Table 2

Quartiles of the ELISA index distribution among controls

AntigenLower quartileMedianUpper quartileCutoff
Dutch strains0.620.901.050.65
Venezuelan strains0.490.831.050.21
French strains0.390.771.090.21
Commercial kit95.5275.5>300a20
  • a Upper quartile is not known because values >300 are censored.