Diabetes representations on adherence and quality of life: Do parents and adolescents differ?

Type 1 diabetes is one of the most frequent chronic diseases in adolescents. To manage diabetes and prevent complications, a set of self-care behaviors needs to be implemented into family daily routines. This study analyzed diabetes representations in adolescents and their parents, the dissimilarities between them, and the relationship between illness dissimilarities and adherence/quality of life (QoL) in adolescents with type 1 diabetes. The sample included 200 participants: 100 adolescents with type 1 diabetes and 100 parents who accompanied the adolescents. Adolescents were assessed on adherence (Self-Care Inventory-Revised), quality of life (Diabetes QoL) and family support (Diabetes Family Behavior Scale). Both adolescents and parents were assessed on illness representations (Brief-Illness Perception Questionnaire). Dissimilarities in illness representations between parents and adolescents were performed using Olsen et al's proposal. Parents showed a more negative representation of diabetes than adolescents. Adolescents' illness representations, the dissimilarities between adolescents' and parents' illness representations, and family support were associated with adolescents' adherence and QoL. Higher family support moderated the relationship between the dissimilarity in timeline representations and QoL, explaining 17.8% of the variance on QoL. Adolescent's  gender (male) was a moderator in the relationship between adolescent's coherence and QoL, explaining 18.6% of the variance on QoL. Adolescent's gender (female) was a moderator in the relationship between timeline and QoL, explaining 11.9% of the variance on QoL. Being a male parent was a moderator in the relationship between adolescent's concerns and QoL, explaining 13.5% of the variance on QoL. Intervention programs should focus on illness representations, particularly on the dissimilarities between adolescents and parents, as well as on family support in order to promote adolescents' adherence and QoL.