[World Health Organization. International Classification of impairments, disabilities and handicaps: a manual of classification relating to the consequences of disease. Available at: http://www.cdc.gov/nchs/icd.htm]Search in Google Scholar
[Reid MC, Williams CS, Gill TM. Back pain and decline in lower extremity physical function among community-dwelling older persons. J Gerontol A Biol Sci Med Sci 2005; 60: 793-7.10.1093/gerona/60.6.793]Search in Google Scholar
[Leveille SG, Zhang Y, McMullen W, Kelly-Hayes M, Felson DT. Sex differences in musculoskeletal pain in older adults. Pain 2005; 116: 332-8.10.1016/j.pain.2005.05.002]Search in Google Scholar
[Wynne-Jones G, Dunn KM, Main CJ. The impact of low pain back on work: A study in primary care consulters. Eur J Pain 2008; 12: 180-8.10.1016/j.ejpain.2007.04.006]Search in Google Scholar
[Pengel LM, Herbert RD, Maher C, Refshauge KM. Acute low back pain: systematic review of its prognosis. BMJ 2003; 327: 323-5.10.1136/bmj.327.7410.323]Search in Google Scholar
[Kersnik J, Car J, Svab I. Management of chronic low back pain in family practice. Zdrav Var 2005; 44: 193-8.]Search in Google Scholar
[Schiphorst Preuper HR, Reneman MF, Boonstra AM, Dijkstra PU, Versteegen GJ, Geertzen JH, Brouwer S. Relationship between psychological factors and performance-based and self-reported disability in chronic low back pain. Eur Spine J 2008; 17: 1448-56.10.1007/s00586-008-0772-0]Search in Google Scholar
[Rocchi MBL, Sisti D, Benedetti P, Valentini M, Bellagamba S, Federici A. Critical comparison of nine different self-administered questionnaires for the evaluation of disability caused by low back pain. Eur Med Phys 2005; 41: 275-81.]Search in Google Scholar
[Finch E, Brooks D, Stratford P, Mayo N. Physical rehabilitation outcome measures: a guide to enhanced clinical decision making. 2nd ed, 2002.]Search in Google Scholar
[Vianin M. Psychometric properties and clinical usefulness of the Oswestry Disability Index. J Chiropr Med 2008; 7: 161-3.10.1016/j.jcm.2008.07.001]Search in Google Scholar
[Fairbank J, Couper J, Davies J, O'Brian J. The Oswestry low backpain questionnaire. Physiotherapy 1980; 66: 271-3.]Search in Google Scholar
[Davidson M, Keating J. Oswestry Disability Questionnaire. Aust J Physiother 2005; 51: 270.10.1016/S0004-9514(05)70016-7]Search in Google Scholar
[Davidson M, Keating JL. A comparison of five low back disability questionnaires: reliability and responsiveness. Phys Ther 2002; 82: 8-24.10.1093/ptj/82.1.811784274]Search in Google Scholar
[Roland M, Fairbank J. The Roland-Morris Disability Questionnaire and the Oswestry Disability Questionnaire. Spine 2000; 25: 3115-24.10.1097/00007632-200012150-0000611124727]Search in Google Scholar
[Roland M, Jenner JR (eds.). Back pain: new approaches to rehabilitation and education. Manchester: Manchester University Press, 1989.]Search in Google Scholar
[Fairbank JC, Pynsent PB. The Oswestry Disability Index. Spine 2000; 25: 2940-52.10.1097/00007632-200011150-0001711074683]Search in Google Scholar
[Huskisson EC. Measurement of pain. Lancet 1974; 2: 1127-31.10.1016/S0140-6736(74)90884-8]Search in Google Scholar
[The EuroQol Group. EuroQol - a new facility for the measurement of health-related quality of life. Health Policy 1990; 16: 199-208.10.1016/0168-8510(90)90421-9]Search in Google Scholar
