Table 1.

Patients had complications and the onset time of complications

Complications (ICD-9-CM code)	Onset time (year)	Number of patients at time of occurring complications after heart transplantation
		Total	<1 year	1–3 years	4–6 years	>6 years
Complications after heart transplantation (996.83)	1.24 ± 1.61	259	163	65	23	8
Chronic kidney disease (580–9)	2.72 ± 2.10	49	12	17	15	5
Post-transplant malignancy (140–209)	1.89 ± 1.37	33	11	17	5	0

ICD-9-CM, International Classification of Disease, Ninth Revision, Clinical Modification.