Table 2.
Actual and Expected Correct Classification Rates for Listeria monocytogenes Strains Based on 19 Loci Typed Using a Hybridization-Based Bead-Array
| Isolate panel | No. strains | Probe accuracy (%)a | % Correctly classified (expected %)b | % Correct with replicates (expected %)c |
|---|---|---|---|---|
| LMB-WSU | 55 | 98.6 | 74.5 (75.8) | nd (57.4) |
| WHO | 74 | 97.4 | 60.8 (59.8) | 33.8 (35.8) |
a
Average proportion of isolates correctly classified based on probe hybridization results when compared to sequence data (Table 1).
b
Correct classification is the percentage of isolates for which all 19 loci were correctly typed by bead-array. The expected correct classification rate is the product of the proportion of correct classification for each probe multiplied together.
c
Percentage of isolates correctly classified for replicate experiments. The expected value is the proportion of correct classifications from the previous column raised to the power of two and expressed as a percentage.