Utilization and Potential Disparities in Access to Physical Therapy for Spine Pain in the Long-Term Care Population.

The study is descriptive and cross-sectional, so it cannot show that any factor caused lower or higher physical therapy use. Spine pain histories were based on claims from 1 to 3 years before long-term care entry, so some residents may not have had current spine pain at the time physical therapy was assessed. Claims did not measure spine pain severity, dementia severity, or functional impairment, so the study could not tell whether lower physical therapy use was clinically appropriate or related to provider assumptions. The analysis did not include Medicare assessment files, so it could not examine pain or function outcomes after physical therapy. It excluded HMO plans and used only Medicare fee-for-service data, while many beneficiaries are now in Medicare Advantage plans. It could not link residents to nursing home identifiers, staffing, facility profit status, or local physical therapy availability. The data did not include robust family or caregiver support information. The analysis used 992,995 of the 999,495 residents with spine pain diagnoses because some lacked complete covariates. Physical therapy episodes coded for mobility or weakness may still have addressed spine pain, so the spine-specific rate may understate spine pain care.

The article is listed as NIH extramural research support. All authors reported no conflicts of interest.

Do not read the 49.7% physical therapy use as evidence that spine pain was being treated. Only 12.1% of residents who received physical therapy had spine pain coded as the main reason, and the study did not measure pain or function outcomes.