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Table 2 Variables selected from each of the methods for RA status andchromosome 18a

From: Comparison of variable and model selection methods for genetic association studies using the GAW15 simulated data

  Replication SNPs/bp
Methods base pair SNP265/65345780 SNP266/65694950 SNP268/66045170b SNP269/66048930 SNP273/6721130
Single marker testa Rep50 - X X X X
  Rep51 - - X X -
  Rep52 - - X X -
Random forest Rep50 - - - X -
  Rep51 - - - X -
  Rep52 - X X X -
Classification treec Rep50 - X X X -
  Rep51 - - X X -
  Rep52 - - X X -
Stepwise regression Rep50 - - X X -
  Rep51 - - X X -
  Rep52 - - X X -
BMA Rep50 X - X X -
  Rep51 - - - X -
  Rep52 - - X X -
  1. aWe analyzed 1500 cases, 2000 controls, and 303 SNPs.
  2. bItalics indicates SNPs simulated with a genetic signal.
  3. cClassification tree method implemented using rpart.