Translation, validation, and construct reliability of a Portuguese version of the Xerostomia Inventory

Mata, António; Marques, Duarte; Freitas, Fmf; Amaral, JP de Almeida Rato; Trindade, Rtvmr; Barcelos, Fad; Patto, José Vaz

doi:10.1111/j.1601-0825.2011.01879.x

Cited by 47 publications

(57 citation statements)

References 21 publications

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“…Meanwhile, a relatively large proportion of the MHD patients in our study had a dry mouth (69%), which was in agreement with previous studies [16,22]. But the xerostomia scores in MHD patients in our study were lower than patients in other studies [16,23]. MHD patients might have a light dipsia of lower degree, which might cause a lower score in XI xerostomia score.…”

Section: Discussionsupporting

confidence: 90%

Study on the Clinical Significance and Related Factors of Thirst and Xerostomia in Maintenance Hemodialysis Patients

Fan

Zhang

Luo

et al. 2013

Kidney Blood Press Res

110

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Aims: To analyse the clinical significance and related factors of thirst and xerostomia and to find methods to alleviate thirst and xerostomia in maintenance hemodialysis (MHD) patients. Methods: Forty-two MHD patients were included for observational study and eleven patients were enrolled for crossover trial. Thirst was assessed by 100-mm visual analog scales (VAS) and dialysis thirst inventory (DTI). Meanwhile, xerostomia was assessed by VAS and xerostomia inventory (XI). Depression, kidney disease quality of life (KDQOL), salivary flow rates and inter dialytic weight gain (IDWG) were measured. Data were analyzed by ANOVA and correlation coefficient was used to assess the correlations between continuous variables. The results of crossover trial were investigated by two-sample T-tests. Results: Strong positive correlations among DTI, VAS thirst score, XI and VAS xerostomia score were found (P=0.000). Daily IDWG was positively correlated with VAS thirst score (r=0.315, P=0.042) and DTI(r=0.391, P=0.010). UWS (unstimulated whole saliva) was negatively correlated with VAS xerostomia score (r=-0.308, P=0.048). Residual urine output was negatively correlated with DTI (r=-0.402, P=0.008), VAS xerostomia score (r=-0.461, P=0.002) and XI (r=-0.403, P=0.008). In the crossover trial, DTI, XI, IDWG2d, IDWG3d, VAS thirst and xerostomia score were significantly reduced by the use of chewing gum (P=0.000, 0.001, 0.009, 0.017, 0.038, 0.001). The VAS thirst score, DTI and IDWG3d were significantly reduced by receiveing straw (P=0.016, 0.003, 0.049). Conclusion: Thirst and xerostomia might affect the quality of life in MHD patients. Both chewing gum and straw could decrease thirst and IDWG.

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Section: Discussionsupporting

confidence: 90%

Study on the Clinical Significance and Related Factors of Thirst and Xerostomia in Maintenance Hemodialysis Patients

Fan

Zhang

Luo

et al. 2013

Kidney Blood Press Res

110

View full text Add to dashboard Cite

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“…Being a subjective sensation, several questionnaires have been created for the measurement of the degree of Xerostomia, and these range from a single item up to an 11‐item questionnaire . The single‐item question has arisen first, but is limited .…”

Section: Introductionmentioning

confidence: 99%

Validity and reliability of a Portuguese version of the Summated Xerostomia Inventory‐5

et al. 2017

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“…The XI and the SXI have been translated and validated in different languages and populations. da Mata et al () validated both versions in a Portuguese population suffering from Sjogren's syndrome. He et al () validated the SXI in his Chinese population in a cohort mainly suffering from drug‐induced xerostomia.…”

Section: Discussionmentioning

confidence: 99%

“…Due to differences in social structures, culture, and language, health questionnaires must be cross‐culturally adapted and validated in order to retain the psychometric properties of the original questionnaire (Guillemin, Bombardier, & Beaton, ). Both the XI and SXI have been adapted and validated in several languages and patient populations (Amaral, Marques, Thomson, Vinagre, & Mata, ; da Mata et al, ; He, Wang, & Li, ) but there is still no disease‐specific instrument for xerostomia in the German language. Accordingly, we translated the XI and SXI into German versions according to internationally accepted guidelines and evaluated the validity, reliability, and responsiveness of the translated versions for cross‐cultural validation (Mokkink et al, ).…”

Section: Introductionmentioning

confidence: 99%

Validating the Xerostomia Inventory in a radiation‐induced xerostomia population in German language

et al. 2019

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Objectives Though xerostomia is a frequent oral symptom, there is no validated disease‐specific questionnaire in German. The purpose of this study was to translate and validate versions of the Xerostomia Inventory and the Summated Xerostomia Inventory in a German‐speaking population. Participants and Methods Thirty‐nine patients including 18 patients suffering from radiation‐induced xerostomia enrolled in this study. Both questionnaires were translated into German language according to international accepted guidelines. For validation, we evaluated reliability, validity, and responsiveness using the COSMIN manual for cross‐cultural adaptation. Results Cronbach's α was 0.92 for XI and 0.91 for SXI, showing both high internal consistency. Patients suffering from xerostomia showed significantly higher average scores demonstrating its discriminant validity. Confirmatory factor analysis showed excellent “goodness‐of‐fit” values for SXI and good to moderate values for XI, confirming the assumed factor structures. The Xerostomia Inventory and its summated version both showed excellent test–retest reliability in the non‐xerostomia group (ICC = 0.85 and 0.84). Conclusions The XI and SXI in their cross‐cultural adapted versions are the first validated self‐report assessments for xerostomia in German language. They are characterized by practical design and can be easily interpreted by the treating physician.

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Translation, validation, and construct reliability of a Portuguese version of the Xerostomia Inventory

Abstract: The Portuguese version of the XI can be considered a reliable and valid instrument to measure patients' xerostomia symptoms.

Cited by 47 publications

References 21 publications

Study on the Clinical Significance and Related Factors of Thirst and Xerostomia in Maintenance Hemodialysis Patients

Study on the Clinical Significance and Related Factors of Thirst and Xerostomia in Maintenance Hemodialysis Patients

Validity and reliability of a Portuguese version of the Summated Xerostomia Inventory‐5

Validating the Xerostomia Inventory in a radiation‐induced xerostomia population in German language

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