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Table 3 The level of agreement between the t test, SAM and PLS-DA for selecting differentially expressed genes from the same data set.

From: Gene expression in acute Stanford type A dissection: a comparative microarray study

Type of array   N.o. of differently expressed genes between dissected and control aorta Agreement between all three methods
   t -test P < 0.01 SAM PLS-DA  
Human Broad I cDNA array   43 37 35 29
  Agreement with t-test - 29 (67%) 35 (81%) -
Cardiovascular cDNA array   31 36 34 22
  Agreement with t-test - 27 (87%) 26 (84%) -
Affymetrix HG-133A   242 195 79 79
  Agreement with t-test - 195 (81%) 79 (33%) -