Three percentage points fewer babies of mixed or multiple ethnic backgrounds had low birthweights than Asian babies, the largest difference between all ethnic groups.
Roedd gan dri phwynt canran yn llai o fabanod o gefndiroedd ethnig cymysg neu luosog bwysau geni isel o gymharu â babanod Asiaidd, sef y gwahaniaeth mwyaf rhwng yr holl grwpiau ethnig.