Table 1.

Basic patient demographic characteristics, classified with estimated GFR or proteinuria

All (n = 1052)CKD StageProteinuria on Dipstick
Preserved eGFR (n = 631)Stage 3 (n = 359)Stage 4 (n = 62)None (n = 599)Mild (n = 315)Heavy (n = 138)
Patient characteristics
    male gender75.7%82.4%68.2%c50.0%c80.0%73.7%a61.6%c
    age (years)65.7 ± 11.063.2 ± 11.369.7 ± 9.0c67.7 ± 11.5b64.8 ± 11.367.2 ± 10.4b66.0 ± 10.8
    BMI (kg/m2)25.0 ± 4.125.1 ± 3.625.0 ± 4.824.4 ± 5.325.1 ± 3.725.3 ± 4.424.7 ± 5.3a
Comorbidities
    LVEF <60%47.6%42.6%51.0%a79.0%c41.7%51.4%b64.5%c
    hypertension66.5%64.2%70.5%a67.7%65.4%66.7%71.0%
    DM41.2%35.0%47.9%c64.5%c32.4%44.4%c71.7%c
    PAD8.7%6.7%9.5%25.8%c6.5%8.6%18.8%c
    CVA2.1%1.6%2.8%3.2%1.8%2.9%1.4%
    CHF14.0%10.1%17.5%b32.3%c9.0%17.5%c27.5%c
    COPD8.0%7.3%9.5%6.5%7.5%10.5%4.3%
    recent MI18.8%16.6%20.6%30.6%b15.9%24.1%b19.6%
Perioperative condition
    vasopressor dependence3.6%2.7%4.2%9.7%2.2%5.7%b5.1%
    IABP8.0%6.8%9.2%12.9%6.7%7.9%13.8%b
    ECMO3.9%3.0%4.7%8.1%2.8%4.8%6.5%a
    nonelective surgery12.6%11.1%14.4%17.7%a8.2%18.6%c18.1%b
    cardiopulmonary bypass13.9%12.2%15.0%24.2%a11.5%16.5%a18.1%a
    aortic cross clamp time (min), (n)105 ± 4280 ± 38104 ± 60105 ± 25109 ± 69109 ± 4098 ± 29
(34)1813313165
    cardiopulmonary bypass (min), (n)127 ± 57128 ± 52125 ± 73129 ± 47127 ± 62130 ± 66122 ± 35
(146)814916635528
Preoperative laboratory data
    creatinine (mg/dl)1.26 ± 0.471.01 ± 0.161.47 ± 0.39c2.60 ± 0.53c1.16 ± 0.361.28 ± 0.42c1.67 ± 0.71c
    eGFR (MDRD)64.5 ± 21.578.0 ± 14.847.7 ± 8.5c23.6 ± 4.0c69.6 ± 19.161.9 ± 21.5c48.4 ± 22.4c
    hemoglobin (g/dl)12.9 ± 1.9213.4 ± 1.612.4 ± 2.1c11.2 ± 1.9c13.2 ± 1.812.9 ± 2.0a11.9 ± 2.1c
  • COPD, chronic obstructive pulmonary disease. Comparison of demographic characteristics of patients with preserved estimated GFR (≥60 ml/min per 1.73 m2) or no proteinuria:

  • aP < 0.05.

  • bP < 0.01.

  • cP < 0.001.