TABLE 4.

Diagnostic Test Characteristics of Having No History of Trauma for Identifying Cases of Definite Abuse

Patient GroupSensitivity (95% CI)Specificity (95% CI)PPV (95% CI)Negative Predictive Value (95% CI)
Normal neurologic status (n = 103)0.65 (0.38–0.86)0.99 (0.94–1.0)0.92 (0.61–1.0)0.93 (0.86–0.98)
Initial abnormal neurologic status (n = 60)0.72 (0.53–0.86)0.93 (0.76–0.99)0.92 (0.79–0.99)0.74 (0.57–0.88)
Persistent abnormal neurologic status (n = 34)0.73 (0.52–0.88)1.0 (0.64–1.0)1 (0.82–1.0)0.53 (0.27–0.79)
All cases (n = 163)0.69 (0.55–0.82)0.97 (0.83–1.0)0.92 (0.78–0.98)0.88 (0.82–0.99)
  • CI indicates confidence interval