Diabetes Antibody Standardization Program
First evaluation of assays for autoantibodies to IA-2β
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Tables
- Table 1
Results for IA-2β autoantibody assays
Laboratory no. Laboratory-assigned sensitivity (%) Laboratory-assigned specificity (%) AUC 95% CI P value AS 95 (%) Results reported IA-2β clone 109 ND ND 0.77 0.69–0.87 <0.0001 63 local units Milan 115 39 98 0.72 0.62–0.82 <0.0001 53 cpm Milan 116 47 99 0.70 0.60–0.80 <0.0001 53 local units Milan 118 ND ND 0.68 0.57–0.79 <0.0001 53 cpm Milan 120 53 96 0.73 0.63–0.82 <0.0001 55 local units Milan 121 47 99 0.69 0.58–0.79 <0.0001 49 local units Milan 126 51 98 0.67 0.55–0.78 0.001 49 local units Seattle 132 43 99 0.74 0.65–0.83 <0.0001 47 local units Milan 133 47 99 0.69 0.59–0.80 <0.0001 53 local units Denver 150 53 94 0.75 0.66–0.84 <0.0001 53 cpm Milan 153 50 98 0.74 0.65–0.84 <0.0001 52 local units Milan 213 47 92 0.71 0.61–0.81 <0.0001 47 local units Milan 504 37 92 0.65 0.55–0.75 0.004 20 local units Milan ND, not designated.