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30-09-2019 | Uitgave 2/2020

Quality of Life Research 2/2020

Associations between interim patient-reported outcome measures and functional status at discharge from rehabilitation for non-specific lumbar impairments

Quality of Life Research > Uitgave 2/2020
Mark W. Werneke, Daniel Deutscher, Julie Fritz, Michael A. Kallen, Karon F. Cook, Deanna Hayes, Jerome E. Mioduski, Linda J. Woodhouse
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Identify impact of frequency and timing of interim Patient-Reported Outcome Measures (PROMs) assessments during episodes of care for rehabilitation services in outpatient clinical settings on functional status (FS) outcomes at discharge for patients with low back pain.


FS outcomes of patients who had no interim PROMs were compared to outcomes of six patient groups defined by interim timing (early, mid, late) and frequency (1, 2 or more). For each comparison, patients were matched using propensity score matching for variables known to be associated with FS outcomes and for episode duration (days) and number of visits. FS was assessed using the lumbar computerized adaptive test (LCAT) where scores range from 0 to 100 with higher scores representing better physical function.


A sample of 140,336 patients was considered for matching (mean age = 58 [SD = 17] range 18–89; 60% females) with 83,101 patients (59%) having no interim PROMs. Patients who had only one interim PROM, administered during early (first 2 weeks), mid (weeks 3–4), or late (week 5 or later) timing, had 4.6, 2.7, and 1.0 additional FS score points at discharge compared to those without an interim PROM, respectively (p < 0.001). Having two or more interim PROMs was associated with an additional 1.2 FS points compared to having only one interim assessment, but only if the first interim was administered early.


Optimal utilization of interim PROM assessment during clinical practice to enhance treatment outcomes was related to administering the first interim PROM within the first 2 weeks after the initial evaluation.

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