Validación Rasch del Keratoconus End-Points Assessment Questionnaire en población española con queratocono

  1. Kepa Balparda 8
  2. Luis García-Onrubia 89
  3. Fco Javier Valentín-Bravo 1
  4. Mariana Escobar-Giraldo 2
  5. Manuel Caro-Magdaleno 36
  6. A. Acera Osa 467
  7. Jesús M. Merayo-Lloves 56
  8. David José Galarreta 68
  1. 1 Hospital Universitari Germans Trias i Pujol
    info

    Hospital Universitari Germans Trias i Pujol

    Barcelona, España

    ROR https://ror.org/04wxdxa47

  2. 2 Universidad Pontificia Bolivariana
    info

    Universidad Pontificia Bolivariana

    Medellín, Colombia

    ROR https://ror.org/02dxm8k93

  3. 3 Hospital Universitario Virgen Macarena., Sevilla, España
  4. 4 Universidad del País Vasco/Euskal Herriko Unibertsitatea
    info

    Universidad del País Vasco/Euskal Herriko Unibertsitatea

    Lejona, España

    ROR https://ror.org/000xsnr85

  5. 5 Instituto Fernández Vega, Oviedo, Asturias, España
  6. 6 Instituto de Salud Carlos III
    info

    Instituto de Salud Carlos III

    Madrid, España

    ROR https://ror.org/00ca2c886

  7. 7 Ikerbasque, Fundación Vasca para la Ciencia
    info

    Ikerbasque, Fundación Vasca para la Ciencia

    Bilbao, España

  8. 8 Hospital Universitario de Valladolid
    info

    Hospital Universitario de Valladolid

    Valladolid, España

    ROR https://ror.org/04fffmj41

  9. 9 Fundación Jiménez Díaz
    info

    Fundación Jiménez Díaz

    Madrid, España

    ROR https://ror.org/049nvyb15

Show affiliations +
Journal:
Archivos de la Sociedad Española de Oftalmologia

ISSN: 0365-6691

Year of publication: 2024

Volume: 99

Issue: 8

Pages: 323-330

Type: Article

DOI: 10.1016/J.OFTAL.2024.04.007 DIALNET GOOGLE SCHOLAR

More publications in: Archivos de la Sociedad Española de Oftalmologia

Abstract

Objective To carry out a methodologically complete validation of the Spanish version of the Keratoconus End-Points Assessment Questionnaire (KEPAQ) in a Spanish population with keratoconus. Method Analytical, prospective study, including patients with keratoconus without previous surgical history, in which a measurement of quality of life was performed using the KEPAQ questionnaire, a complete exploration of the anterior pole and a corneal elevation topography with the Galilei™ G6 topographer. The evaluation of the psychometric characteristics of the scale in the studied population was carried out using Rasch modeling. Results A total of 140 patients with keratoconus were included, with a median age of 26.0 years, the majority (57.6%) being men. For the KEPAQ-E subscale, the median score was 69.3, with a reliability of 0.85 and an eigenvalue of the first contrast of 2.34. For the KEPAQ-F, the median score was 56.4, with a reliability of 0.88 and an eigenvalue of 2.00. All infit and outfit parameters were within normal limits for both subscales. A significant evaluation was found between the evaluations of both subscales (rho = 0.696; p < 0.001). The evaluations of the subscales and various clinical and tomographic characteristics showed a significant classification between them (p value between 0.048 y 0.001). Conclusion The KEPAQ is a psychometrically robust and valid scale to evaluate quality of life in the Spanish population with keratoconus. This questionnaire can be easily used for both clinical and research aims.

Data source: Dialnet