4,768 (43.84%) Welsh resident treated smokers were CO-validated as successfully quitting at 4 weeks post quit date.
Cadarnhawyd drwy fonitro carbon monocsid bod 4,768 (43.84%) o’r ysmygwyr sy’n byw yng Nghymru a gafodd driniaeth yn dal i lwyddo i roi’r gorau iddi 4 wythnos ar ôl y dyddiad rhoi’r gorau i ysmygu.