Obesity Moderates the Effects of Motivational Interviewing Treatment Outcomes in Fibromyalgia.

ABSTRACT:

Objective

Obesity is a common comorbid condition among patients with fibromyalgia (FM). Our objective was to assess if obesity moderates the treatment benefits of exercise-based motivational interviewing (MI) for FM.

Materials and methods

This is a secondary data analysis of a completed clinical trial of 198 FM patients who were randomized to receive either MI or attention control (AC). Using body mass index (BMI) to divide participants into obese (BMI≥30 kg/m) and nonobese (BMI<30 kg m) groups, mixed linear models were used to determine interaction between treatment arms and obesity status with regards to the primary outcome of global FM symptom severity (Fibromyalgia Impact Questionnaire, FIQ). Secondary measures included pain intensity (Brief Pain Inventory), 6-Minute Wal

SUBMITTER: Kaleth AS 

PROVIDER: S-EPMC5831245 | biostudies-literature | 2018 Jan

REPOSITORIES: biostudies-literature