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Table 2 Univariate analysis of hospital mortality

From: Hyperlactatemia of dialysis-dependent patients after cardiac surgery impacts on in-hospital mortality: a two-center retrospective study

 Survivor (n = 108)Non-survivor (n = 14)Odds ratio
Unadjusted95% CIp value
Lactate value     
 T1 (mmol/L)1.5 (1.2, 2.1)3.3 (1.8, 6.4)4.181.91-10.0<0.001
 T2 (mmol/L)2.9 (2.0, 4.0)6.4 (4.8, 10.0)10.13.6-37.7<0.001
 T3 (mmol/L)1.6 (1.2, 2.1)2.4 (1.7, 4.0)4.381.78-12.430.002
 Peak time (hours)8.0 (4.8, 14.0)7.5 (4.0, 9.8)0.980.91-1.060.75
Age73 (69,77)75 (69, 82)1.050.98-1.150.18
Sex (male)77 (71%)9 (64.2%)0.720.23-2.510.58
EF (%)49 (37, 64)56 (44, 60)1.010.97-1.050.76
Years on dialysis9 (3.5, 13.3)13 (10, 17.8)1.071.00-1.140.04
Preoperative complications   
 DM45 (42%)5 (36%)0.780.22-2.440.67
 Afib30 (28%)5 (36%)1.440.41-4.540.54
 CI35 (32%)9 (65%)3.751.20-13.00.03
 CAD27 (25%)4 (29%)1.200.30-3.920.77
 ASO25 (23%)6 (43%)2.490.75-7.850.12
Cause of renal failure   
 DM37 (33%)6 (43%)1.440.44-4.440.52
Procedure     
 Valve48 (45%)5 (36%)1.00  
 CABG11 (10%)1 (7%)0.870.04-6.170.91
 TAR3 (3%)0 (0%)0.00NA0.99
 Complicated31 (29%)6 (43%)1.850.51-6.950.34
 Other15 (14%)2 (14%)1.280.17-6.640.78
Operating time (min)324 (241, 395)468 (343, 519)1.011.00-1.010.001
CBP time (min)176 (140, 231)242 (187, 354)1.011.00-1.010.003
Clamp time (min)130 (91, 172)170 (139, 278)1.011.00-1.020.003
Adrenaline (yes)9 (8%)5 (36%)6.111.60-22.120.006
CHDF (yes)86 (20%)7 (50%)3.91.22-12.600.02
  1. Data are presented as number (%), or median (1st quartile–3rd quartile)
  2. T1 lactate at ICU admission, T2 the maximum level of lactate within 24 h postoperatively, T3 lactate at 24 h after ICU admission, EF ejection fraction, DM diabetes mellitus, Afib atrial fibrillation, CAD coronary artery disease, CI cerebral ischemia, ASO arteriosclerosis obliterans, CABG coronary artery bypass graft, TAR total arch replacement, CPB cardiopulmonary bypass, CHDF continuous hemodiafiltration