Cost-Effectiveness of Primary Care Management With or Without Early Physical Therapy for Acute Low Back Pain: Economic Evaluation of a Randomized Clinical Trial.
METHODS
Economic evaluation of a randomized clinical trial.


OBJECTIVE
Compare costs and cost-effectiveness of usual primary care management for patients with acute low back pain (LBP) with or without the addition of early physical therapy.


BACKGROUND
Low back pain is among the most common and costly conditions encountered in primary care. Early physical therapy after a new primary care consultation for acute LBP results in small clinical improvement but cost-effectiveness of a strategy of early physical therapy is unknown.


METHODS
Economic evaluation was conducted alongside a randomized clinical trial of patients with acute, nonspecific LBP consulting a primary care provider. All patients received usual primary care management and education, and were randomly assigned to receive four sessions of physical therapy or usual care of delaying referral consideration to permit spontaneous recovery. Data were collected in a randomized trial involving 220 participants age 18 to 60 with LBP <16 days duration without red flags or signs of nerve root compression. The EuroQoL EQ-5D health states were collected at baseline and after 1-year and used to compute the quality adjusted life year (QALY) gained. Direct (health care utilization) and indirect (work absence or reduced productivity) costs related to LBP were collected monthly and valued using standard costs. The incremental cost-effectiveness ratio was computed as incremental total costs divided by incremental QALYs.


RESULTS
Early physical therapy resulted in higher total 1-year costs (mean difference in adjusted total costs = $580, 95% CI: $175, $984, P = 0.005) and better quality of life (mean difference in QALYs = 0.02, 95% CI: 0.005, 0.35, P = 0.008) after 1-year. The incremental cost-effectiveness ratio was $32,058 (95% CI: $10,629, $151,161) per QALY.


CONCLUSIONS
Our results support early physical therapy as cost-effective relative to usual primary care after 1 year for patients with acute, nonspecific LBP.


METHODS
2.
Research College of Health, Department of Physical Therapy, University of Utah, Salt Lake City, UT.
Julie M
JM
Fritz
Department of Physical Therapy, University of Utah, Salt Lake City, UT.
Minchul
M
Kim
Center for Outcomes Research, Department of Medicine, University of Illinois College of Medicine at Peoria, Peoria, IL.
John S
JS
Magel
Department of Physical Therapy, University of Utah, Salt Lake City, UT.
Carl V
CV
Asche
D000328:Adult; D003362:Cost-Benefit Analysis; D005260:Female; D017048:Health Care Costs / Q000706:statistics & numerical data*; D006801:Humans; D017116:Low Back Pain / Q000628:therapy*; D008297:Male; D008875:Middle Aged; D010808:Physical Examination / Q000191:economics; D026741:Physical Therapy Modalities / Q000191:economics*; D011320:Primary Health Care / Q000191:economics* / Q000379:methods; D011788:Quality of Life; D019057:Quality-Adjusted Life Years; D016032:Randomized Controlled Trials as Topic; D055502:Secondary Prevention / Q000191:economics*