Table 2

 Specificity and sensitivity of real time quantitative polymerase chain reaction assays

Assay20_Q8N8C319_WBSCR1717_BAZ1B15_TBL214_WBSCR149_ELN6_RFC25_CYLN24_WBSCR163_HIP12_CCL266 Dx assays combined
WBS, Williams-Beuren syndrome samples.
Mean control1.011.060.811.061.040.991.040.980.910.861.070.99
SD of control0.120.090.100.110.120.100.110.100.090.120.120.13
Mean WBS1.071.020.430.510.530.480.510.480.920.861.090.49
SD of WBS0.180.130.110.060.070.050.060.060.120.180.130.08
Number of samples153153152153153152152152153153153153
Number of uncertain samples2217460
Sensitivity0.980.990.990.960.970.961.00
Specificity1.000.981.000.960.980.971.00