De Jonghe’s Delta. In a group of patients with identified de novo mutations, the delta represents the fraction of individuals with genes that we already know from a different context, most likely family studies. Other fields of neurogenetic research do not have family data to compare with.
Ingo Helbig
Child Neurology Fellow and epilepsy genetics researcher at the Children’s Hospital of Philadelphia (CHOP), USA and Department of Neuropediatrics, Kiel, Germany