Table 1.

Baseline characteristics of the study population

CharacteristicCKD (n=58)Normal Kidney Function (n=165)P Value
Demographics
 age (yr)71.4±11.761.6±11.8<0.001
 male sex26 (44.8)118 (71.5)<0.001
 race0.84
  white49 (84.4)135 (81.8)
  black5 (8.6)16 (9.7)
  other4 (6.9)14 (8.5)
Medical history
 diabetes24 (41.4)36 (21.8)0.01
 hyperlipidemia42 (72.4)97 (58.8)0.08
 hypertension52 (89.7)118 (71.5)0.004
 present smoking4 (6.9)47 (28.5)<0.001
 past smoking16 (27.6)41 (24.8)0.73
 prior myocardial infarction19 (32.8)25 (15.2)0.01
 family history of coronary artery disease14 (24.1)57 (34.5)0.19
 ESRD2 (3.8)0 (0.0)0.06
Laboratory data
 creatinine (mg/dl)2.0±1.90.9±0.2<0.001
 estimated GFR (ml/min per 1.73 m2)42.9±14.387.7±20.6<0.001
 ejection fraction (%)46.7±12.047.5±12.30.70
 peak creatine kinase (IU/L)380 (120–873)331 (116–788)0.82
Angiographic stenosis (%)
 culprit vessel76.5±0.2075.8±0.200.83
 nonculprit vessel53.8±0.2144.7±21.4<0.001
Infarct characteristics
 ST elevation myocardial infarction7 (12.1)46 (27.9)0.02
 infarct location0.46
  left main4 (6.9)4 (2.5)
  left anterior descending artery18 (31.0)46 (27.8)
  left circumflex artery18 (31.0)57 (34.5)
  right coronary artery16 (27.6)55 (33.3)
  ramus2 (3.4)3 (1.9)
Congestive heart failure on presentation5 (15.2)15 (16.1)1.00
  • Data are presented as n (%), mean ± SD, or median (interquartile range).