Table 4 Odds ratios (95% confidence intervals) and their P-values according to the categorized intraoperative urine flow rate with different cutoffs determined by both the univariable and multivariable logistic regression analysis for acute kidney injury of all stages after partial and radical nephrectomy.

From: The association between intraoperative urine output and postoperative acute kidney injury differs between partial and radical nephrectomy

Cutoff

Unadjusted OR (95% CI)

P-value

Adjusted OR (95% CI)

P-value

Partial nephrectomy

<3.0 ml/kg/h

0.83 (0.38–1.78)

0.626

0.89 (0.33–2.43)

0.822

<2.5 ml/kg/h

0.90 (0.46–1.77)

0.754

0.75 (0.32–1.73)

0.498

<2.0 ml/kg/h

1.17 (0.61–2.23)

0.644

1.10 (0.50–2.40)

0.819

<1.5 ml/kg/h

0.86 (0.50–1.48)

0.592

0.77 (0.41–1.47)

0.429

<1.0 ml/kg/h

0.92 (0.55–1.56)

0.756

0.86 (0.47–1.60)

0.642

<0.5 ml/kg/h

0.56 (0.27–1.18)

0.127

0.58 (0.24–1.41)

0.577

<0.3 ml/kg/h

0.73 (0.32–1.67)

0.450

0.89 (0.33–2.43)

0.822

Radical nephrectomy

<3.0 ml/kg/h

1.69 (0.73–3.91)

0.223

1.58 (0.57–4.38)

0.377

<2.5 ml/kg/h

1.34 (0.66–2.72)

0.425

1.08 (0.46–2.53)

0.859

<2.0 ml/kg/h

0.98 (0.53–1.83)

0.958

0.79 (0.37–1.66)

0.527

<1.5 ml/kg/h

1.36 (0.79–2.34)

0.272

1.16 (0.60–2.23)

0.663

<1.0 ml/kg/h

1.86 (1.14–3.04)

0.013

1.72 (1.22–2.86)

0.035

<0.5 ml/kg/h

1.74 (1.02–2.96)

0.041

1.88 (1.15–3.69)

0.040

<0.3 ml/kg/h

2.05 (1.08–3.88)

0.028

2.00 (1.10–4.14)

0.044

  1. OR = odds ratio, CI = confidence interval. In multivariable logistic regression analysis, all the covariates used in Table 2 were considered.