Statistics notes: variables and parameters.

نویسندگان

  • D G Altman
  • J M Bland
چکیده

the course of low back pain in general practice: a one year follow up study. Ann Rheum Dis 1998;57:13-9. 16 Croft PR, Papageorgiou AC, Ferry S, Thomas E, Jayson MIV, Silman AJ. Psychological distress and low back pain: Evidence from a prospective study in the general population. Spine 1996;20:2731-7. 17 Papageorgiou AC, Macfarlane GJ, Thomas E, Croft PR, Jayson MIV, Silman AJ. Psychosocial factors in the work place—do they predict new episodes of low back pain? Spine 1997;22:1137-42. 18 Main CJ, Wood PL, Hollis S, Spanswick CC, Waddell G. The distress and risk assessment method. A simple patient classification to identify distress and evaluate the risk of poor outcome. Spine 1992;17:42-52. 19 Coste J, Delecoeuillerie G, Cohen de Lara A, Le Parc JM, Paolaggi JB. Clinical course and prognostic factors in acute low back pain: an inception cohort study in primary care practice. BMJ 1994;308:577-80. 20 Dionne CE, Koepsell TD, Von Korff M, Deyo RA, Barlow WE, Checkoway H. Predicting long-term functional limitations among back pain patients in primary care. J Clin Epidemiol 1997;50:31-43. 21 Macfarlane GJ, Thomas E, Papageorgiou AC, Schollum J, Croft PR. The natural history of chronic pain in the community: a better prognosis than in the clinic? J Rheumatol 1996;23:1617-20. 22 Troup JDG, Martin JW, Lloyd DCEF. Back pain in industry. A prospective survey. Spine 1981;6:61-9. 23 Burton AK, Tillotson KM. Prediction of the clinical course of low-back trouble using multivariable models. Spine 1991;16:7-14. 24 Pope MH, Rosen JC, Wilder DG, Frymoyer JW. The relation between biomechanical and psychological factors in patients with low-back pain. Spine 1980;5:173-8.

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عنوان ژورنال:
  • BMJ

دوره 318 7199  شماره 

صفحات  -

تاریخ انتشار 1999