In 2022, 23,541 pregnant women had their initial assessment by 14 weeks gestation, and of these 5,635 had missing or invalid data recorded for these data items.
Yn 2022, cafodd 23,541 o fenywod beichiog eu hasesiad cychwynnol erbyn 14eg wythnos y beichiogrwydd, ac yn achos 5,635 ohonynt cofnodwyd bod data ar goll neu’n annilys ar gyfer yr eitemau data hyn.