Ellen E Fitzsimmons-Craft1, Dawn M Eichen2, Andrea E Kass3, Mickey Trockel4, Ross D Crosby5,6, C Barr Taylor4,7, Denise E Wilfley8. 1. Department of Psychiatry, Washington University School of Medicine, Campus Box 8134, 660 S. Euclid Ave., St. Louis, MO, 63110, USA. fitzsimmonscrafte@psychiatry.wustl.edu. 2. Department of Pediatrics, University of California, 8950 Villa La Jolla Dr., Suite C-203, San Diego, CA, 92037, USA. 3. Department of Psychiatry and Behavioral Neuroscience, The University of Chicago, 5841 S. Maryland Ave., MC 1000, Chicago, IL, 60637, USA. 4. Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, 401 Quarry Rd., Stanford, CA, 94305, USA. 5. Neuropsychiatric Research Institute, 120 S. 8th St., Box 1415, Fargo, ND, 58107, USA. 6. Department of Psychiatry and Behavioral Science, University of North Dakota School of Medicine & Health Sciences, Fargo, ND, USA. 7. Center for m2Health, Palo Alto University, Palo Alto, CA, USA. 8. Department of Psychiatry, Washington University School of Medicine, Campus Box 8134, 660 S. Euclid Ave., St. Louis, MO, 63110, USA.
Abstract
PURPOSE: Understanding how known eating disorder (ED) risk factors change in relating to one another over time may inform efficient intervention targets. We examined short-term (i.e., 1 month) reciprocal longitudinal relations between weight/shape concern and comorbid symptoms (i.e., depressed mood, anxiety) and behaviors (i.e., binge drinking) over the course of 24 months using cross-lagged panel models. METHODS:Participants were 185 women aged 18-25 years at very high risk for ED onset, randomized to anonline ED preventive intervention or waitlist control. We also tested whether relations differed based on intervention receipt. RESULTS: Weight/shape concern in 1 month significantly predicted depressed mood the following month; depressed mood in 1 month also predicted weight/shape concern the following month, but the effect size was smaller. Likewise, weight/shape concern in 1 month significantly predicted anxiety the following month, but the reverse was not true. Results showed no temporal relations between weight/shape concern and binge drinking in either direction. Relations between weight/shape concern, and comorbid symptoms and behaviors did not differ based on intervention receipt. CONCLUSIONS: Results support focusing intervention on reducing weight/shape concern over reducing comorbid constructs for efficient short-term change. LEVEL OF EVIDENCE: Level I, evidence obtained from a properly designed randomized controlled trial.
RCT Entities:
PURPOSE: Understanding how known eating disorder (ED) risk factors change in relating to one another over time may inform efficient intervention targets. We examined short-term (i.e., 1 month) reciprocal longitudinal relations between weight/shape concern and comorbid symptoms (i.e., depressed mood, anxiety) and behaviors (i.e., binge drinking) over the course of 24 months using cross-lagged panel models. METHODS:Participants were 185 women aged 18-25 years at very high risk for ED onset, randomized to an online ED preventive intervention or waitlist control. We also tested whether relations differed based on intervention receipt. RESULTS: Weight/shape concern in 1 month significantly predicted depressed mood the following month; depressed mood in 1 month also predicted weight/shape concern the following month, but the effect size was smaller. Likewise, weight/shape concern in 1 month significantly predicted anxiety the following month, but the reverse was not true. Results showed no temporal relations between weight/shape concern and binge drinking in either direction. Relations between weight/shape concern, and comorbid symptoms and behaviors did not differ based on intervention receipt. CONCLUSIONS: Results support focusing intervention on reducing weight/shape concern over reducing comorbid constructs for efficient short-term change. LEVEL OF EVIDENCE: Level I, evidence obtained from a properly designed randomized controlled trial.
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