Poster Presentation Australian & New Zealand Obesity Society 2015 Annual Scientific Meeting

Predictors of continuing attendance at an outpatient weight management clinic (#279)

Priya Sumithran 1 , Luke A Prendergast 2 , Abang Samatan 1 , Joseph Proietto 1
  1. University of Melbourne, Austin Health, Heidelberg , Vic , Australia
  2. La Trobe University, Department of Mathematics and Statistics, Bundoora, Australia

Background: There is a high rate of attrition from weight loss programs. We reviewed data from patients who commenced a very-low-energy diet (VLED)-based program at a tertiary hospital outpatient multidisciplinary weight management clinic to identify factors associated with continuing attendance over 3 years.

Methodology: Medical records of all patients whose first clinic appointment was between February 2004 and December 2009, and who agreed to undertake the VLED program were examined in this review of 3 year outcomes.  Baseline data collected included demographic and anthropometric characteristics, childhood onset of obesity, and co-existing medical conditions.  Logistic regression analyses were used to model the probability of continuing to attending the clinic at various time points and to identify pre-treatment factors associated with longer duration of attendance over 3 years.

Results: 1109 patients were included in the review.  The median duration of clinic attendance was 248 days.  922 patients (83.1%) returned for at least one follow-up visit, and 466 (42.0%) and 213 (19.2%) were still attending 1 and 3 years respectively after their initial appointment.  People who had an onset of obesity in childhood, who had co-existing hypertension or coronary artery disease, and who did not currently smoke were more likely to continue to attend the clinic for up to 3 years.

Summary: The majority of patients who commenced an outpatient VLED-based weight loss program stopped attending the clinic within 12 months.  An onset of obesity in childhood, the presence of weight-related medical conditions, and a non-smoking status predicted a longer duration of attendance.