Table 3.

Seasonal variation in kidney transplants using organs from donors after circulatory death

Cause of death in the donor	n	P value for whether donation varied across the year
Intracranial/cerebrovascular causes	2467	0.60
Hypoxic brain damage	1216	0.16
Trauma	562	<0.01
Infective causes	107	0.05
Cardiovascular	166	0.88
Respiratory/pulmonary causes	185	0.25
Brain tumours	31	0.07
Poisoning/drug overdose	29	<0.01
Other/unknown	228	<0.01

All donations after circulatory death over a 10-year period were split into groups according to aetiology defined by NHS Blood and Transplant. The incidence for a minority (3/9) of causes varied significantly during the year.