Psychometric properties of the Hebrew version of the Oswestry Disability Index

Article type: Research Article

Authors: Gamus, Dorit^a | Glasser, Saralee^{b; *} | Langner, Elisheva^b | Beth-Hakimian, Aliza^a | Caspi, Israel^c | Carmel, Narin^a | Siev-Ner, Itzhak^d | Amir, Hagai^d | Papa, Moshe^e | Ziv, Amitai^{f; g} | Lerner-Geva, Liat^{b; g}

Affiliations: [a] Complementary Medicine Service, Sheba Medical Center, Tel Hashomer, Israel | [b] Women and Children's Health Research Unit, Gertner Institute for Epidemiology and Health Policy Research, Sheba Medical Center, Tel Hashomer, Israel | [c] Department of Orthopedics, Spine Deformity Unit, Sheba Medical Center, Tel Hashomer, Israel | [d] Orthopedic Rehabilitation Department, Sheba Medical Center, Tel Hashomer, Israel | [e] Surgery & Surgical Oncology & Breast Service, Sheba Medical Center, Tel Hashomer, Israel | [f] MSR - Israel Center for Medical Simulation, Sheba Medical Center, Tel Hashomer, Israel | [g] School of Public Health, Sackler Faculty of Medicine, Tel Aviv University, Israel

Correspondence: [*] Corresponding author: Saralee Glasser, Women and Children's Health Research Unit, Gertner Institute for Epidemiology and Health Policy Research, Sheba Medical Center, Tel Hashomer 52621, Israel. Tel.: +972 3 5303505, x104, Fax: +972 3 5354057; E-mail: saraleeg@gertner.health.gov.il

Abstract: BACKGROUND: Low back pain (LBP) is one of the most common health complaints, with lifetime prevalence rates as high as 84%. The Oswestry Disability Index (ODI) is often the measure of choice for LBP in both research and clinical settings and, as such, has been translated into 29 languages and dialects. Currently, however, there is no validated version of Hebrew-translated ODI (ODI-H). OBJECTIVE: To examine the psychometric properties of the ODI-H. METHODS: Cross-culturally appropriate translation into Hebrew was conducted. A convenience sample of 115 participants (Case Group) with LBP and 68 without LBP (Control Group) completed the ODI-H, SF-36 Health Survey, and two Visual Analog Scales (VAS). RESULTS: Internal consistency was α = 0.94 and test-retest reliability for 18 participants repeating the ODI-H was 0.97. No floor or ceiling effects were noted for Cases, although there was a floor effect for the Control Group. Scores were significantly different for the two groups, indicating discriminant validity. Concurrent validity was reflected by significant correlations with SF-36 scores, particularly the Physical Functioning and Bodily Pain subscales (-0.83 and -0.79, respectively) and with the VAS (0.84 and 0.79). CONCLUSIONS: The ODI-H is a valid and reliable measure of low back pain-related disability for the Hebrew-speaking public.

Keywords: Oswestry Disability Index, ODI, Hebrew, low back pain, validation, SF-36 Health Survey, Visual Analog Scale, translation, reliability, psychometric, assessment

DOI: 10.3233/BMR-160726

Journal: Journal of Back and Musculoskeletal Rehabilitation, vol. 30, no. 1, pp. 135-143, 2017