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Table 1 kappa factor and sensitivity and specificity for absolute CD4+ counts determined by EasyCD4 assay.

From: Comparison of capillary based microflurometric assay for CD4+ T cell count estimation with dual platform Flow cytometry

  N CD4+ T cell count (cells/mm3) Kappa value Sensitivity Specificity
   Mean Median    
   FC* EasyCD4** FC* EasyCD4**    
Total 79 306 290 280 284 --- --- ----
CD4 < 500 70 252 227 249 239 0.771 100% 95%
CD4 < 350 52 196 192 210 205 0.735 100% 82%
CD4 < 200 24 108 104 118 112 0.741 97% 100%
  1. *: FC = Flowcytometer
  2. **: Easy CD4: Guava EasyCD4 System