TABLE 5.

Male-specific coliphage fluorescence-based prediction compared to STEP-1 plaquea

Sample category in STEP-1 plaqueNo. of samples in STEP-2 fluorescence- based assay
PositiveNegativeTotal
Positive12221143
Negative82634
Total13047177
  • a Sensitivity, 85.3%; specificity, 76.5%; overall agreement, 83.6%; Cohen kappa value, 0.539; false-negative error rate, 14.7%; false-positive error rate, 23.5%; miscalculation rate, 16.4%.