Evaluating a Decision Quality Instrument for Hip and Knee Osteoarthritis Treatment
Author Information
Author(s): Karen R. Sepucha, Dawn Stacey, Catharine F. Clay, Yuchiao Chang, Carol Cosenza, Geoffrey Dervin, Janet Dorrwachter, Sandra Feibelmann, Jeffrey N. Katz, Stephen A. Kearing, Henrik Malchau, Monica Taljaard, Ivan Tomek, Peter Tugwell, Carrie A. Levin
Primary Institution: Massachusetts General Hospital (MGH), Harvard Medical School (HMS)
Hypothesis
The study aims to evaluate the psychometric properties and clinical sensibility of a patient self-report instrument for measuring decision quality in total joint replacement for knee or hip osteoarthritis.
Conclusion
The Hip/Knee Osteoarthritis Decision Quality Instrument (HK-DQI) is feasible and acceptable to patients, effectively assessing whether they are making informed decisions about surgery that align with their goals.
Supporting Evidence
- The HK-DQI was completed by 382 patients (79%) and 45 providers (58%) in study 1.
- In study 2, 127 patients (92%) completed the HK-DQI with low rates of missing data.
- The DQI-knowledge score demonstrated discriminant validity with significant differences between decision aid and control groups.
Takeaway
This study created a tool to help patients with hip and knee osteoarthritis make better decisions about surgery by understanding their options and goals.
Methodology
The study evaluated the HK-DQI using a cross-sectional mail survey and a randomized controlled trial with patients considering total joint replacement.
Potential Biases
Potential bias in self-reported data and the convenience sampling method used for participant selection.
Limitations
The study may not generalize to non-White populations and those with limited literacy; retrospective data may not reflect patients' knowledge at the time of decision-making.
Participant Demographics
{"gender":{"male_percentage":44,"female_percentage":56},"age_mean":62.7,"race":{"white_percentage":95.5},"education":{"college_graduate_percentage":56,"high_school_or_less_percentage":18.1}}
Statistical Information
P-Value
p<0.001
Confidence Interval
95% CI (13% to 25%)
Statistical Significance
p<0.001
Digital Object Identifier (DOI)
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