Table 1: Characteristics of patients with or without 30-day readmission.

Characteristic30-day readmission
NoYes value

Number of patients (2,176)1,917259
 Age 0.740
 BMI 0.585
 Type 2 diabetes mellitus31.537.10.070
 Vascular disease27.330.90.224
 History of dialysis2.45.00.015
Cardiac history
 Recent MI17.313.10.091
 Prior CABG3.92.70.337
 Prior valve1.51.90.611
 Prior PCI18.217.40.760
 NYHA Class IV15.615.40.949
Cardiac anatomy and function
 Left main disease ≥50%28.820.90.007
 Single-vessel disease33.542.60.002
 Two-vessel disease28.530.2
 Three-vessel disease38.127.3
 Ejection fraction
White blood cell count (in 1,000's, mm3)

COPD: chronic obstructive pulmonary disease; MI: myocardial infarction; CHF: congestive heart failure; CABG: coronary artery bypass graft surgery; PCI: percutaneous coronary intervention; WBC: white blood cell; eGFR: estimated glomerular filtration rate.