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Osteoarthritis Cartilage. 2016 Jan;24(1):99-107. doi: 10.1016/j.joca.2015.07.024. Epub 2015 Aug 4.

Impact of patient decision aids on appropriate and timely access to hip or knee arthroplasty for osteoarthritis: a randomized controlled trial.

Author information

1
University of Ottawa, Faculty of Health Sciences, Canada; Ottawa Hospital Research Institute, Clinical Epidemiology Program, Canada. Electronic address: dstacey@uottawa.ca.
2
Ottawa Hospital Research Institute, Clinical Epidemiology Program, Canada; University of Ottawa, Department of Epidemiology and Community Medicine, Canada. Electronic address: mtaljaard@ohri.ca.
3
Ottawa Hospital Research Institute, Clinical Epidemiology Program, Canada. Electronic address: gdervin@toh.on.ca.
4
Ottawa Hospital Research Institute, Clinical Epidemiology Program, Canada; University of Ottawa, Department of Epidemiology and Community Medicine, Canada. Electronic address: Tugwell.BB@uottawa.ca.
5
University of Ottawa, Faculty of Health Sciences, Canada. Electronic address: Annette.OConnor@uottawa.ca.
6
University of Montréal, School of Public Health, Canada. Electronic address: marie-pascale.pomey@umontreal.ca.
7
University of Ottawa, Faculty of Health Sciences, Canada. Electronic address: lbola072@uottawa.ca.
8
Ottawa Hospital Research Institute, Clinical Epidemiology Program, Canada. Electronic address: sbeach@ohri.ca.
9
University of Chicago, Department of Medicine, USA. Electronic address: dmeltzer@medicine.bsd.uchicago.edu.
10
University of Toronto, Faculty of Medicine and Women's College Hospital, Canada. Electronic address: g.hawker@utoronto.ca.

Abstract

OBJECTIVE:

To evaluate the effectiveness of patient decision aids (PtDA) compared to usual education on appropriate and timely access to total joint arthroplasty in patients with osteoarthritis.

METHOD:

A randomized controlled trial (RCT) with patients undergoing orthopedic screening. Control and intervention arms received usual education; intervention arm also received a PtDA and a surgeon preference report. Wait times (primary outcome) were described using stratified Kaplan-Meier survival curves with patients censored at the time of death or loss to follow-up, and multivariable Cox proportional hazards regression. Secondary outcomes were compared using stratified Cochran-Mantel-Haenszel chi-squared tests.

RESULTS:

343 patients were randomized to intervention (n = 174) or control (n = 169). The typical patient was 66 years old, retired, living with someone, and 51% had high school education or less. The intervention was associated with a trend towards reduction in wait time (hazard ratio (HR) 1.25, 95% confidence interval (CI) 0.99-1.60, P = 0.0653). Median wait times were 3 weeks shorter in intervention than in control at the community site with no difference at the academic site. Good decision quality was reached by 56.1% intervention and 44.5% control (Relative risk (RR) 1.25; 95% CI 1.00-1.56, P = 0.050). Surgery rates were 73.2% intervention and 80.5% controls (RR 0.91: 95% CI 0.81-1.03) with 12 intervention (7.3%) and eight control participants (4.9%) returning to have surgery within 2 years (P = 0.791).

CONCLUSION:

Compared to controls, decision aid recipients had shorter wait times at one site, fewer surgeries, and were more likely to reach good decision quality, but overall effect was not statistically significant.

TRIALS REGISTRATION:

The full trial protocol is available at ClinicalTrials.Gov (NCT00911638).

KEYWORDS:

Joint arthroplasty; Osteoarthritis; Patient decision aid; Randomized controlled trial; Shared decision making

PMID:
26254238
DOI:
10.1016/j.joca.2015.07.024
[Indexed for MEDLINE]
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