Table 3.

Standardized incidence ratio (SIR) for malignancies developing between the date of each patient’s first recorded cardiac catheterization and 1st February 2014

Disease	Observed	Expected	SIR [IQR]
All patients
All malignancies	41	17.66	2.32 [1.65, 3.17]
Leukaemia	7	3.31	2.11 [0.82, 4.42]
Lymphoma	23	2.76	8.34 [5.22, 12.61]
Hodgkin lymphoma	4	1.67	2.40 [0.60, 6.27]
Non-Hodgkin lymphoma	19	1.09	17.45 [10.36, 27.50]
Central nervous system	4	3.71	1.08 [0.27, 2.82]
After censoring post-transplant patients
All malignancies	15	16.72	0.90 [0.49, 1.49]
Leukaemia	7	3.19	2.19 [0.85, 4.59]
Lymphoma	0	2.59	–
Hodgkin lymphoma	0	1.56	–
Non-Hodgkin lymphoma	0	1.03	–
Central nervous system	3	3.54	0.85 [0.15, 2.54]

IQR interquartile range