Three out of ten (31%) pregnant women had a BMI of 30 or greater at their initial assessment, an increase of one percentage point from the previous year.
Roedd gan dair o bob deg (31%) o fenywod beichiog BMI o 30 neu fwy yn eu hasesiad cychwynnol, sef cynnydd o un pwynt canran ers y flwyddyn flaenorol.