RT Journal Article SR Electronic T1 Healthcare resource utilisation and medical costs for children with interstitial lung diseases (chILD) in Europe JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP 781 OP 789 DO 10.1136/thoraxjnl-2021-217751 VO 77 IS 8 A1 Elias Seidl A1 Nicolaus Schwerk A1 Julia Carlens A1 Martin Wetzke A1 Steve Cunningham A1 Nagehan Emiralioğlu A1 Nural Kiper A1 Joanna Lange A1 Katarzyna Krenke A1 Nicola Ullmann A1 Dora Krikovszky A1 the chILD-EU collaborators A1 Phillen Maqhuzu A1 Charlotte A Griese A1 Larissa Schwarzkopf A1 Matthias Griese YR 2022 UL http://thorax.bmj.com/content/77/8/781.abstract AB Background No data on healthcare utilisation and associated costs for the many rare entities of children’s interstitial lung diseases (chILD) exist. This paper portrays healthcare utilisation structures among individuals with chILD, provides a pan-European estimate of a 3-month interval per-capita costs and delineates crucial cost drivers.Methods Based on longitudinal healthcare resource utilisation pattern of 445 children included in the Kids Lung Register diagnosed with chILD across 10 European countries, we delineated direct medical and non-medical costs of care per 3-month interval. Country-specific utilisation patterns were assessed with a children-tailored modification of the validated FIMA questionnaire and valued by German unit costs. Costs of care and their drivers were subsequently identified via gamma-distributed generalised linear regression models.Results During the 3 months prior to inclusion into the registry (baseline), the rate of hospital admissions and inpatient days was high. Unadjusted direct medical per capita costs (€19 818) exceeded indirect (€1 907) and direct non-medical costs (€1 125) by far. Country-specific total costs ranged from €8 713 in Italy to €28 788 in Poland. Highest expenses were caused by the disease categories ‘diffuse parenchymal lung disease (DPLD)-diffuse developmental disorders’ (€45 536) and ‘DPLD-unclear in the non-neonate’ (€47 011). During a follow-up time of up to 5 years, direct medical costs dropped, whereas indirect costs and non-medical costs remained stable.Conclusions This is the first prospective, longitudinal study analysing healthcare resource utilisation and costs for chILD across different European countries. Our results indicate that chILD is associated with high utilisation of healthcare services, placing a substantial economic burden on health systems.Data are available upon reasonable request.