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Table 9 Summary of statistically significant associations between weight history indices and treatment changes

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

IndexBMIEating disorder psychopathologyBulimic symptomsSlimness idealCompensatory behaviors
Highest weight +**+*+*+*
Lowest weight***+** +***+**
Highest BMI+**+**+*  
Lowest BMI*+** +***+**
Highest BMI percentage+*+**+**  
Lowest BMI percentage**+** +***+**
WS+***+**+*+* 
WE**** ****
BMI suppression+***+**+*  
BMI elevation*****  **
BMI suppression percentage+***+**+**+** 
BMI elevation percentage***** *****
BMI oscillation+***    
PWC+***+**+*+**
Residual 1***    
Residual 2+**+**+*+* 
Residual 3***    
Residual 4+*+* +***+*
h-AFW +**+***  
l-AFW***+* +**+*
Age at highest weight ****  
Age at lowest weight ******* 
Years since highest weight ** *****
  1. Note. No statistically significant association with “years since lowest weight”. The signs of the three best predictors based on β for each outcome in boldface
  2. 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
  3. *Statistically significant at p = 0.05, ** at p = 0.01, and *** at p < 0.001. + = higher index values associated with more pronounced improvement, − = higher index values associated with less pronounced improvement