Do individual, online motivational interviewing chat sessions enhance weight loss in a group‐based, online weight control program?

Objective To examine whether the addition of online motivational interviewing (MI) chats to a Web‐based, group behavioral obesity treatment program augments weight loss outcomes relative to the Web‐based weight control program alone. Methods Healthy individuals (N = 398, 24% minority) with overweigh...

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Bibliographic Details
Published in:Obesity (Silver Spring, Md.) Md.), 2016-11, Vol.24 (11), p.2334-2340
Main Authors: West, Delia Smith, Harvey, Jean R., Krukowski, Rebecca A., Prewitt, T. Elaine, Priest, Jeffrey, Ashikaga, Takamaru
Format: Article
Language:English
Subjects:
Adult
Behavior
Body Mass Index
Energy Intake
Evidence-Based Medicine
Exercise
Female
Gastrointestinal surgery
Health Behavior
Healthy Diet
Humans
Internet
Life Style
Lifestyles
Linear Models
Male
Middle Aged
Motivational Interviewing - methods
Obesity - therapy
Socioeconomic Factors
Studies
Treatment Outcome
Weight control
Weight Loss
Weight Reduction Programs
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Summary:Objective To examine whether the addition of online motivational interviewing (MI) chats to a Web‐based, group behavioral obesity treatment program augments weight loss outcomes relative to the Web‐based weight control program alone. Methods Healthy individuals (N = 398, 24% minority) with overweight/obesity were randomized to a 36‐session group Internet behavioral weight control treatment (BT) or the same group Internet treatment plus six individual MI chat sessions (BT + MI). Both conditions received weekly synchronous online chat group sessions for 6 months followed by 12 monthly group chats. Participants in both groups received identical behavioral lessons and individualized therapist feedback on progress toward meeting exercise and calorie goals. BT + MI also received six individual MI sessions delivered by a separate MI counselor via Web chat. Weight loss was measured at 6 and 18 months. Results There were no significant differences in weight loss between BT (−5.5 ± 6.0 kg) and BT + MI (−5.1 ± 6.3 kg) at 6 months or at 18 months (−3.3 ± 7.1 kg vs. −3.5 ± 7.7 kg for BT and BT + MI, respectively). Attendance at group chats did not differ between groups, nor did self‐monitoring patterns, suggesting comparable engagement in the weight control program in both conditions. Conclusions Online MI chat sessions were not a viable strategy to enhance Web‐based weight control treatment outcomes.
ISSN:1930-7381
1930-739X
DOI:10.1002/oby.21645