TRANSLATION AND PSYCHOMETRIC EVALUATION OF THE YORUBA VERSION OF IBADAN LOW-BACK PAIN DISABILITY QUESTIONNAIRE
Author(s)
Bolanle A. Nottidge, BSc, MSc, PhD1, Chidozie E. Mbada, BSc, MSc, PhD2, Christiana Oyindolapo Oguntuyi, BSc, MSc, PhD3, Aanuoluwapo D. Afolabi, BSc, MSc, PhD4, Clara T. Fatoye, BSc, MA, Other2, Tadesse Gebrye, MPH, MSc2, Francis Fatoye, BSc, MBA, MSc, PhD2;
1University of Uyo Teaching Hospital, Akwa Ibom, Nigeria, 2Manchester Metropolitan University, Manchester, United Kingdom, 3University of Medical Sciences,, Ondo, Nigeria, 4University of Medical Sciences, Ondo, Nigeria
1University of Uyo Teaching Hospital, Akwa Ibom, Nigeria, 2Manchester Metropolitan University, Manchester, United Kingdom, 3University of Medical Sciences,, Ondo, Nigeria, 4University of Medical Sciences, Ondo, Nigeria
OBJECTIVES: Culturally adapted outcome measures are essential for valid clinical assessment, yet the Ibadan Low Back Pain Disability Questionnaire (ILBPDQ) lacks a Yoruba language version. This study aimed to translate and psychometrically evaluate the ILBPDQ-Yor.
METHODS: The ILBPDQ Yor was developed following Beaton’s standardised translation protocol, and its psychometric evaluation was conducted among 100 patients with low back pain (LBP) to determine its construct, convergent, and divergent validity using the Roland Morris Disability Questionnaire, SF 12, and demographic variables. Data were analysed using descriptive statistics and psychometric testing, with construct validity and test-retest reliability assessed using Intra-class correlations (ICCs), convergent and divergent validity examined through correlation analyses with related measures, and agreement evaluated using Bland-Altman analysis.
RESULTS: The ILBPDQ Yor showed a mean score of 42.89 ± 21.77, excellent construct validity (ICC = 0.967; item range = 0.939-0.945), acceptable convergent validity with the RMDQ (r = -0.026 to 0.700), divergent validity with SF 12 physical (r = -0.026 to 0.219; one item significant at p = 0.03) and mental domains (r = -0.336 to -0.518; all p = 0.01-0.001), strong test-retest reliability (ICC = 0.944; 95% CI 0.926-0.958), and Bland-Altman limits of agreement showing no systematic bias (upper = 15.69, lower = -13.63, mean = 0.74).
CONCLUSIONS: The excellent reliability and validity of the ILBPDQ-Yor support its use as a culturally appropriate tool for accurately identifying and monitoring LBP-related disability in Yoruba-speaking populations, thereby enabling targeted interventions, toimprove health outcomes and reduce the overall burden associated with LBP.
METHODS: The ILBPDQ Yor was developed following Beaton’s standardised translation protocol, and its psychometric evaluation was conducted among 100 patients with low back pain (LBP) to determine its construct, convergent, and divergent validity using the Roland Morris Disability Questionnaire, SF 12, and demographic variables. Data were analysed using descriptive statistics and psychometric testing, with construct validity and test-retest reliability assessed using Intra-class correlations (ICCs), convergent and divergent validity examined through correlation analyses with related measures, and agreement evaluated using Bland-Altman analysis.
RESULTS: The ILBPDQ Yor showed a mean score of 42.89 ± 21.77, excellent construct validity (ICC = 0.967; item range = 0.939-0.945), acceptable convergent validity with the RMDQ (r = -0.026 to 0.700), divergent validity with SF 12 physical (r = -0.026 to 0.219; one item significant at p = 0.03) and mental domains (r = -0.336 to -0.518; all p = 0.01-0.001), strong test-retest reliability (ICC = 0.944; 95% CI 0.926-0.958), and Bland-Altman limits of agreement showing no systematic bias (upper = 15.69, lower = -13.63, mean = 0.74).
CONCLUSIONS: The excellent reliability and validity of the ILBPDQ-Yor support its use as a culturally appropriate tool for accurately identifying and monitoring LBP-related disability in Yoruba-speaking populations, thereby enabling targeted interventions, toimprove health outcomes and reduce the overall burden associated with LBP.
Conference/Value in Health Info
2026-05, ISPOR 2026, Philadelphia, PA, USA
Value in Health, Volume 29, Issue S6
Code
MSR160
Topic
Methodological & Statistical Research
Topic Subcategory
Survey Methods
Disease
SDC: Musculoskeletal Disorders (Arthritis, Bone Disorders, Osteoporosis, Other Musculoskeletal)