Abstract
The objective of this study was to determine the patient-reported outcome measure (PROM) score ranges associated with descriptive labels (i.e., within normal limits, mild, moderate, severe) by using bookmarking methods with orthopedic clinicians and patients who have experienced a bone fracture.
We created vignettes comprised of six items and responses from the Patient-Reported Outcomes Measurement Information System (PROMIS) Upper Extremity Function, Physical Function, and Pain Interference item banks reflecting different levels of severity. Two groups of patients with fractures (n = 11) and two groups of orthopedic clinicians (n = 16) reviewed the vignettes and assigned descriptive labels independently and then discussed as a group until reaching consensus via a videoconference platform.
PROMIS Physical Function and Pain Interference thresholds (T = 50, 40, 25/30 and T = 50/55, 60, 65/70, respectively) for patients with bone fractures were consistent with the results from other patient populations. Upper Extremity thresholds were about 10 points (1 SD) more severe (T = 40, 30, 25/20) compared to the other measures. Patient and clinician perspectives were similar.
Bookmarking methods generated meaningful score thresholds for PROMIS measures. These thresholds between severity categories varied by domain. Threshold values for severity represent important supplemental information to interpret PROMIS scores clinically.