Transcultural adaptation and validation of the Spanish language version of the questionnaire OQLQ for the assessment of quality of life in orthognathic patients

Abstract

BackgroundOrthognathic surgery is the cornerstone of the treatment of dentofacial deformities, which have a great psychological and social impact on the life of the patient. Patient satisfaction and the impact on quality of life have recently become clinical parameters of growing importance. The aim of this study was to undertake a transcultural adaptation, translation to Spanish and validation of this version of the questionnaire OQLQ, used to measure quality of life in the context of Spanish culture.Material and MethodsValidation of the OQLQ questionnaire to the Spanish language was carried out through the methodology of translation and back translation, conceptual equivalence and piloting. The Spanish version was applied through a cross-sectional study to a total of 50 patients undergoing orthognathic surgery.ResultsThe adapted and validated version showed adequate metric properties of reliability, change sensitivity and validity. In this study, a positive impact of orthognathic surgery on the specific quality of life was evident in 96% of patients, with an average improvement of 58% with respect to the initial score.ConclusionsDentofacial deformities have a marked negative impact on the lives of patients, with orthognathic surgery being a therapeutic tool of great value in improving the quality of life in social, functional and aesthetic terms. The pilot test of this Spanish language version of the OQLQ proved valid for the assessment of quality of life in Spanish-speaking orthognathic patients or those with a Spanish culture. Key words:Orthognathic surgery, quality of life, validation studies, dentofacial deformities, patient satisfaction, treatment outcome.

Validity and reliability of the Turkish version of the orthognathic quality of life questionnaire in patients with dentofacial deformity

“…In this study, ICC by dimensions was similar to the value reported by Cunningham et al ( 11 ). The Spanish version ( 13 ), the Brazilian version ( 12 ), the Serbian version ( 14 ), and the Chinese version ( 26 ), including the original scale ( 11 ), have Cronbach's alpha values for all four domains, similar to the results of the OQLQ-TR. The ICCs of the 4 domains of the questionnaire were evaluated based on the homogeneity of the responses to each item.…”

The Orthognathic Quality of Life Questionnaire: Translation and Validation into Dutch

“…Its domains show good evidence for internal reliability (Cronbach a ranging between 0.83 and 0.93) and test-retest reliability (ICC ranging between 0.76 and 0.92) and construct validity in the United Kingdom 13,14 and has been translated in Portuguese, Spanish, Serbian, German, and Japan with the same results. [15][16][17][18][19][20] For the Dutch version of the OQLQ, these measurement properties had to be assessed in a similar way. In this study, the internal and testretest reliability and construct validity have been tested.…”

“…13,14 The OQLQ has been translated and validated in Portuguese, Spanish, Serbian, German, and Japan but not in the Dutch language. [15][16][17][18][19][20] Although the OQLQ has shown to be a reliable and valid PROM, it is not possible to use it for a Dutch speaking population without careful translation and validation. Presently, there are multiple standardized guidelines for translating questionnaires regarding health-related quality of life; however, there is not enough evidence to favor 1 specific method.…”

“…There is strong evidence that the OQLQ scores high in validity and reliability 13,14 . The OQLQ has been translated and validated in Portuguese, Spanish, Serbian, German, and Japan but not in the Dutch language 15–20 . Although the OQLQ has shown to be a reliable and valid PROM, it is not possible to use it for a Dutch speaking population without careful translation and validation.…”

Állcsontnövekedési zavarokra specifikus életminőség-kérdőív magyar nyelvű adaptálása

“…Jelenleg a kérdőívnek létezik német, portugál, arab, szerb, spanyol, kínai és svéd nyelvre lefordított és validált változata [7][8][9][10][11][12][13]. Magyar nyelven a szájegészséget felmérő kérdőív (OHIP-H -Oral Health Impact Profile) [14] és ennek két rövidített változata [15] érhető el, azonban a dentofacialis eltéréssel élők állapotspecifikus életminőség-vizsgálatát lehetővé tevő, valid és megbízható eszköz mindeddig nem áll rendelkezésünkre.…”