It aims to understand more fully where those differences originate and to establish what can be done to improve the risk and protection profile for all young people growing up in Wales.
Nod yr ymchwil yw ennyn gwell dealltwriaeth o'r gwahaniaethau a phennu'r hyn y gellir ei wneud i wella'r sefyllfa ar gyfer yr holl bobl ifanc yng Nghymru.