Rhondda Cynon Taf are piloting a new health visiting model which means that data between 2020-21 and 2023-24 are collected on a different basis to previous years.
Mae Rhondda Cynon Taf yn treialu model newydd ar gyfer ymweliadau iechyd, sy’n golygu bod data rhwng 2020-21 a 2023-24 yn cael eu casglu ar sail wahanol i flynyddoedd blaenorol.