Table 1.

Physician subspecialty performing PPM and ICD implantations in the years 2013 to 2020

	2013	2014	2015	2016	2017	2018	2019	2020
Subspecialty of operator performing PPM implantations
Cardiac electrophysiology	28.9	32.7	37.5	42.9	45.9	48.9	50.6	53.8
Cardiothoracic surgery	4.6	3.7	3.3	2.7	2.4	2.4	2.0	1.8
Other cardiology	60.6	58.5	53.9	49.8	47.1	44.2	42.4	39.5
Internal medicine	2.7	2.5	2.5	1.9	2.1	2.1	2.4	2.1
Other surgery	2.6	1.9	2.0	1.7	1.5	1.0	0.9	0.9
Subspeciality of operator performing ICD implantations
Cardiac electrophysiology	46.1	49.7	55.9	60.2	63.7	66.5	69.3	70.4
Cardiothoracic surgery	1.3	1.6	1.2	0.7	0.9	0.5	0.6	0.4
Other cardiology	49.4	45.7	39.9	36.0	31.8	29.5	26.1	24.5
Internal medicine	2.8	2.5	2.3	1.0	2.1	1.7	2.2	1.9
Other surgery	0.1	0.2	0.1	0.0	0.1	0.0	0.0	0.1

Values are %.

ICD = implantable cardioverter-defibrillator; PPM = permanent pacemaker.