Abstract
Do program and participant characteristics influence people's willingness to undertake exercise programs to prevent recurrence of low back pain? Discrete choice experiment. Six hundred and forty-seven people with a recent history of low back pain. Recruitment and participation occurred online. Participants were randomised to a block of 10 choice tasks, where the characteristics of the exercise program varied systematically. The characteristics that were presented for each exercise program were mode of exercise delivery, mode of supervision, setting, duration, weekly frequency, travel time, risk of recurrence, and costs. For each choice task, participants chose between no program or an exercise program with the characteristics as presented. Choices were analysed using mixed logit models. Latent class models examined preference heterogeneity and identified participant-level characteristics predictive of preferences. There appeared to be an underlying preference for exercise compared with no exercise, all else being equal. Preferences for programs were significantly influenced by the characteristics of the programs. Participants were less likely to choose exercise when programs were of a longer duration (OR 0.92, 95% CI 0.89 to 0.96 per extra month), but more likely to prefer programs offering greater reduction in the risk of recurrence of low back pain (OR 3.91, 95% CI 3.20 to 4.79 per 10% reduction in risk of recurrence). Preferences for engaging in exercise programs to prevent recurrent of low back pain were influenced by the characteristics of the programs themselves. However, there was mismatch between the preferred characteristics of exercise programs and the characteristics of known effective programs. People who have had low back pain should be advised explicitly about which exercise programs reduce recurrence. Understanding low back pain patients' preferences can help inform the implementation of existing prevention programs and guide the design of new prevention programs.
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