Abstract
Objective
The purpose of this study was to assess if group size is associated with weight loss
outcomes among participants in an adapted diabetes prevention program.
Methods
Adults at high-risk (N = 841) for CVD and diabetes were enrolled in the lifestyle intervention in 2011. Multiple
logistic regression analyses were used to identify if group size (smaller group < 16 participants; larger group ≥16 participants) was independently associated with
weight loss outcomes among participants.
Results
In the bivariate analyses, participants in the smaller groups compared to those in
the larger groups were significantly more likely to have a higher baseline body mass
index, to attend fewer intervention sessions, and less likely to self-monitor their
fat intake for ≥14 weeks, and to have lost less weight during the core intervention
(5.1 kg [SD 4.7] versus 5.8 kg [4.5]). However, analysis adjusting for age, sex, baseline BMI, achievement of
the physical activity goal, number of weeks self-monitoring fat intake, and group
size, found only two factors to be independently associated with achievement of the
7% weight loss goal: frequency of self-monitoring of fat intake and achievement of
the physical activity goal.
Conclusions
Our findings indicate that intensive lifestyle intervention goals can be achieved
as effectively with large or small groups.
Keywords
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Article info
Publication history
Published online: March 13, 2014
Accepted:
February 16,
2014
Received in revised form:
February 14,
2014
Received:
July 29,
2013
Identification
Copyright
© 2014 Primary Care Diabetes Europe. Published by Elsevier Inc. All rights reserved.
