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Table 1 Influence of the size of data sets on the sensitivity and specificity of different data sets

From: Evaluation of a microarray-hybridization based method applicable for discovery of single nucleotide polymorphisms (SNPs) in the Pseudomonas aeruginosa genome

    sensitivity   specificity
treatment group sizea control group sizea total SNP mismatch absent total
1 1 0.585 0.481 0.740 0.848 0.989
1 1 0.600 0.500 0.747 0.860 0.967
1 1 0.588 0.479 0.751 0.866 0.998
1 1 0.603 0.497 0.759 0.874 0.989
2 2 0.593 0.488 0.750 0.863 0.997
4 4 0.590 0.483 0.752 0.866 0.998
6 6 0.572 0.459 0.742 0.863 0.999
  1. a The four analyses of 2 × 1 array are the four possible combinations of arrays that were used in the 2 × 2 analysis. The 2 × 4 and 2 × 6 analyses contain the above stated microarrays plus additional ones.