Recurrence Index

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Recurrence Index (RI) in genomics denotes the number of mutations per kilobase of a given genomic locus of a patient carrying particular mutations. RI represents a patient level recurrence frequency estimated for somatic mutations.{{cite journal|last1=Newman|first1=Aaron M|title=An ultrasensitive method for quantitating circulating tumor DNA with broad patient coverage|journal=Nature Medicine|date=2014|volume=20|issue=548|pmid=24705333|doi=10.1038/nm.3519|pmc=4016134|pages=548–54}}