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. 2016 Jan-Feb;31(1):7–14. doi: 10.5935/1678-9741.20160002

Table 6.

Descriptive values [mean ± standard deviation or n (%)] of the variables after pairing according to the study group.

  Paired Cohort (n=430)
  Diabetes  
Variables No (n=215) Yes (n=215) P value
Age 61±10 62±9 0.700[1]
Male sex 169 (78.6) 170 (79.1) 0.906[2]
Body mass index (kg/m2)      
    < 25 69 (32.1) 69 (32.1) 0.959[2]
    25-30 117 (54.4) 115 (53.5)  
    >30 29 (13.5) 31 (14.4)  
    Dyslipidemia 94 (43.7) 115 (53.5) 0.043[2]
    Chronic kidney disease 1 (0.5) 2 (0.9) 1.000[3]
    Hypertension 207 (96.3) 207 (96.3) 1.000[2]
    Previous stroke 4 (1.9) 2 (0.9) 0.685[3]
    Peripheral arterial disease 7 (3.3) 16 (7.4) 0.054[2]
    Cerebrovascular disease 4 (1.9) 4 (1.9) 1.000[3]
    Prior coronary artery bypass surgery 2 (0.9) 1 (0.5) 1.000[3]
    Previous acute myocardial infarction 94 (43.7) 104 (48.4) 0.333[2]
    Arrhythmia 11 (5.1) 7 (3.3) 0.336[2]
    Ejection fraction 67.2±9.7 65.1±12.5 0.230[1]
    EuroSCORE 2.1±1.7 1.9±1.4 0.811[4]
    Average blood glucose (24 hours) 170.7±27.2 192.0±32.1 <0.001[1]
    Higher value of blood glucose 219.5±49.4 263.1±52.8 <0.001[1]
    Use of intravenous insulin (24 hours) 39 (18.1) 63 (29.3) 0.007[2]
    Time spent in the intensive care unit 2.1±4.4 1.6±0.9 0.297[4]
    Time of hospitalization 11.6±19.7 9.8±10.6 0.088[4]
    Surgeries 5 (2.3) 2 (0.9) 0.449[3]
    Perioperative acute myocardial infarction 3 (1.4) _ 0.248[3]
    Cerebrovascular accident 1 (0.5) 3 (1.4) 0.623[3]
    Acute renal failure 2 (0.9) 3 (1.4) 1.000[3]
    Dialysis 1 (0.5) _ 1.000[3]
    Infections 14 (6.5) 16 (7.4) 0.705[2]
    Mediastinitis 4 (1.9) 3 (1.4) 1.000[3]
    Urinary tract infection 3 (1.4) 6 (2.8) 0.503[3]
    Prolonged mechanical ventilation 2 (0.9) _ 0.499[3]
    Pneumonia 6 (2.8) 6 (2.8) 1.000[2]
    Arrhythmia 32 (14.9) 31 (14.4) 0.892[2]
    Death within 30 days 5 (2.3) 3 (1.4) 0.724[3]
    Death within 1 year 12 (5.6) 7 (3.3) 0.245[2]
[1]

Descriptive level of probability by the Student's t-test.

[2]

Descriptive level of probability by the chi-square test.

[3]

Descriptive level of probability by the Fisher's exact test.

[4]

Descriptive level of probability by the nonparametric Mann-Whitney U-test.