Table 5.

Measures of Performance for Top Four Performing Case Definitions^*

Definition Number	Description	Area Under the ROC Curve (95% Confidence Interval)	Sensitivity (%)	Specificity (%)	PPV (%)
1	Had 2 SCD Claims in any position	0.88 (0.86, 0.90)	94.9	81.0	90.6
2	Had 3 SCD Claims in any position	0.91 (0.89, 0.93)	89.7	92.4	95.8
6	Had 2 Other Diagnostic Procedures in any position	0.90 (0.88, 0.92)	92.6	87.9	93.7
37	Had at least 1 Inpatient Hospitalization with a SCD Diagnosis, OR	0.90 (0.88, 0.92)	90.2	90.4	94.5
	Had 2 visits in either an Outpatient or ED setting with a SCD Diagnosis

^*Children continuously enrolled in Michigan Medicaid in 2011 with either confirmed SCD or not SCD as identified by Newborn Screening records, n = 924