Abstract
The aim of this study was to translate and cross-culturally adapt the Insulin Delivery System Rating Questionnaire (IDSRQ) for Brazilian users. Validation and reliability analysis of measures were also performed. Methodological study comprising the following stages: forward translation, synthesis, back-translation, assessment by Expert Committee, pre-test and validation. International guidelines for translation and cross-cultural adaptation of measurement tools were followed. Validation data provided information about reliability (internal consistency, test-retest) and construct validity of the IDSRQ. Content validation by Experts' assessment was successful, with a mean Content Validity Index of 0.87 (±0.2). The IDSRQ validation study involved 113 T1DM patients, 46% male, mean age 32.61 (±12.59) years and mean age at diagnosis of diabetes of 17.51 (±12.41). The scale presented good internal consistency (Cronbach's alpha =0.786). The reliability analysis of the instrument was conducted by calculating the Intra-class Correlation Coefficient 0.885 (0.834-0.921), which indicated adequate concordance in all measures. The translated and cross-culturally adapted Brazilian Portuguese version of the IDSRQ may be used to assess health-related quality of life (HRQOL) and treatment preferences for insulin delivery systems in T1DM Brazilian patients.
Highlights
IntroductionThe World Health Organization (WHO) defines quality of life as perceived by the person’s own life situation within his/her cultural context and value system and in relation to his/her objectives and interests [3]
In the treatment of patients with chronic noncommunicable diseases, health care professionals should take into account both objective factors and subjective factors, such as sense of satisfaction with current and previous treatments [1,2].The World Health Organization (WHO) defines quality of life as perceived by the person’s own life situation within his/her cultural context and value system and in relation to his/her objectives and interests [3]
This aspect is important in the case of diabetes mellitus (DM), where treatment requires the patient’s major commitment, often with adjustments of his/her current lifestyle to requirements of the treatment [3,4]
Summary
The World Health Organization (WHO) defines quality of life as perceived by the person’s own life situation within his/her cultural context and value system and in relation to his/her objectives and interests [3]. This aspect is important in the case of diabetes mellitus (DM), where treatment requires the patient’s major commitment, often with adjustments of his/her current lifestyle to requirements of the treatment [3,4]. It includes measures that are both general (overall quality of life) and diabetes specific (perceived clinical efficacy, treatment satisfaction and burden, and diabetes-related worries and social burdens) [6]
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