Swansea Bay had the lowest proportion of RTT pathways waiting longer than one year in January at 13.8% of pathways, while Betsi Cadwaladr had the highest at 27.7% of pathways.
Bae Abertawe oedd â’r gyfran isaf o lwybrau RTT a oedd yn aros mwy na blwyddyn ym mis Ionawr (13.8% o lwybrau), a Betsi Cadwaladr oedd â’r gyfran uchaf (27.7% o lwybrau).