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Medicine Faculty of Porto University Biostatistics and Medical Informatics Department

Medicine Faculty of Porto University Biostatistics and Medical Informatics Department. Risk factors which influence the evolution of acute pain into chronic pain Systematic Review. Class 6. Introduction. Pain

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Medicine Faculty of Porto University Biostatistics and Medical Informatics Department

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  1. Medicine Faculty of Porto UniversityBiostatistics and Medical Informatics Department Risk factors which influence the evolution of acute pain into chronic pain Systematic Review Class 6

  2. Introduction Pain Unpleasant sensory and emotional experience associated with actual or potential tissue damage [1]. Acute Pain & Chronic Pain Chronic pain is a pain without apparent biological value that has persisted beyond the normal tissue healing time (taken to be three months), whereas acute pain tends to have shorter duration, as well as it is connected with tissue lesions [2]. [1] http://www.iasp-pain.org; IASP – International Association for the Study of Pain [2] Smith BH; Hopton JL and Chambers WA; Chronic pain in primary care; Family Practice; 1999; 16; 475-482

  3. Objective To review systematically the literature regarding risk factors which influence the evolution of acute pain into chronic pain

  4. Methods Inclusion criteria: • Cohort studies that refer to the factors which influence the evolution of acute pain into chronic pain. Exclusion criteria: • Language restriction: only studies in English or Portuguese would be included. • Studies that are not related with the context of our review. • Studies that do not include cohort studies. • Studies that do not refer the evolution of acute pain into chronic.

  5. Assessment Protocol Organization of reviewer groups: 4 Reviewer Groups: three groups of 2 elements and one group of 3 elements Revision by abstract: All groups with 6 articles Two groups with 93 articles and two groups with 92 articles Revision by full text: Three groups with 17 articles and one group with 18 articles

  6. Fluxogram

  7. SPSS Analysis

  8. Results Main features of the studies used in the review

  9. Inclusion and exclusion criteria of the sample’s subjects

  10. Risk factors studied in each article and trheir influence in the evolution of acute pain into chronic pain

  11. Discussion Comparison of articles according to the following items: • Types of pain • Population • Sample’s size • Follow-up period • Year of publication • Definition of chronic pain • Inclusion/Exclusion criteria of study’s participants • Risk factors studied

  12. Conclusion Risk factors which inflence the evolution from acute pain into chronic pain

  13. Factors that do not influence the evolution from acute pain into chronic pain

  14. References [1] http://www.iasp-pain.org; IASP – International Association for the Study of Pain [2] Smith BH; Hopton JL and Chambers WA. Chronic pain in primary care, Family Practice 1999; 16; 475-482 [3] Purves AM, Penny K, Munro C et al. Defining chronic pain for epidemiological research – acessing a subjective definition, The Pain Clinic 1998; 10; 139-147. [4] IASP – Pain Clinical Updates; volume XI, No. 2; June 2003 [5] Von Korff M, Dworkin SF, Le Resche L. Graded chronic pain status: an epidemiologic evaluation, Pain 1990; 40: 279-291 [6] Bowsher D, Rigge M, Sopp L. Prevalence of chronic pain in the British population: a telephone survey of 1037 households, The Pain Clinic 1991; 4: 223-230 [7] Brattberg G, Thorslund M, Wilkman A. The prevalence of pain in the general population. The results of a postal survey in a county in Sweden, Pain 1989; 37: 215-222 [8] Fransen M, Woodward M, Norton R et al, Risk Factors Associated with the Transition From Acute to Chronic Occupational Back Pain, Spine, volume 27, number 1, pp 92-98, 2002 [9] Pai M, McCulloch M, Gorman JD et al, Systematic reviews and meta-analyses: An illustrated, step-by-step guide, The national medical journal of India, volume 17, No2, 2004 [10]Williams R et al. The contribution of job satisfaction to the transition from acute to chronic low back pain, Archives of physical medicine and rehabilitation, volume 79, pp 366-374, April 1998 [11] Andersson H. The course of a non-malignant chronic pain: a 12-year follow-up of a cohort from the general population, European journal of Pain, volume 8, pp 47-53, 2004

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