Table 3 Lactate level sensitivity and specificity cutoffs with corresponding positive predictive values and negative predictive values
From: Serum lactate as a predictor of early outcomes among trauma patients in Uganda
Cutoffs (lactate) | KTS II | Sensitivity | Specificity | PPV | NPV | |
|---|---|---|---|---|---|---|
Severe | Non-severe | |||||
0 | 1 | |||||
>9 | 18 | 1 | 94.7 | 80.4 | ||
16.7 | 99.7 | |||||
8 to 8.99 | 1 | 3 | ||||
17.6 | 98.9 | 82.6 | 81.4 | |||
7 to 7.99 | 6 | 3 | ||||
23.1 | 98.2 | |||||
6 to 6.99 | 7 | 6 | ||||
29.6 | 96.7 | 71.1 | 83.4 | |||
5 to 5.99 | 14 | 28 | ||||
42.5 | 89.6 | |||||
4 to 4.99 | 18 | 29 | ||||
59.3 | 82.2 | 47.8 | 83.4 | |||
3 to 3.99 | 10 | 58 | ||||
68.5 | 67.5 | |||||
2 to 2.99 | 21 | 117 | ||||
88 | 37.8 | 27.9 | 92.0 | |||
0 to 1.99 | 13 | 149 | ||||
1 | 0 | |||||
108 | 394 | |||||