Psychometric Characteristics of Spanish Neck Pain Disability Instruments
Author Information
Author(s): Kovacs Francisco M, Bagó Joan, Royuela Ana, Seco Jesús, Giménez Sergio, Muriel Alfonso, Abraira Víctor, Martín José Luis, Peña José Luis, Gestoso Mario, Mufraggi Nicole, Núñez Montserrat, Corcoll Josep, Gómez-Ochoa Ignacio, Ramírez Ma José, Calvo Eva, Castillo Ma Dolores, Martí David, Fuster Salvador, Fernández Carmen, Gimeno Nuria, Carballo Alejandro, Milán Álvaro, Vázquez Dolores, Cañellas Montserrat, Blanco Ricardo, Brieva Pilar, Rueda Ma Trinidad, Álvarez Luis, del Real María Teresa Gil, Ayerbe Joaquín, González Luis, Ginel Leovigildo, Ortega Mariano, Bernal Miryam, Bolado Gonzalo, Vidal Anna, Ausín Ana, Ramón Domingo, Mir María Antonia, Tomás Miquel, Zamora Javier, Cano Alejandra
Primary Institution: Fundación Kovacs
Hypothesis
The study aims to translate and validate the Spanish versions of the Neck Disability Index (NDI) and Core Outcome Measure (COM) for patients with non-specific neck pain.
Conclusion
The NDI is the most reliable instrument for measuring neck pain-related disability, while the COM may overestimate patient improvement.
Supporting Evidence
- The NDI showed good reliability with an ICC of 0.88.
- The COM had a lower reliability with an ICC of 0.85.
- NDI scores were consistent with patients' self-assessment of their clinical status.
- Patients took a median of 4 minutes to complete the NDI and 2.1 minutes for the COM.
- NDI was the only questionnaire consistent with external criteria for pain.
- NDI and NPQ showed similar psychometric characteristics.
- Patients reported a significant change in disability scores over time.
- Comprehensibility of the NDI and COM was assessed positively in the pilot study.
Takeaway
This study created Spanish versions of two questionnaires to help doctors understand how neck pain affects patients' daily lives. The first one is better at showing how much pain affects people.
Methodology
The study involved translating the NDI and COM into Spanish, conducting a pilot study for comprehensibility, and a validation study to assess psychometric properties.
Potential Biases
Potential bias in self-reported measures and the subjective nature of pain assessment.
Limitations
The study may not fully represent all Spanish-speaking populations due to regional differences.
Participant Demographics
{"gender_distribution":{"female":172,"male":49},"age":{"median":48.7,"sd":14.8},"chronicity":{"acute":46,"subacute":152,"chronic":22}}
Statistical Information
Confidence Interval
{"NDI":"(0.80, 0.93)","COM":"(0.75, 0.91)"}
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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