• Soares OliveiraIndiaraIMasters and Doctoral Programs in Physical Therapy, Universidade Cidade de São Paulo, São Paulo, SP, Brazil., Tatiane da Silva, CostaLeonardo Oliveira PenaLOPMasters and Doctoral Programs in Physical Therapy, Universidade Cidade de São Paulo, São Paulo, SP, Brazil., Flávia Cordeiro Medeiros, OshimaRenan Kendy AnaniasRKAMasters and Doctoral Programs in Physical Therapy, Universidade Cidade de São Paulo, São Paulo, SP, Brazil., de FreitasDiego GalaceDGDepartment of Physical Therapy, Irmandade Santa Casa de Misericórdia de São Paulo, São Paulo, SP, Brazil., Thiago Yukio Fukuda, and CostaLucíola da Cunha MenezesLDCMMasters and Doctoral Programs in Physical Therapy, Universidade Cidade de São Paulo, São Paulo, SP, Brazil..
• Masters and Doctoral Programs in Physical Therapy, Universidade Cidade de São Paulo, São Paulo, SP, Brazil.
• J Pain. 2021 Nov 1; 22 (11): 1497-1505.

AbstractMost studies investigating the course of recent-onset low back pain (LBP) included patients from primary care. We aimed to describe the prognosis in people with recent-onset LBP presenting to emergency departments (EDs) and to identify prognostic factors for nonrecovery. This inception cohort study with a 1-year follow-up recruited 600 consecutive acute LBP patients presenting to 4 EDs. The outcomes measured the days to recover from pain, recover from disability, return to previous work hours and duties, and complete recovery. Within 12 months, 73% of participants (95% confidence interval [CI] = 69-77) recovered from pain, 86% (95% CI = 82-90) recovered from disability, 79% (95% CI = 71-87) returned to previous work hours and duties, and 70% (95% CI = 66-74) completely recovered. The median recovery times were 67 days (95% CI = 54-80) to recover from pain, 37 days (95% CI = 31-43) to recover from disability, 37 days (95% CI = 25-49) to return to previous work hours and duties, and 70 days (95% CI = 57-83) to recover completely. Higher pain levels, a higher perceived risk of persistent LBP, more days of reduced activity due to LBP, more pain sites, and higher duration of LBP were associated with complete nonrecovery within 6 months. PERSPECTIVE: This information relates to prognosis and to likely recovery times for patients with recent-onset LBP in EDs. The findings also confirm previous factors associated with poor outcomes in patients with recent-onset LBP.Copyright © 2021 United States Association for the Study of Pain, Inc. Published by Elsevier Inc. All rights reserved.

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