Evaluating the Swedish translation of the type 1 diabetes specific health-related quality of life questionnaire in young adults
Year: 2025
Type: article
Abstract: Introduction: Young adults living with type 1 diabetes face unique challenges as they transition to greater independence, balancing diabetes management in all other dimensions of life. In Sweden, the transfer from pediatric to adult diabetes care at the age of 18 adds to these challenges. This study aimed to translate and evaluate the Swedish version of the T1DAL (Type 1 Diabetes and Life) self-report questionnaire for young adults living with type 1 diabetes. Method and Materials: The T1DAL questionnaire was translated into Swedish and was completed by 191 young adults aged 18-25 who were registered at a diabetes clinic in three Swedish hospitals. An expert group tested content validity. To determine the number of underlying factors, a parallel analysis (PA) was conducted. The questionnaire's latent structure was further examined through exploratory factor analysis, in which the items were constrained to a four-factor solution as recommended and found in the original version. Results: The content validity index of the total score was 0.94. The response distribution analysis revealed the presence of floor or ceiling effects. An EFA with a four-factor solution was conducted, yielding a Model Fit Measure with a χ² of 326.68 and df = 249, resulting in a cmin/df of 1.31, an RMSEA of 0.04, and a TLI of 0.92. Internal consistency was assessed for the subscales suggested by the factor structure, based on the items that loaded onto each factor. Cronbach's alpha values ranged from 0.75 to 0.89, indicating acceptable to high internal consistency. The four-factor solution explained 45.04% of the total variance. Conclusion: The Swedish T1DAL questionnaire showed good factorial validity and reliability. The Swedish version requires further testing with potential item reduction; however, it is still expected to be valuable in assessing health-related quality of life among young adults living with type 1 diabetes. Clinical implications: The Swedish T1DAL questionnaire, particularly its domains related to emotional experiences, managing diabetes effectively, and peer relationships outlines the characteristics of young adulthood and can be used to empower the target group, and is expected to be feasible to implement in clinical practice.
Institutions: Umeå University, Hospital Universitario de La Princesa
Language: English
Subfield: Endocrinology, Diabetes and Metabolism
Field: Medicine
Domain: Health Sciences
Open Access status: gold
Estimated APC paid: $2,353
OpenAlex ID: W4416975902