Table 1

Characteristics of CICU Admissions (N = 1,042)

Age, yrs65.9 (55.6–75.9)
Male647 (62)
BMI, kg/m227.4 (23.9–33.4)
Ethnicity
 Caucasian827 (79)
 African American187 (18)
Source of admission
 Emergency department455 (44)
 Outside hospital transfer369 (35)
 Direct admission218 (21)
Comorbidities
 Hypertension842 (81)
 Coronary artery disease762 (73)
 Hyperlipidemia702 (67)
 Arrhythmia674 (65)
 Heart failure621 (60)
 Diabetes452 (43)
 Chronic kidney disease398 (38)
 Tobacco abuse331 (32)
 Conduction disease296 (28)
 Valvular heart disease283 (27)
 Chronic pulmonary disease276 (27)
 Cardiomyopathy246 (24)
 Obesity245 (24)
 Pulmonary hypertension229 (22)
 Obstructive sleep apnea205 (20)
 Ischemic stroke186 (18)
 Malignancy154 (15)
 Alcohol abuse73 (7)
 Hyperthyroidism24 (2)
Type of admission
 Medical726 (70)
 Scheduled procedure267 (26)
 Unscheduled procedure49 (5)
NYHA functional classification
 I288 (30)
 II225 (23)
 III251 (26)
 IV208 (21)
 Not obtained70 (7)
Before admission medications
 Beta-blocker or calcium-channel blocker600 (58)
 Antiarrhythmic agent118 (11)
 Antiplatelet agent622 (60)
 Anticoagulation272 (26)
 Digoxin63 (6)
Severity of illness
 OASIS25 (20.0–30.0)
AF
 CHA2DS2-VASc score4.0 (3.0–5.0)
 CHA2DS2-VASc score ≥2944 (91)
 No AF502 (48)
 Known AF443 (43)
 New subclinical AF79 (7.6)
 New clinical AF18 (1.7)
Median days in CICU2.0 (1.0–4.0)
Median days in hospital6.0 (3.0–11.0)
CICU mortality69 (6.6)
Hospital mortality122 (12)
30-day readmission to hospital171 (19)

Values are median (range) or n (%).

AF = atrial fibrillation; BMI = body mass index; CHA2DS2-VASc = congestive heart failure, hypertension, age ≥75 years, diabetes mellitus, prior stroke, transient ischemic attack, or thromboembolism, vascular disease, age 65–74 years, sex category (female); CICU = coronary intensive care unit; NYHA = New York Heart Association; OASIS = Oxford Acute Severity of Illness Score.