Rhondda Cynon Taf are piloting a new health visiting model which means that data for 2020-21 and 2021-22 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 2020-21 a 2021-22 yn cael eu casglu ar sail wahanol i flynyddoedd blaenorol.