Table 3. Risk factors for selected cancer in transplanted recipients.

	Head and neck		Liver		Bladder		Kidney1		NHL		ALL
	HR	p-value	HR	p-value	HR	p-value	HR	p-value	HR	p-value	HR	p-value
Age at transplant (years)	1.03	0.07	1.05	<0.001	1.06	<0.001	1.04	<0.001	0.97	<0.01	1.04	<0.001
Sex
Male	1	(ref)	1	(ref)	1	(ref)	1	(ref)	1	(ref)	1	(ref)
Female	0.18	0.02	0.53	0.03	2.29	<0.01	3.52	<0.001	0.70	0.40	1.01	0.95
Calendar year of transplantation	1.24	0.06	0.90	0.03	0.94	0.23	0.87	0.02	0.86	0.04	0.95	0.03
Transplanted organ
Heart	1	(ref)	1	(ref)	1	(ref)			1	(ref)	1	(ref)
Kidney	0.25	0.07	2.38	0.16	11.90	0.01			0.23	<0.01	1.31	0.15
Liver	2.13	0.18	7.05	<0.01	1.08	0.95			0.55	0.23	1.52	0.04

HR = hazard ratio.

¹The kidney cancers were all contributed from kidney transplantations and the model was adjusted for age at transplant (years), sex and calendar year of transplantation.