Table 1.

Seasonal variation in kidney transplants using organs from deceased donors

Cause of death in the donor	n	P value for whether donation varied across the year
Intracranial/cerebrovascular causes	9452	<0.01
Hypoxic brain damage	2448	<0.01
Trauma	1532	<0.01
Infective causes	367	<0.01
Cardiovascular	237	0.13
Respiratory/pulmonary causes	192	0.17
Brain tumours	180	0.14
Poisoning/drug overdose	55	0.03
Organ failure (various causes)	53	<0.01
Other/unknown	578	0.01

All deceased donations over a 10-year period were split into groups according to aetiology defined by NHS Blood and Transplant. The incidence for the majority (7/10) of causes varied significantly during the year.