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Table 3 Spearman’s rank correlation matrices for cases and controls – BMI, stressful events, alcohol intake, activity level and smoking prevalence across all each time periods

From: Connecting the dots between breast cancer, obesity and alcohol consumption in middle-aged women: ecological and case control studies

 

BMI

Stress

Alcohol

Activity

Smoking

18 to 30 years

Cases

 BMI

1.000

    

 No. of stressful life events

− 0.113

1.000

   

 Standard drinks per month

0.019

0.006

1.000

  

 Light activity prevalence

− 0.078

0.214

− 0.109

1.000

 

 Smoking prevalence

0.000

0.003

0.204

0.137

1.000

Controls

 BMI

1.000

    

 No. of stressful life events

0.052

1.000

   

 Standard drinks per month

0.067

0.065

1.000

  

 Light activity prevalence

0.090

−0.022

0.159

1.000

 

 Smoking prevalence

−0.040

0.174*

0.143

− 0.144

1.000

31 to 40 years

Cases

 BMI

1.000

    

 No. of stressful life events

0.055

1.000

   

 Standard drinks per month

0.003

−0.053

1.000

  

 Light activity prevalence

0.120

−0.031

−0.045

1.000

 

 Smoking prevalence

0.030

−0.022

0.367*

0.153

1.000

Controls

 BMI

1.000

    

 No. of stressful life events

0.123

1.000

   

 Standard drinks per month

−0.037

− 0.035

1.000

  

 Light activity prevalence

0.132

−0.031

−0.020

1.000

 

 Smoking prevalence

0.056

0.142*

0.215*

0.034

1.000

41 to 50 years

Cases

 BMI

1.000

    

 No. of stressful life events

0.283*

1.000

   

 Standard drinks per month

− 0.254

− 0.001

1.000

  

 Light activity prevalence

0.239

0.133

−0.124

1.000

 

 Smoking prevalence

0.101

−0.214

−0.075

0.135

1.000

Controls

 BMI

1.000

    

 No. of stressful life events

0.210*

1.000

   

 Standard drinks per month

−0.049

0.077

1.000

  

 Light activity prevalence

0.179*

0.143*

0.009

1.000

 

 Smoking prevalence

0.070

0.105

0.055

0.012

1.000

51 to 60 years

Cases

 BMI

1.000

    

 No. of stressful life events

0.022

1.000

   

 Standard drinks per month

−0.182

0.137

1.000

  

 Light activity prevalence

0.245

0.239

0.068

1.000

 

 Smoking prevalence

−0.132

− 0.143

− 0.182

− 0.121

1.000

Controls

 BMI

1.000

    

 No. of stressful life events

0.034

1.000

   

 Standard drinks per month

−0.107

−0.016

1.000

  

 Light activity prevalence

0.295*

0.009

− 0.063

1.000

 

 Smoking prevalence

0.152*

−0.104

− 0.001

0.099

1.000

61 to 70 years

Cases

 BMI

1.000

    

 No. of stressful life events

0.034

1.000

   

 Standard drinks per month

−0.377

0.126

1.00

  

 Light activity prevalence

0.024

−0.052

0.447

1.000

 

 Smoking prevalence**

–

–

–

–

–

Controls

 BMI

1.000

    

 No. of stressful life events

−0.010

1.000

   

 Standard drinks per month

−0.150

−0.021

1.000

  

 Light activity prevalence

0.322*

0.097

− 0.211

1.000

 

 Smoking prevalence**

–

–

–

–

–

  1. *p < 0.05
  2. **smoking omitted due to low cell counts