117 of the referrals were females (30%) and 266 were males (69%), 1 (less than 1.0%) was not specified or unknown.
Roedd 117 o’r atgyfeiriadau yn fenywod (30%) ac roedd 266 yn ddynion (69%), a doedd rhyw 1 (llai na 1.0%) heb ei nodi neu'n anhysbys.