Table 4: Performance of the incorporation of the RAI and the NLR in subgroup analysis.
|
Total (n = 173) |
Non-surgical patient (n = 103) |
||||
Subsequent AKI |
Mortality |
AKI-requiring RRT |
Subsequent AKI |
Mortality |
AKI-requiring RRT |
|
RAI ≥ 8 & NLR ≥ 5.5 % (95% CI) |
RAI ≥ 8 & NLR ≥ 5.5 % (95% CI) |
RAI ≥ 8 & NLR ≥ 5.5 % (95% CI) |
RAI ≥ 8 & NLR ≥ 5.5 % (95% CI) |
RAI ≥ 8 & NLR ≥ 5.5 % (95% CI) |
RAI ≥ 8 & NLR ≥ 5.5 % (95% CI) |
|
AUC |
0.6 (0.49-0.71) |
0.62 (0.47-0.77) |
0.54 (0.45-0.63) |
0.57 (0.45-0.7) |
0.58 (0.43-0.73) |
0.88 (0.84-0.92) |
Sensitivity |
36.4 (17.2-59.3) |
41.7 (15.2-72.3) |
25.9 (11.1-46.3) |
38.9 (17.3-64.3) |
41.7 (15.2-72.3) |
100 (29.2-100) |
Specificity |
83.4 (76.5-89) |
82.6 (75.9-88.1) |
82.2 (75-88) |
75.3 (64.7-84) |
74.7 (64.5-83.3) |
75.8 (66.1-83.8) |
PPV |
24.2 (11.1-42.3) |
15.2 (5.1-31.9) |
21.2 (9-38.9) |
25 (10.7-44.9) |
17.9 (6.1-36.9) |
11.1 (2.4-29.2) |
NPV |
90 (83.8-94.4) |
95 (90-98) |
85.7 (78.8-91.1) |
85.3 (75.3-92.4) |
90.7 (81.7-96.2) |
100 (95.2-100) |
RAI: Renal Angina Index; NLR: Neutrophil-to-Lymphocyte Ratio; AKI: Acute Kidney Injury; RRT: Renal Replacement Therapy; CI: Confidence Interval; AUC: Area under the Curve; PPV: Positive Predictive Value; NPV: Negative Predictive Value