However, a larger proportion of Asian babies had low birthweights than any other ethnic group in three out of the four years for which there is data available (starting in 2018).
Fodd bynnag, roedd gan gyfran fwy o fabanod Asiaidd bwysau geni isel nag unrhyw grŵp ethnig arall mewn tair allan o'r pedair blynedd y mae data ar gael ar eu cyfer (gan ddechrau yn 2018).