Early Predictors of Delayed Return to Work in Patients with Low Back Pain

Nordin, Margareta; Skovron, Mary Louise; Hiebert, Rudi; Weiser, Sherri; Brisson, Paul; Campello, Marco; Harwood, Kenneth; Crane, Michael; Lewis, Stuart

doi:10.1300/j094v05n02_02

Cited by 53 publications

(31 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For purpose 1, validity of QTFC and PPC was assessed using intake data to differentiate patients by pain intensity (0 -5ϭlow, 6 -10ϭhigh) 56 and disability (Oswestry questionnaire scores of 0 -39ϭlow and 40 -100ϭhigh) 25,41,42 at initial evaluation by calculating one-way analyses of variance (ANOVAs). We assessed discriminant validity at the time of intake by determining differences for the dependent variables pain intensity and perceived disability across PPC and QTFC categories.…”

Section: Discussionmentioning

confidence: 99%

“…1). 25,26,[41][42][43][44][45][46][47][48] Patients were referred by their physicians to 1 of 2 physical therapy outpatient clinics within the same municipality. Five physical therapists participated in the study, and all therapists received advanced training in McKenzie evaluation and treatment methods.…”

Section: Subjectsmentioning

confidence: 99%

“…Data from the Oswestry questionnaire have been shown to have good test-retest reliability 41 and predictive validity. 25,42 In the original study, 41 Work status was assessed 1 year after discharge from rehabilitation. Work status was considered good if the employee was working full-time at full duty.…”

Section: Outcome Measuresmentioning

confidence: 99%

“…Biopsychosocial multivariate models are recommended to enhance prediction of occupational low back disability. 16,20,[22][23][24][25] Data from one recent study 27 supported the QTFC procedure for differentiating patient categories on the basis of intake psychological distress measures. Frank et al 27 reported that patients with pain below the knee were more disabled and depressed than patients without pain radiation into the leg.…”

mentioning

confidence: 99%

See 3 more Smart Citations

Categorizing Patients With Occupational Low Back Pain by Use of the Quebec Task Force Classification System Versus Pain Pattern Classification Procedures: Discriminant and Predictive Validity

Werneke¹,

Hart²

2004

Physical Therapy

View full text Add to dashboard Cite

Background and Purpose. Quebec Task Force Classification (QTFC) and pain pattern classification (PPC) procedures, including centralization and noncentralization, are common classification procedures. Classification was done to estimate validity of data obtained with QTFC and PPC procedures for differentiating patient subgroups at intake and for use in predicting rehabilitation outcomes at discharge and work status at 1 year after discharge from rehabilitation. Subjects. Patients (nϭ171, 54% male; mean ageϭ37 years, SDϭ10, rangeϭ18 -62) with acute work-related low back pain referred for physical therapy were analyzed. Methods. Patients completed pain and psychosocial questionnaires at initial examination and discharge and pain diagrams throughout intervention. Physical therapists classified patients using QTFC and PPC data at intake. Patients were classified again at discharge by PPC (time-dependent PPC). Results. Analysis of variance of showed QTFC and PPC data could be used to differentiate patients by pain intensity or disability at intake. Analysis of covariance showed that intake PPC predicted pain intensity and disability at discharge, but QTFC did not. Logistic regression showed that PPC predicted work status at 1 year, but QTFC did not. Classifying patients over time using time-dependent PPC data reduced the false positive rate by 31% and increased percentage of change in pretest-posttest probability of return to work by 16% compared with classifying patients at intake. Discussion and Conclusion. Results support the discriminant validity of the QTFC data at intake and predictive validity of the PPC data at intake. Tracking PPC over time increases predictive validity for 1-year work status.[Werneke MW, Hart DL. Categorizing patients with occupational low back pain by use of the Quebec Task Force Classification system versus pain pattern classification procedures: discriminant and predictive validity. Phys Ther. 2004;84:243-254.]

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Subjectsmentioning

confidence: 99%

Section: Outcome Measuresmentioning

confidence: 99%

mentioning

confidence: 99%

See 2 more Smart Citations

Categorizing Patients With Occupational Low Back Pain by Use of the Quebec Task Force Classification System Versus Pain Pattern Classification Procedures: Discriminant and Predictive Validity

Werneke¹,

Hart²

2004

Physical Therapy

View full text Add to dashboard Cite

show abstract

“…The current study presents the data routinely collected as part of the Model Clinic for Occupational Musculoskeletal Disorders (6,27) . pain can reduce morbidity, suffering and cost (6) .…”

mentioning

confidence: 99%