Industrial action taken by some ambulance services staff in February may have had an impact on the statistics for unscheduled care presented in this report.
Gall y gweithredu diwydiannol a gymerwyd gan staff rhai gwasanaethau ambiwlans ym mis Chwefror fod wedi effeithio ar yr ystadegau ar gyfer gofal heb ei drefnu a gyflwynir yn yr adroddiad hwn.