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Table 2 Cross tabulation showing statistical values for S100B and significant intracranial complications

From: Clinical validation of S100B use in management of mild head injury

 

SICC + Total = 24

SICC - Total = 488

 

S100B ≥ 0.10μg/L

24

350

PPV: 6,4%

Total = 374

  

(95% CI 4.2-10%)

S100B < 0.10μg/L

0

138

NPV: 100%

Total = 138

  

(95% CI 97-100%)

 

Sensitivity: 100%

Specificity: 28%

 

(95% CI 83-100%)

(95% CI 24-33%)

  1. SICC = Significant intracranial complications, NPV= Negative predictive value, PPV= Positive predictive value.