 0.005

−4.33, <  0.001

−0.152

Years since highest weight

0.049

−0.007 (0.002), − 0.012; − 0.003

−3.25, 0.001

−0.114

Years since lowest weight

0.036

−0.001 (0.003), − 0.007; 0.005

−0.38, 0.702

− 0.014

  1. Note. Regression coefficients are adjusted for length of stay and admission body mass index. Corrected R2 = 0.037 for the regression model with only length of stay and admission body mass index as predictors. Three best predictors based on β in boldface
  2. SIAB-S Structured Inventory for Anorexic and Bulimic Disorders for DSM-IV and ICD-10 – Self-Rating, Cor. R2 corrected R2, BMI body mass index, WS weight suppression, WE weight elevation, PWC percentage weight change, Residual 1 highest on admission weight, Residual 2 admission on highest weight, Residual 3 lowest on admission weight, Residual 4 admission on lowest weight, h-AFW highest age-factored weight, l-AFW lowest age-factored weight