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New model to explain the EQ-5D VAS in patients who have undergone spinal fusion

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Abstract

Background

In the health sector, the EQ-5D has been widely used to evaluate health-related quality of life, mainly due to its simplicity, robustness and plasticity in calculating years of life adjusted for quality.

Methods

However, its model has remained stable over time and knowledge of the influence of such biodemographical variables as age and gender has not been incorporated. This information, along with the well-known non-linear behavior of the VAS, which measures the self-concept of the ‘General State of Health’, forms the basis for a new model, which we present here from a sample of patients who were operated on for chronic low back pain.

Results

These are obtained using multiple regression analysis are consistent in terms of goodness-of-fit given that this new model is able to explain 91.3% of the self-concept of the ‘general state of health’.

Conclusions

Above leads to an improvement of 21.6% compared to the available models more robust and meets most of the restrictions for this type of statistical modeling.

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Abbreviations

SGHS:

Self-concept of the ‘General State of Health’

VGSH:

Valuation of the ‘General State of Health’

TARIFF:

Point score from 0 to 1 that indicates on average how a particular State of Hypothetical Health derived from the EQ-5D adapted to Spain is rated by the general non-institutionalized Spanish population

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Authors and Affiliations

  1. Departamento de Matemática y Estadística, Facultad de Ingeniería, Ciencias y Administración, Universidad De La Frontera, Mailbox 54-D, Temuco, Chile

    Jorge Cortés

  2. Trauma Unit, Facultad de Medicina, Universidad de Salamanca, Salamanca, Spain

    Juan F. Blanco & David Pescador

  3. Atención Primaria, Castilla y León, Salamanca, Spain

    Nuria Asensio

  4. Facultad de Estadística e Informática, Universidad Veracruzana, Veracruz, Mexico

    Claudio Castro

  5. Dpto. Cs. Matemáticas y Físicas, Universidad Católica de Temuco, Temuco, Chile

    Juan Moncada Herrera

Authors
  1. Jorge Cortés
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  2. Juan F. Blanco
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  3. David Pescador
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  4. Nuria Asensio
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  5. Claudio Castro
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  6. Juan Moncada Herrera
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Corresponding author

Correspondence to Jorge Cortés.

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Cortés, J., Blanco, J.F., Pescador, D. et al. New model to explain the EQ-5D VAS in patients who have undergone spinal fusion. Qual Life Res 19, 1541–1550 (2010). https://doi.org/10.1007/s11136-010-9714-5

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  • DOI: https://doi.org/10.1007/s11136-010-9714-5

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