Validation of the diagnosis of necrotising enterocolitis in a Swedish population-based observational study.
Pontus ChallisLinn LarssonElisabeth Stoltz SjöströmFredrik SereniusMagnus DomellöfAnders ElfvinPublished in: Acta paediatrica (Oslo, Norway : 1992) (2018)
Validation of the incidence of NEC revealed over- and underestimation of NEC in the EXPRESS study despite carefully collected data. Similar problems may occur in other national data sets or quality registers.