Clinical and Translational Oncology

, Volume 13, Issue 1, pp 50–56 | Cite as

The EORTC quality of life questionnaire for patients with colorectal cancer: EORTC QLQ-CR29 validation study for Spanish patients

  • Juan Ignacio Arraras
  • Javier Suárez
  • Fernando Arias de la Vega
  • Ruth Vera
  • Gemma Asín
  • Virginia Arrazubi
  • Mikel Rico
  • Lucía Teijeira
  • Jaione Azparren
Research Articles

Abstract

Introduction

The EORTC Quality of Life (QL) Group has developed a questionnaire -the EORTC QLQ-CR29- for evaluating QL in colorectal cancer. The aim of this study is to assess the psychometric properties of the EORTC QLQ-CR29 when applied to a sample of Spanish patients.

Materials and methods

Eighty-four locally advanced rectal cancer patients in the treatment follow-up period after receiving surgery and neoadjuvant chemoradiotherapy were included in the study. Seventy subjects also had adjuvant chemotherapy. Patients completed both the EORTC QLQ-C30 and the QLQ-CR29 once. The psychometric evaluation of the questionnaire’s structure, reliability, and convergent, divergent and known-groups validity was performed.

Results

Multitrait scaling analysis showed that three of the multi-item scales met the standards of convergent and discriminant validity. These same scales reached the 0.7 Cronbach’s coefficient criterion or were close to it. In both analyses exceptions were observed in the blood and mucus in stool scale. Correlations between the scales of the QLQ-C30 and the module were low (r<0.02) in most cases. A few areas with more related content had higher correlations (r<0.05). Group comparison analyses showed differences in QL between groups of patients based on age, comorbidity, performance status, receipt of adjuvant chemotherapy and surgery modality.

Conclusions

The EORTC QLQ-CR29 is a reliable and valid instrument when applied to a sample of Spanish rectal cancer patients. These results are in line with those of the EORTC validation study.

Keywords

Cancer Colorectal Quality of life Validation Spanish Questionnaire 

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Copyright information

© Feseo 2011

Authors and Affiliations

  • Juan Ignacio Arraras
    • 1
    • 2
    • 4
  • Javier Suárez
    • 3
  • Fernando Arias de la Vega
    • 1
  • Ruth Vera
    • 2
  • Gemma Asín
    • 1
  • Virginia Arrazubi
    • 2
  • Mikel Rico
    • 1
  • Lucía Teijeira
    • 2
  • Jaione Azparren
    • 2
  1. 1.Radiotherapeutic Oncology DepartmentHospital de NavarraPamplona, NavarraSpain
  2. 2.Medical Oncology DepartmentHospital de NavarraPamplona, NavarraSpain
  3. 3.Surgery DepartmentHospital de NavarraPamplona, NavarraSpain
  4. 4.Pamplona, NavarraSpain

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