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Table 2 Models to predict postoperative AKI; aOR, adjusted odds ratio; CI, confidence interval;

From: Threshold heterogeneity of perioperative hemoglobin drop for acute kidney injury after noncardiac surgery: a propensity score weighting analysis

 

Patient/operative variables only

Patient/operative variables and HGBd

aOR (95% CI)

P-value

aOR (95% CI)

P-value

Gender, (female)

1.32 (1.18—1.45)

 < .001

1.33 (1.19—1.46)

 < .001

Age, (< 40 yr)

reference

 < .001

reference

 < .001

 40—50

1.44 (1.13—1.75)

1.45 (1.14—1.77)

 50—60

1.53 (1.22—1.84)

1.55 (1.24—1.86)

 60—70

1.32 (1.06—1.59)

1.34 (1.07—1.60)

  > 70

1.86 (1.50—2.23)

1.88 (1.51—2.24)

Body mass index, (18.5–24.9 kg/m2)

reference

 < .001

reference

 < .001

  < 18.5

1.46 (1.17—1.75)

1.45 (1.16—1.74)

 25.0–29.9

1.12 (1.00—1.24)

1.13 (1.00—1.25)

  > 30.0

1.29 (1.12—1.47)

1.32 (1.14—1.49)

Hypertension

1.00 (0.86—1.14)

0.992

1.01 (0.87—1.15)

0.909

Preoperative hemoglobin level, 130 – 140 g/L

reference

 < .001

reference

 < .001

  < 110

2.02 (1.71—2.34)

2.11 (1.78—2.44)

 110—120

1.25 (1.02—1.47)

1.27 (1.04—1.50)

 120—130

0.98 (0.82—1.15)

0.99 (0.83—1.16)

  > 140

1.26 (1.09—1.44)

1.24 (1.07—1.41)

Preoperative albumin level, > 40 mg/L

1.76 (1.58—1.94)

 < .001

1.77 (1.59—1.95)

 < .001

Cancer to benign surgery

1.45 (1.30—1.59)

 < .001

1.43 (1.28—1.57)

 < .001

Intraperitoneal surgery

0.74 (0.66—0.83)

 < .001

0.74 (0.66—0.83)

 < .001

Intraoperative hypotension

1.72 (1.46—1.97)

 < .001

1.69 (1.45—1.94)

 < .001

Intraoperative blood transfusion

0.98 (0.86—1.09)

0.684

0.92 (0.81—1.03)

0.173

Intraoperative dexmedetomidine use

0.81 (0.73—0.89)

 < .001

0.81 (0.73—0.89)

 < .001

Intraoperative colloid use

1.21 (1.09—1.33)

 < .001

1.18 (1.06—1.30)

0.001

Hemoglobin drop, (≤ 43 g/L)

reference

-

reference

 < .001

  > 43

-

1.82 (1.42—2.21)

  1. GA General Anesthesia
  2. HGBd Hemoglobin drop, the difference between preoperative mean hemoglobin and perioperative minimal hemoglobin, g/L
  3. CI Confidence Interval
  4. aOR adjusted Odds Ratio