To translate the original English version of the University of Washington Quality of Life (UW-QOL) questionnaire into Moroccan Arabic version and investigate its psychometric validity and reliability for Moroccan-speaking patients with head and neck cancer.
Methods:
The UW-QOL was conducted in 104 patients treated for head and neck cancer in the department of head and neck surgery, Ibn Rochd university hospital, Casablanca. A control group of 57 healthy volunteers was also evaluated. The questionnaire was translated into Moroccan language.
Results:
Cronbach’s alpha coefficient was 0.829, suggesting good internal consistency, and test-retest reliability was excellent (intraclass correlation coefficient [ICC] = 0.987). A good correlation was observed between UW-QOL composite scores and European Organization for Research and Treatment of Cancer Quality of Life Core Questionnaire (EORTC QLQ-C30) global health status/QOL scores (P < .001). There was also low concordance between the UW-QOL scores and the Physical Component Summary and Mental Component Summary scores of the 36-Item Short-Form questionnaire (SF-36) (P = .017 and P = .014, respectively).
Conclusions:
The Moroccan UW-QOL questionnaire appears to be culturally appropriate and psychometrically valid.
WeissMH. Head and neck cancer and the quality of life. Otolaryngol Head Neck Surg. 1993;108(4):311-312.
2.
GómezISeoaneJVarela-CentellesP. Is diagnostic delay related to advanced-stage oral cancer? A meta-analysis. Eur J Oral Sci. 2009;117:541-629.
3.
OwenCWatkinsonJCPracyP. The psychosocial impact of head and neck cancer. Clin Otolaryngol Allied Sci. 2001;26:351-356.
4.
TerrellJENanavatiKEsclamandoRM. Health impact of head and neck cancer. Otolaryngol-Head Neck Surg. 1999;120:852-859.
5.
VartanianJGCarvalhoALYuehB. Long-term quality-of-life evaluation after head and neck cancer treatment in a developing country. Arch Otolaryngol Head Neck Surg. 2004;130:1209-1213.
6.
HassaneinKAMusgroveBTBradburyE. Psychological outcome of patients following treatment of oral cancer and its relation with functional status and coping mechanisms. J Craniomaxillofac Surg. 2005;33(6):404-409.
7.
VartanianJGCarvalhoALYuehB. Brazilian-Portuguese validation of the University of Washington Quality of Life Questionnaire for patients with head and neck cancer. Head Neck. 2006;28:1115-1121.
8.
Torres-CarranzaEInfante-CossíoPHernández-GuisadoJM. Assessment of quality of life in oral cancer. Med Oral Patol Oral Cir Bucal. 2008;13(11):735-741.
9.
BjördalKKaasaS. Psychometric validation of the EORTC Core Quality of Life Questionnaire, 30-item version and a diagnosis-specific module for head and neck cancer patients. Acta Oncol. 1992;31:311-321.
10.
BjördalKHammerlidEAhlner-ElmqvistM. Quality of life in head and neck cancer patients: validation of the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire-H&N35. J Clin Oncol. 1999;17:1008-1019.
11.
RogersSNGwanneSLoweD. The addition of mood and anxiety domains to the University of Washington quality of life scale. Head Neck. 2002;24:521-529.
12.
D’cruzAKYuehBDasAK. Validation of the University of Washington quality of life questionnaires for head and neck cancer patients in India. Indian J Cancer. 2007;44(4):147-154.
13.
NazarGGarmendiaMLRoyerM. Spanish validation of the University of Washington Quality of Life Questionnaire for head and neck cancer patients. Otolaryngol Head Neck Surg. 2010;143(6):801-807.
14.
SenkalHAHayranMKarakayaE. The validity and reliability of the Turkish version of the University of Washington Quality of Life Questionnaire for patients with head and neck cancer. Am J Otolaryngol. 2012;33(4):417-426.
15.
ChangMYRogersSNLoweD. The Korean version of the University of Washington Quality of Life Questionnaire for patients with head and neck cancer, and its use in an initial validation study of 56 patients. Int J Oral Maxillofac Surg. 2012;41(10):1201-1205.
16.
LinardoutsosGRapidisADLoweD. Development of the Greek version of the University of Washington quality of life questionnaire for patients with head and neck cancer. J Craniomaxillofac Surg. 2014;42(5):601-607.
17.
BeatonDEBombardierCGuilleminF. Guidelines for the process of cross-cultural adaptation of self-report measures. Spine. 2000;25:3186-3191.
18.
WildDGroveAMartinM. ISPOR Task Force for Translation and Cultural Adaptation: principles of good practice for the translation and cultural adaptation process for patient-reported outcomes (PRO) measures: report of the ISPOR Task Force for Translation and Cultural Adaptation. Value Health. 2005;8(2):94-104.
19.
NejjariCEl FakirSBendahhouK. Translation and validation of European organization for research and treatment of cancer quality of life Questionnaire-C30 into Moroccan version for cancer patients in Morocco. BMC Res Notes. 2014;7:228.
20.
HassanSJWeymullerEAJr. Assessment of quality of life in head and neck cancer patients. Head Neck. 1993;15:485-496.
21.
AaronsonNKAhmedzaiSBergmanB. The European Organization for Research and Treatment of Cancer QLQ-C30: a quality-of-life instrument for use in international clinical trials in oncology. J Natl Cancer Inst. 1993;85(5):365-376.
22.
FayersPMAaronsonNKBjordalKGroenvoldMCurranDBottomleyAon behalf of the EORTC Quality of Life Group. The EORTC QLQ-C30 Scoring Manual. 3rd ed.Brussels: European Organisation for Research and Treatment of Cancer; 2001.
23.
WareJEJrSherbourneCD. The MOS 36-item short-form health survey (SF-36). I. Conceptual framework and item selection. Med Care. 1992;30:473-483.
24.
RogersSNFisherSEWoolgarJA. A review of quality of life assessment in oral cancer. Int J Oral Maxillofac Surg. 1999;28:99-117.
25.
StreinerDLNormanGR. Health Measurement Scales: A Practical Guide to Their Development and Use. 2nd ed.Oxford, UK: Oxford University; 1989.
26.
DeyoRADiehrPPatrickDL. Reproducibility and responsiveness of health status measures. Statistics and strategies for evaluation. Control Clin Trials. 1991;12(4 suppl):142S-158S.
27.
DonnerAEliasziwM. Sample size requirements for reliability studies. Stat Med. 1987;6(4):441-448.
28.
GuilleminFBombardierCBeatonD. Cross-cultural adaptation of health-related quality of life measures: literature review and proposed guidelines. J Clin Epidemiol. 1993;46:1417-1432.
29.
LarawayDCRogersSN. A structured review of journal articles reporting outcomes using the University of Washington Quality of Life Scale. Br J Oral Maxillofac Surg. 2012;50(2):122-131.
