One in three (34%) women aged 16 to 19 were recorded as smokers at initial assessment compared to around one in six (17%) women aged 25 to 29, and one in ten (11%) women aged 40 to 44.
Cofnodwyd bod un o bob tri (34%) o fenywod 16 i 19 oed yn smygwyr yn yr asesiad cychwynnol o gymharu ag oddeutu un o bob chwech (17%) o fenywod 25 i 29 oed, ac un o bob deg (11%) o fenywod 40-44 oed.