[Guillemin F, Bombardier C, Beaton D. Cross-cultural adaptation of health-related quality of life measures: literature review and proposed guidelines. J Clin Epidemiol 1993; 46: 1417-32.10.1016/0895-4356(93)90142-N]Search in Google Scholar
[Chow JHW, Chan CCH. Validation of the Chinese version of Oswestry Disability Index. Work 2005; 25: 307-14.]Search in Google Scholar
[Yakut E, Duger T, Oksuz C, Yorukan S, Ureten K, Turan D, et al. Validation of the Turkish version of the Oswestry Disability Index for patients with low back pain. Spine (Phila Pa 1976) 2004; 29: 581-5.10.1097/01.BRS.0000113869.13209.03]Search in Google Scholar
[Lauridsen HH, Hartvigsen J, Manniche C, Korsholm L, Grunnet-Nilsson N. Responsiveness and minimal clinically important difference for pain and disability instruments in low back pain patients. BMC Musculoskelet Disord 2006; 7: 82.10.1186/1471-2474-7-82163555817064410]Search in Google Scholar
[Mannion AF, Junge A, Fairbank JC, Dvorak J, Grob D. Development of a German version of the Oswestry Disability Index. Part 1: Cross-cultural adaptation, reliability, and validity. Eur Spine J 2006; 15: 55-65.10.1007/s00586-004-0815-0345457115856341]Search in Google Scholar
[Boscanios PJ, Sapkas G, Stilianessi E, Prouskas K, Papadakis SA. Greek version of the Oswestry and Roland-Morris Disability Questionnaires. Clin Orthop Relat Res 2003; 411: 40-53.10.1097/01.blo.0000068361.47147.7912782858]Search in Google Scholar
[Coelho RA, Siqueira FB, Ferreira PH, Ferreira ML. Responsiveness of the Brazilian-Portuguese version of the Oswestry Disability Index in subjects with low back pain. Eur Spine J 2008; 17: 1101-6.10.1007/s00586-008-0690-1251876118512083]Search in Google Scholar
[Gronblad M, Hupli M, Wennerstrand P, Jarvinen E, Lukinmaa A, Kouri JP, et al. Intercorrelation and test-retest reliability of the Pain Disability Index (PDI) and the Oswestry Disability Questionnaire (ODQ) and their correlation with pain intensivity in low back pain patients. Clin J Pain 1993; 9: 189-95.10.1097/00002508-199309000-000068219519]Search in Google Scholar
[Lauridsen HH, Hartvigsen J, Manniche C, Korsholm L, Grunnet-Nilsson N. Danish version of the Oswestry Disability Index for patients with low back pain. Part 1: Cross-cultural adaptation, reliability and validity in two different populations. Eur Spine J 2006; 15: 1705-16.10.1007/s00586-006-0117-916736204]Search in Google Scholar
[Beurskens AJ, de Vet HC, Koke AJ. Responsiveness of functional status in low back pain: a comparison of different instruments. Pain 1996; 65: 71-6.10.1016/0304-3959(95)00149-2]Search in Google Scholar
[Mannion AF, Junge A, Grob D, Dvorak J, Fairbank JC. Development of a German version of the Oswestry Disability Index. Part 2: Sensitivity to change after spinal surgery. Eur Spine J 2006; 15: 66-73.10.1007/s00586-004-0816-z345456015856340]Search in Google Scholar
[Stratford PW, Binkley JM, Solomon P, Gill C, Finch E. Assessing change over time in patients with low back pain. Phys Ther 1994; 74: 528-33.10.1093/ptj/74.6.5288197239]Search in Google Scholar
[Walsh TL, Hanscom B, Lurie JD, Weinsteim J. Is a condition-specific instrument for patients with low back pain/leg symptoms really necessary? Spine 2003; 28: 607-15.10.1097/01.BRS.0000050654.97387.DF12642770]Search in Google Scholar
[Petek-Ster M, Svab I, Klancic D. Proportion and characteristics of patients who measure their blood pressure at home: nationwide survey in Slovenia. Srp Arh Celok Lek 2009; 137: 52-7.10.2298/SARH0902052P19370967]Search in Google Scholar