When comparing staff groups, the rate ranged from 10.1% for healthcare assistants and other support workers to 1.9% for medical and dental staff.
o gymharu grwpiau staff, roedd y gyfradd yn amrywio o 9.0% ar gyfer cynorthwywyr gofal iechyd a staff cymorth eraill i 1.9% ar gyfer staff meddygol a deintyddol