Data is sourced from the National Community Child Health Database (NCCHD) and supplements the annual statistical report published on the Healthy Child Wales Programme.
Daw'r data o’r Gronfa Ddata Genedlaethol ar Iechyd Plant Cymunedol ac mae’n ychwanegu at yr adroddiad ystadegol blynyddol a gyhoeddwyd ar y Rhaglen Plant Iach Cymru.