The most common form of referral was by school-based and other education staff, which accounted for over half of all referrals (56%) in 2020/21.
Atgyfeiriad gan staff ysgol a staff addysgol eraill oedd y math mwyaf cyffredin o atgyfeiriad, gan gyfrif am dros hanner yr holl atgyfeiriadau (56%) yn 2020/21.