Roedd gaeaf y llynedd yn fwynach ac yn llai eithafol na'r gaeaf blaenorol, ond roedd lefelau gweithgarwch ar gyfer gwasanaethau allweddol yn dal i fod yn uchel ar adegau prysuraf y tymor. Gwelsom fwy o bobl yn mynd i adrannau brys, gan gynnwys mwy o bobl hŷn ac eiddil ag anghenion acíwt. Gwelsom hefyd gynnydd mewn salwch anadlol acíwt ac achosion o salwch gastroberfeddol mewn ysbytai.
Last winter was milder and less severe than the previous winter, though activity levels for key services remained high at key points of the season. We saw more people attending emergency departments, including a greater number of older frail people self-presenting with acute needs at Emergency Departments (ED), and an increase in both acute respiratory illness (ARI) and gastrointestinal illness outbreaks in hospitals.