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
Blog Article
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 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 Queen Upholstered Bed 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 Face Mirrors 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 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.