589 patients (45%) were detained under the Mental Health Act 1983 and other legislation, a decrease of 39 (6%) from 2017 but an increase of 82 (16%) from 2008.
Cafodd 589 o gleifion eu cadw dan y Ddeddf Iechyd Meddwl 1983 a deddfwriaeth arall, gostyngiad o 39 (6%) ers 2017 ond cynnydd o 82 (16%) ers 2008.