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Abstract

Objectives: To examine the predictive validity, minimal important difference (MID)and responsiveness of the PRAISE tool.Design: Retrospective data analysis from HomeBase trial of home versus centrebased pulmonary rehabilitation.Setting: Tertiary health service.Participants: One hundred and sixty-six participants with COPD (100 men) withmean age 69 (standard deviation 9) years, FEV1% predicted 50% (19).Interventions: Eight-week pulmonary rehabilitation program, conducted at thehospital or at home.Main Outcome Measures: The 15-item PRAISE tool comprising 10 general and 5 pulmonary rehabilitation-specific self-efficacy questions. Predictive validity wasexamined by exploring the relationship between baseline PRAISE score andobjective change in physical activity following pulmonary rehabilitation using theSenseWear Armband. The MID was evaluated using anchor-based and distributionbasedmethods. Responsiveness was assessed with effect sizes.Results: A higher baseline PRAISE score (indicating better self-efficacy) was anindependent predictor of reduced sedentary time following pulmonary rehabilitation(p=0.03). A one point increase in PRAISE was associated with a decrease insedentary time of 4 minutes/day (95% confidence interval -7.8 to -0.4 minutes/day.Anchor-based estimates of the MID were 0.5 to 1.5 points; however sensitivity andspecificity were modest (area under the curve Conclusions: The PRAISE tool has predictive validity and may be useful to identify those with high self-efficacy who are more likely to achieve important healthbehaviour changes with pulmonary rehabilitation. The small effect size suggests thatthe PRAISE tool was not responsive to changes following pulmonary rehabilitation.

Item Type:	Article
Authors/Creators:	Liacos, A and McDonald, CF and Mahal, A and Hill, CJ and Lee, AL and Burge, AT and Moore, R and Nicolson, C and O'Halloran, P and Cox, NS and Lahham, A and Gilles, R and Holland, AE
Keywords:	physical activity, pulmonary disease, chronic obstructive, self-efficacy, health behaviour
Journal or Publication Title:	Physiotherapy
Publisher:	Elsevier Ltd
ISSN:	0031-9406
DOI / ID Number:	https://doi.org/10.1016/j.physio.2018.07.009
Copyright Information:	© 2018 Published by Elsevier Ltd on behalf of Chartered Society of Physiotherapy.
Related URLs:	Google Scholar: Lahham, A
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