Table 3

The proportion at which a given variable is selected in the training set and is significant in the validation set after randomly splitting the data 1000 times

Variables

Forward

selection

Backward

selection

Stepwise

selection

sv

sv

sv


Age

0.979

0.956

0.954

Baseline WBC

0.873

0.803

0.789

T-cell immunophenotype

0.394

0.464

0.464

Mediastinal mass

0.248

0.270

0.273

Splenomegay

0.192

0.118

0.136

Hepatomegaly

0.016

0.000

0.000

Sex

0.000

0.000

0.000


Beyene et al. BMC Medical Research Methodology 2009 9:64   doi:10.1186/1471-2288-9-64

Open Data