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 OR | 2.55 (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.