Related Experiment Video
Updated: Feb 24, 2026

Control of Eating Behavior Using a Novel Feedback System
Published on: May 8, 2018
Trajectories of Change in Body Weight During Inpatient Treatment for Anorexia Nervosa
Karen M Jennings1, Matthew Gregas2, Barbara Wolfe3
11 Karen M. Jennings, PhD, RN, PMHNP-BC, University of Chicago, Chicago, IL, USA.
Background:
Identifying distinct trajectories of change in body weight during inpatient treatment for anorexia nervosa (AN) may provide knowledge about the process of weight restoration and may help detect optimal body weight response patterns among individuals who are at risk for not achieving weight restoration or leaving treatment prematurely.
Objective:
This study explored the extent to which distinct trajectories of change in body weight existed among individuals during inpatient treatment for AN.
Design:
Group-based trajectory modeling was used to identify distinct trajectories of change in body weight among 500 individuals receiving inpatient treatment for AN.
Results:
Four distinct trajectories were identified: weight gain ( n = 197), treatment resistant ( n = 177), weight plateau ( n = 82), and weight fluctuate ( n = 44).
Conclusion:
Clinically, it is important to consider the heterogeneity of changes in body weight during inpatient treatment to help guide interventions and outcomes.
Related Concept Videos
Anorexia Nervosa
Symptoms and Physical Effects
Individuals with anorexia nervosa commonly exhibit extreme...
Bulimia Nervosa
Binge Eating Disorders
Regression Toward the Mean
Drug Dosing: Obese Patients
Classification of Illness
An illness is a response to a disease in which the person's level of functioning is changed compared with a previous level. The general classification of illness includes acute and chronic.
Acute illness is severe...

