Contextual information shows that until the COVID-19 pandemic, median waiting times had been relatively stable for diagnostic tests since 2017 and for therapy services since 2018.
Hyd at bandemig COVID-19, mae gwybodaeth gyd-destunol yn dangos bod canolrif yr amseroedd aros ar gyfer profion diagnostig yn weddol sefydlog ers 2017 ac ar gyfer gwasanaethau therapi ers 2018.