Description of Figure 15: a heat map showing most attendances at emergency departments are during daylight hours, with much less activity night.
Disgrifiad o Ffigur 15: map gwres sy'n dangos bod y rhan fwyaf o bresenoldebau mewn adrannau argyfwng yn ystod y dydd, gyda llawer llai o weithgarwch gyda'r nos.