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Table 5 WHAS data set variables retained in the final models for purposeful selection method under two different settings.

From: Purposeful selection of variables in logistic regression

Purposeful Selection

(20%, 0.1)

p-value

Purposeful Selection

(15%, 0.15)

p-value

Forward, Backward, Stepwise

p-value

AGE

<0.0001

AGE

<0.0001

AGE

<0.0001

SHO

0.0018

SHO

0.0029

SHO

0.0039

HR

0.0025

HR

0.0019

HR

0.0011

MITYPE

0.091

MITYPE

0.0586

MITYPE

0.0149

MIORD

0.1087

AV3

0.0760

AV3

0.0672

BMI

0.2035

MIORD

0.1285

  
  

BMI

0.2107

  
  1. SAS PROC LOGISTIC forward, backward, and stepwise selection methods.
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