Table 4 Multivariate logistic regression analysis of AKI risk factors.

From: Preoperative neutrophil percentage-to-albumin ratio as a postoperative AKI predictor in non-cardiac surgery: a retrospective cohort secondary analysis

Exposure

Model 1

P-value

Model 2

P-value

Model 3

P-value

NPAR

1.094 (1.073, 1.116) < 0.001

1.093 (1.072, 1.116) < 0.001

1.059 (1.034, 1.084) < 0.001

Low NPAR tertile

1

1

1

Middle NPAR tertile

3.522 (1.840, 6.742) < 0.001

3.538 (1.834, 6.827) < 0.001

2.633 (1.335, 5.192) 0.00521

High NPAR tertile

8.933 (4.873, 16.377) < 0.001

8.819 (4.759, 16.343) < 0.001

4.403 (2.260, 8.579) < 0.001

P for trend

< 0.00001

< 0.00001

< 0.00001

  1. Model 1: Not adjusted for other covariates.
  2. Model 2: Adjusted for demographic and clinical characteristics including sex, weight, height, preoperative hypertension, preoperative coronary artery disease, preoperative diabetes mellitus, preoperative peripheral vascular disease, preoperative heart failure and age.
  3. Model 3: Adjusted for Model 2 plus emergency indicator, laparoscopy, volume of blood loss, anesthesia duration, volume of fluid intake, volume of fluid output, estimated 10-year survival rate, hemoglobin, uric acid and creatinine.
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