RT Journal Article T1 Health-related quality of life in type 1 diabetes mellitus pediatric patients and their caregivers in Spain: an observational cross-sectional study. A1 Lopez-Bastida, Julio A1 Lopez-Siguero, Juan Pedro A1 Oliva-Moreno, Juan A1 Vazquez, Luis Alberto A1 Aranda-Reneo, Isaac A1 Reviriego, Jesus A1 Dilla, Tatiana A1 Perez-Nieves, Magaly K1 EQ-5D K1 PedsQL K1 Spain K1 Type 1 diabetes mellitus K1 health-related quality of life K1 pediatrics AB Objectives: This study assessed the health-related quality of life (HRQOL) of pediatric patients with type 1 diabetes mellitus (T1DM) and their caregivers.Methods: CHRYSTAL was an observational cross-sectional study conducted in Spain in 2014 on 275 patients under 18 years old diagnosed with T1DM. Patient/caregiver pairs were stratified by patients' HbA1c level (≥7.5% versus <7.5%), mean index scores were 0.94 and 0.95, andmean VAS scores were 82.8 and 89.2, respectively. Mean index scores were 0.91 for children with com-plications and/or comorbidities and 0.96 for children without. Mean VAS scores were 83.7 and 87.2,respectively. HRQOL per the PedsQL tool ranged from 68.1 (ages 2–4) to 73.1 (ages 13–18). EQ-5Dindex and VAS scores were significantly correlated (rho ¼ 0.29–0.43) with several age groups of thePedsQL. EQ-5D scales showed significant moderate correlation between EQ-5D-Y and EQ-5D-3L proxyVAS score (rho ¼ 0.45; p < .001).Conclusions: Patients with few complications and controlled HbA1c reported a relatively high HRQOL.The results suggest that parent-proxy EQ-5D ratings are valid for use as part of an overall health out-comes assessment in clinical studies of T1DM in pediatric patients PB Taylor & Francis YR 2019 FD 2019-04-05 LK http://hdl.handle.net/10668/13802 UL http://hdl.handle.net/10668/13802 LA en NO López-Bastida J, López-Siguero JP, Oliva-Moreno J, Vázquez LA, Aranda-Reneo I, Reviriego J, et al. Health-related quality of life in type 1 diabetes mellitus pediatric patients and their caregivers in Spain: an observational cross-sectional study. Curr Med Res Opin. 2019 Sep;35(9):1589-1595 DS RISalud RD Apr 14, 2025