RT Journal Article T1 Vitamin D Status in Pediatric and Young Adult Cystic Fibrosis Patients. Are the New Recommendations Effective? A1 Mangas-Sanchez, Carmen A1 Garriga-Garcia, Maria A1 Serrano-Nieto, Maria Juliana A1 Garcia-Romero, Ruth A1 alvarez-Beltran, Marina A1 Crehua-Gaudiza, Elena A1 Munoz-Codoceo, Rosana A1 Suarez-Cortina, Lucrecia A1 Vicente-Santamaria, Saioa A1 Martinez-Costa, Cecilia A1 Diaz-Martin, Juan Jose A1 Bousono-Garcia, Carlos A1 Gonzalez-Jimenez, David K1 vitamin D K1 cystic fibrosis K1 multicenter study K1 D insufficiency K1 D deficiency K1 Children K1 Cholecalciferol K1 Ergocalciferol AB Introduction: In recent years, guidelines for vitamin D supplementation have been updated and prophylactic recommended doses have been increased in patients with cystic fibrosis (CF). Objective: To evaluate safety and efficacy of these new recommendations. Results: Two cohorts of pancreatic insufficient CF patients were compared before (cohort 1: 179 patients) and after (cohort 2: 71 patients) American CF Foundation and European CF Society recommendations were published. Cohort 2 patients received higher Vitamin D doses: 1509 (1306-1711 95% CI) vs 1084 (983-1184 95% CI) IU/Day (p PB Mdpi YR 2021 FD 2021-12-01 LK https://hdl.handle.net/10668/24437 UL https://hdl.handle.net/10668/24437 LA en DS RISalud RD Apr 6, 2025