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Table 2 Description of Relationship Between Variable with Missing Data (Genotype or Exposure) and Set of Auxiliary Variables.

From: The use of complete-case and multiple imputation-based analyses in molecular epidemiology studies that assess interaction effects

Variable with Missing Data:

Genotype

(Scenarios J and K)

Exposure

(Scenario L-N)

Auxiliary Variables

OR

P-value

OR

P-value

Level of average alcohol exposure

0.90

P = 0.06

NA

NA

Race

 

P < 0.001

 

P < 0.001

Reference (Caucasian)

1.00

 

1.00

 

African American

4.14

 

0.43

 

Other

3.60

 

0.24

 

Breastfed for at least 6 months

 

P < 0.001

  

Reference (No)

1.00

   

Yes

0.68

   

Education

   

P < 0.001

Reference (less than high school)

  

1.00

 

Completed high school and some college

  

1.52

 

College graduate or more

  

1.68

 

Use of oral contraceptives

   

P = 0.005

Reference (No)

  

1.00

 

Yes

  

1.32

 

Use of hormone therapy

   

P = 0.018

Reference (No)

  

1.00

 

Yes

  

1.29

 

Smoking Status

   

P < 0.001

Reference (Never smoked)

  

1.00

 

Past smoker

  

1.63

 

Current smoker

  

1.67

 

Genotype

NA

NA

 

P = 0.001

Reference (No mutation)

  

1.00

 

Has mutation

  

0.73

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