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Table 1 Accuracy of different methods for analyzing single instances of multiplexed microbiological arrays separately (n = 4).

From: Robust methods for accurate diagnosis using pan-microbiological oligonucleotide microarrays

  Recall/sensitivity Specificity Positive predicting value (precision)* Negative predicting value
Probe count 100% (0.0%) 89.4% (0.5%) 1.5% (0.2%) 100% (0.0%)
Probe count w/threshold 100% (0.0%) 90.3% (0.4%) 1.7% (0.3%) 100% (0.0%)
Probe ratio 100% (0.0%) 97.7% (0.1%) 4.6% (0.4%) 100% (0.0%)
Probe ratio w/threshold 100% (0.0%) 98.6% (0.1%) 5.9% (1.5%) 100% (0.0%)
Log transform ranking 100% (0.0%) 99.8% (0.2%) 39.1% (32.2%) 100% (0.0%)
Hypergeometric (proposed method) 100% (0.0%) 100% (0.0%) 100% (0.0%) 100% (0.0%)
  1. Average value and standard deviation for all samples are shown. Best values are bolded. * Examples of species' predictions by all methods are provided in Supplementary T 1 http://phenos.bsd.uchicago.edu/amia2008/ and clarify the positive predictive value scores below.