Skip to main content

Table 4 Univariate and multivariate analysis with underestimation of serum creatinine as the outcome variable

From: Hemodilution is associated with underestimation of serum creatinine in cardiac surgery patients: a retrospective analysis

Variable

Univariate analysis

Multivariate analysis

HR (95% CI)

P value

HR (95% CI)

P value

Sex, Male

1.44 (1.12–1.85)

0.004

  

BMI (per 1 kg/m2 increase)

1.01 (0.96–1.06)

0.723

  

Age (per 1 unit increase)

1.05 (1.04–1.60)

< 0.001

1.05 (1.01–1.10)

0.035

Hypertension (present)

1.81 (1.41–2.33)

< 0.001

  

Diabetes (present)

2.71 (1.93–3.81)

< 0.001

  

CKD (present)

2.10 (0.72–6.10)

0.172

  

NYHA III-IV (present)

2.02 (1.56–2.61)

< 0.001

  

Preoperative SCr (per 1 μmol/L increase)

1.01 (1.01–1.02)

< 0.001

1.05 (1.03–1.08)

0.000

LVEF (per 1 unit decrease)

1.02 (1.01–1.04)

0.010

1.10 (1.04–1.17)

0.001

Off-pump surgery (present)

5.35 (4.03–7.09)

< 0.001

  

CPB (per 1 min increase)

1.00 (1.00–1.01)

0.061

  

Aortic cross-clamp (per 1 min increase)

1.01 (1.00–1.01)

0.014

  

Oliguria (present)

1.87 (0.66–5.29)

0.239

  

Cumulative fluid balance (per 1 L increase

1.00 (1.00–1.01)

< 0.001

1.007 (1.005–1.009)

0.000