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1.
Occup Med (Lond) ; 61(2): 127-31, 2011 Mar.
Article in English | MEDLINE | ID: mdl-21199861

ABSTRACT

BACKGROUND: Most people experience low back pain (LBP) at least once in their lifetime. Only a minority of them go on to develop persistent LBP. However, the socioeconomic costs of persistent LBP significantly exceed the costs of the initial acute LBP episode. AIMS: To identify factors that influence the progression of acute LBP to the persistent state at an early stage. METHODS: Prospective inception cohort study of patients attending a health practitioner for their first episode of acute LBP or recurrent LBP after a pain free period of at least 6 months. Patients were assessed at baseline addressing occupational and psychological factors as well as pain, disability, quality of life and physical activity and followed up at 3, 6, 12 weeks and 6 months. Variables were combined to the three indices 'working condition', 'depression and maladaptive cognitions' and 'pain and quality of life'. RESULTS: The index 'depression and maladaptive cognitions' was found to be a significant baseline predictor for persistent LBP up to 6 months (OR 5.1; 95% CI: 1.04-25.1). Overall predictive accuracy of the model was 81%. CONCLUSIONS: In this study of patients with acute LBP in a primary care setting psychological factors at baseline correlated with a progression to persistent LBP up to 6 months. The benefit of including factors such as 'depression and maladaptive cognition' in screening tools is that these factors can be addressed in primary and secondary prevention.


Subject(s)
Depressive Disorder/psychology , Low Back Pain/psychology , Quality of Life/psychology , Work Schedule Tolerance/psychology , Acute Disease , Adolescent , Adult , Aged , Chronic Disease , Depressive Disorder/complications , Disease Progression , Female , Follow-Up Studies , Humans , Low Back Pain/classification , Low Back Pain/complications , Male , Middle Aged , New Zealand , Pain Measurement/psychology , Primary Health Care , Prospective Studies , Risk Factors , Surveys and Questionnaires , Young Adult
2.
Int Orthop ; 33(2): 301-13, 2009 Apr.
Article in English | MEDLINE | ID: mdl-19130056

ABSTRACT

Low back pain (LBP) is currently the most prevalent and costly musculoskeletal problem in modern societies. Screening instruments for the identification of prognostic factors in LBP may help to identify patients with an unfavourable outcome. In this systematic review screening instruments published between 1970 and 2007 were identified by a literature search. Nine different instruments were analysed and their different items grouped into ten structures. Finally, the predictive effectiveness of these structures was examined for the dependent variables including "work status", "functional limitation", and "pain". The strongest predictors for "work status" were psychosocial and occupational structures, whereas for "functional limitation" and "pain" psychological structures were dominating. Psychological and occupational factors show a high reliability for the prognosis of patients with LBP. Screening instruments for the identification of prognostic factors in patients with LBP should include these factors as a minimum core set.


Subject(s)
Disability Evaluation , Low Back Pain/diagnosis , Low Back Pain/psychology , Surveys and Questionnaires , Work Capacity Evaluation , Acute Disease , Chronic Disease , Disease Progression , Female , Humans , Low Back Pain/epidemiology , Male , Mass Screening/methods , Pain Measurement , Predictive Value of Tests , Prognosis , Psychology , Risk Factors , Sensitivity and Specificity , Severity of Illness Index , Sick Leave/statistics & numerical data , Sickness Impact Profile
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