Pilot Study Examining Feasibility and Comparing the Effectiveness of Decision Aids for Hip and Knee Osteoarthritis: A Randomized Trial

Pilot Study Examining Feasibility and Comparing the Effectiveness of Decision Aids for Hip and Knee Osteoarthritis: A Randomized Trial

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Background.There are many patient decision aids (DAs) available, yet there is limited evidence on comparative effectiveness of different tools.Objective.To examine feasibility of a study protocol and gather preliminary data on comparative effectiveness.

Methods.Adult patients seeing a surgeon to discuss treatment for hip or knee osteoarthritis were randomized to hip and knee DAs from Jeans two vendors.Pre-visit survey included Hip/Knee Decision Quality Instrument, DA usage, health literacy, and quality of life (EQ-5D).Surgical status was ascertained 6 months post-visit.

We examined response rates, eligibility, and compared the two DAs on amount of use, knowledge scores, and receipt of preferred treatment.Results.Overall response rate was 58/74 (78%) and did not differ by study arm.More patients in DA-A group reported reviewing all the DAs (64.

5% DA-A v.24.0% DA-B, P = 0.003).

Knowledge scores were similar across arms (55.2% DA-A v.48.8% DA-B, P = 0.

4).For DA-B, knowledge scores were higher for those who reviewed all the DAs compared with those who did not (80% knowledge v.39% knowledge, respectively, P = 0.004), while scores for DA-A did not vary by usage (62% knowledge v.

53% knowledge, respectively, P = 0.3).A similar percentage of each group received their preferred treatment (77% v.73%, P = 0.

8).Patients who were unsure about preferred treatment at baseline were more likely to have surgery in the DA-A arm compared with the DA-B arm (55% v.20%, P = 0.1).

Limitations.Small sample; patients were only surveyed pre-visit.Conclusion.Despite turbosound ts-18sw700/8a having different content and formats, the two DAs had similar overall effectiveness.

Patients were more likely to review all of DA-A; however, patients who reviewed all of DA-B had the highest knowledge scores.