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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