Longitudinal Monitoring of Patients With Chronic Low Back Pain During Physical Therapy Treatment Using the STarT Back Screening Tool

Study Design Preplanned secondary analysis of a randomized clinical trial. Background The STarT Back Screening Tool (SBST) was developed to screen and to classify patients with low back pain into subgroups for the risk of having a poor prognosis. However, this classification at baseline does not tak...

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Bibliographic Details
Published in:The journal of orthopaedic and sports physical therapy 2017-05, Vol.47 (5), p.314-323
Main Authors: Medeiros, Flávia Cordeiro, Costa, Leonardo Oliveira Pena, Added, Marco Aurélio Nemitalla, Salomão, Evelyn Cassia, Costa, Lucíola da Cunha Menezes
Format: Article
Language:English
Subjects:
Adult
Aged
Chronic Pain
Disability Evaluation
Female
Health Status Indicators
Humans
Longitudinal Studies
Low Back Pain - classification
Low Back Pain - diagnosis
Low Back Pain - therapy
Male
Mass Screening
Middle Aged
Pain Measurement
Physical Therapy Modalities
Prognosis
Prospective Studies
Randomized Controlled Trials as Topic
Risk Factors
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Summary:Study Design Preplanned secondary analysis of a randomized clinical trial. Background The STarT Back Screening Tool (SBST) was developed to screen and to classify patients with low back pain into subgroups for the risk of having a poor prognosis. However, this classification at baseline does not take into account variables that can influence the prognosis during treatment or over time. Objectives (1) To investigate the changes in risk subgroup measured by the SBST over a period of 6 months, and (2) to assess the long-term predictive ability of the SBST when administered at different time points. Methods Patients with chronic nonspecific low back pain (n = 148) receiving physical therapy care as part of a randomized trial were analyzed. Pain intensity, disability, global perceived effect, and the SBST were collected at baseline, 5 weeks, 3 months, and 6 months. Changes in SBST risk classification were calculated. Hierarchical linear regression models adjusted for potential confounders were built to analyze the predictive capabilities of the SBST when administered at different time points. Results A large proportion of patients (60.8%) changed their risk subgroup after receiving physical therapy care. The SBST improved the prediction for all 6-month outcomes when using the 5-week risk subgroup and the difference between baseline and 5-week subgroup, after controlling for potential confounders. The SBST at baseline did not improve the predictive ability of the models after adjusting for confounders. Conclusion This study shows that many patients change SBST risk subgroup after receiving physical therapy care, and that the predictive ability of the SBST in patients with chronic low back pain increases when administered at different time points. Level of Evidence Prognosis, 2b. J Orthop Sports Phys Ther 2017;47(5):314-323. Epub 29 Mar 2017. doi:10.2519/jospt.2017.7199.
ISSN:0190-6011
1938-1344
DOI:10.2519/jospt.2017.7199