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Table 2 Univariate and multivariate analysis of factors predictive of outcomes

From: Neutrophil, lymphocyte and platelet ratio as a predictor of postoperative acute kidney injury in major abdominal surgery

 

AKI

Mortality

Unadjusted OR (95% CI)

P-value

Adjusted OR (95% CI)

P-value

Unadjusted OR (95% CI)

P-value

Adjusted OR (95% CI)

P-value

Preoperative characteristics

 Age

1.05 (1.04–1.07)

< 0.0001

1.04 (1.0 2-1.06)

< 0.0001

1.1 (1.06–1.2)

< 0.0001

1.10 (1.03–1.17)

0.003

 Male

1.5 (0.9–2.4)

0.07

  

1.1 (0.5–2.2)

0.887

  

 Caucasian

0.8 (0.3–2.3)

0.680

  

1.3 (1.2–9.7)

0.831

  

 Diabetes

0.046 (0.01–0.15)

0.363

  

0.01 (0.01–0.05)

0.839

  

 CVD

0.35 (0.2–0.5)

< 0.0001

0.23 (0.089–0.38)

0.002

0.115 (0.023–0.21)

0.14

  

 COPD

0.31 (0. 15-0.48)

< 0.0001

0.22 (0.07–0.37)

0.005

0.059 (0.001–0.158)

0.245

  

 Solid malignancy

1.9 (1. 2-2.9)

0.005

1.47 (0.85–2.54)

0.174

1.5 (0. 7-3.2)

0.287

  

 ASA physical status IV/V

2.5 (1. 2-4.9)

0.01

1.16 (0.49–2.78)

0.732

15.4 (6. 7-35.6)

< 0.0001

10.71 (2.90–39.54)

< 0.0001

 Hemoglobin (g/dL)

0.8 (0. 7-0.9)

< 0.0001

0.97 (0.82–1.14)

0.675

0.63 (0. 5-0.8)

< 0.0001

0.73 (0.51–1.04)

0.077

 Baseline SCr (mg/dL)

2.3 (1. 5-3.4)

< 0.0001

1.28 (0.78–2.12)

0.327

2.3 (1. 3-3.9)

0.003

0.56 (0. 24-1.30)

0.174

 Preoperative sepsis

3.52 (2.06–6.03)

< 0.0001

1.30 (0.63–2.66)

0.480

19.9 (8. 37-47.43)

< 0.0001

5.23 (1.46–18.75)

0.011

 Urgency surgery

0.3 (0. 8-2.1)

0.368

  

4.2 (1. 9-8.9)

< 0.0001

1.32 (0. 33-5.22)

0.693

Intraoperative characteristics

 Duration of anesthesia

1.02 (1-1.05)0.024

0.024

1.00 (1.00–1.00)

0.156

1.00 (0.997–1.004)

0.845

  

 Hypotension episodes

1.2 (1. 1-1.4)

0.001

1.10 (0.95–1.26)

0.203

1.46 (1. 27-1.69)

< 0.0001

1.52 (1. 16-1.98)

0.002

 Crystalloids with colloids

3 (1. 8-5)

< 0.0001

1.80 (0.97–3.33)

0.062

6.05 (1.80–20.29)

0.004

2.61 (0.43–15.68)

0.296

 Fluid balance

1.00 (1.00–1.001)

0.048

  

1.00 (1.00–1.001)

< 0.0001

  

 Erythrocytes (per unit)

3.7 (2. 4-5.8)

< 0.0001

2.27 (1.45–3.55)

< 0.0001

2.25 (1.49–3.40)

< 0.0001

1.22 (0.68–2.20)

0.508

 Vasoactive drugs use

1.8 (1. 1-3)

0.039

1.10 (0.58–2.11)

0.769

5.87 (2.70–12.74)

< 0.0001

4.08 (1. 21-13.78)

0.023

Post-operative characteristics

 NL/P (per point increase)

1.1 (1.04–1.16)

0.001

1.05 (1.00–1.10)

0.048

1.04 (0.995–1.106)

0.078

0.95 (0.84–1.08)

0.463

 NL/P > 4.86

2.4 (1.53–3.77)

< 0.0001

1.72 (1.04–2.87)

0.036

2.56 (1. 19-5.5)

0.178

1.16 (0. 38-3.5)

0.798

 AKI

    

11.19 (4.78–27.18)

< 0.0001

3.56 (1.02–12.43)

0.046