Table 3

Analysis of sensitivity, specificity, PPV and NPV for ICD-10-CM coding of physical child abuse in 2016–2017

Overall (N=312)Outpatient (n=230)Inpatient (n=82)
Sensitivity, % (95% CI)31.8 (25.2 to 38.9)22.2 (15.5 to 30.2)55.6 (41.4 to 69.1)
Specificity, % (95% CI)84.6 (76.9 to 90.4)86.3 (77.7 to 92.5)78.6 (59.0 to 91.7)
Prevalence, % (95% CI)61.0 (55.0 to 66.0)59.0 (52.0 to 65.1)66.0 (55.0 to 76.0)
PPV, % (95% CI)76.0 (65.0 to 84.9)69.8 (53.9 to 82.8)83.3 (67.2 to 93.6)
NPV, % (95% CI)44.6 (38.1 to 51.9)43.9 (36.6 to 51.3)47.8 (32.9 to 63.1)
Diagnostic OR2.55 (1.44 to 4.51)1.80 (0.89 to 3.64)4.58 (1.64 to 12.70)
  • ICD-10-CM, International Classification of Disease, 10th Revision, Clinical Modification.