Table 1

Comorbidities Included in the Analysis

<2 Comorbidities (n = 830)≥2 Comorbidities (n = 2,518)
Control (n = 388)ICD (n = 442)Control (n = 1,189)ICD (n = 1,329)
Smoking221 (58)211 (48)1,047 (89)1,165 (88)
Ischemic heart disease55 (14)77 (17)877 (74)1,041 (79)
Chronic kidney disease15 (6)17 (6)484 (46)524 (43)
Diabetes20 (5)33 (8)462 (39)476 (36)
Pulmonary disease2 (1)12 (3)180 (26)183 (28)
Atrial fibrillation6 (2)8 (2)97 (14)103 (16)
Peripheral vascular disease0 (0)0 (0)20 (10)18 (10)

Values are n (%).

ICD = implantable cardioverter-defibrillator.