Table 4.
Comparison of Lactate and Base Deficit levels for blood transfusion need in 24 hours
| Lactate >2 mmol/l n=207 | Lactate ≤2 mmol/l n=152 | p | OR (95% CI) | Sensitivity (%) | Specificity (%) | PPV (%) | LR + | NPV (%) | LR - | |
|---|---|---|---|---|---|---|---|---|---|---|
| ‡Need Transfusion in 24h, n=49 (%) | 43 (87.87) | 6 (13.3) | <0.001 | 6.38 (2.7–15.04) | 87.8 | 47.1 | 20.8 | 1.65 | 96.1 | 0.26 |
|
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| BD < -6 mmol/l n=44 | BD ≥ -6 mmol/l n=315 | p | OR (95% CI) | Sensitivity (%) | Specificity (%) | PPV (%) | LR + | NPV (%) | LR - | |
|
| ||||||||||
| ‡Need Transfusion in 24h, n=49 (%) | 26 (53.1) | 23 (46.9) | <0.001 | 18.33 (8.84–38.06) | 53.1 | 94.2 | 59.1 | 9.1 | 92.7 | 0.49 |
|
| ||||||||||
| SI ≥0.9 n=68 | SI <0.9 n=291 | p | OR (%95 CI) | Sensitivity (%) | Specificity (%) | PPV (%) | LR + | NPV (%) | LR - | |
|
| ||||||||||
| ‡Need Transfusion in 24h, n=49 (%) | 30 (61.2) | 19 (38.2) | <0.001 | 11.302 (5.82–21.91) | 61.2 | 85.5 | 40.8 | 4.35 | 93.6 | 0.43 |
|
| ||||||||||
| CS >0.09 n=100 | CS ≤0.09 n=259 | p | OR (%95 CI) | Sensitivity (%) | Specificity (%) | PPV (%) | LR + | NPV (%) | LR - | |
|
| ||||||||||
| ‡Need Transfusion in 24h, n=49 (%) | 41 (83.6) | 8 (16.4) | <0.001 | 21.803 (9.85–48.11) | 83.7 | 81 | 41 | 4.39 | 96.9 | 0.202 |
*Logistic procedure multiple linear combination test was used,
‡
Chi-squre test was used. (BD: Base deficits; SI: Shock index; CS: Combining score). OR: Odds Ratio; PPV: Positive predictive value; LR: Likelihood ratio; NPV: Negative predictive value.