Mae Gwaed a Thrawsblaniadau'r GIG wedi bod yn cynnal dadansoddiad o effaith Deddfwriaeth Gymreig ar gyfraddau cydsynio/awdurdodi ers 1 Ionawr 2016. Maen nhw wedi casglu data cronnol ar gyfraddau cydsynio yng Nghymru o gymharu â Lloegr.
NHS Blood and Transplant (NHSBT) have been undertaking an analysis of the effect of Welsh Legislation on consent/authorisation rates since 1 January 2016. They have collected cumulative data on consent rates in Wales compared to England.