Background: Neck pain is highly prevalent and one of the most common musculoskeletal
conditions. Instruments that measure the factors involved in neck pain accurately are needed for
clinical assessment. Patient-reported outcome measures (PROMs) are reliable, cost-effective, and
specific tools for the assessment of musculoskeletal problems at different moments. The Neck
Bournemouth Questionnaire (NBQ) assesses pain, function, disability, and psychological and social
variables in patients with cervical pathologies. The aim of this study was to perform an adaptation and
validation into Spanish of the NBQ (NBQ-Sp). Methods: A cross-sectional, observational study was
carried out through translation, adaptation, and validation. A total of 129 patients with neck pain, of
Spanish nationality, and over 18 years of age were included. Results: The NBQ-Sp showed excellent
internal consistency, with Cronbach’s of 0.897, test–retest reliability with interclass correlation
coefficient (ICC) of 0.866, and standard error of measurement (SEM) and minimum detectable change
(MDC) values were 1.302 and 3.038, respectively. A Kaiser–Meyer–Olkin value of 0.857 was obtained,
and Bartlett’s test yielded p < 0.001, finding one factor in the factor analysis. Conclusion: The NBQ-Sp
has proven to be a valid and reliable tool for clinicians and researchers to measure neck pain in the
Spanish population.
