Sensor-based measures of knee brace adherence have low agreement with self-report methods: A multi-measure study among knee osteoarthritis patients.
Michael J Callaghan, David T Felson, Melanie A Holden et al.
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In 30 seconds
This study investigated the agreement between self-reported and sensor-based measures of knee brace adherence in 60 patients with knee osteoarthritis, nested within a larger randomized controlled trial. Results showed that at 12 weeks, self-reports indicated 83% adherence, while sensor data revealed only 60% and 58% adherence at 24°C and 25°C thresholds, respectively. The study highlights significant discrepancies between self-reported and objective measures of brace use.
Key findings
- At 12 weeks, self-reports indicated 83% adherence, while sensor data showed only 60% adherence.
- At 26 weeks, self-reported adherence dropped to 72%, compared to 43% from sensor data.
- Agreement between self-report measures was higher than with sensor data, with 92% agreement between SRQ and SMS at 12 weeks.
Why it matters
Understanding the discrepancies between self-reported and objectively measured adherence to knee braces is crucial for clinicians. Accurate assessment of brace use can influence treatment efficacy evaluations and patient management strategies in knee osteoarthritis.