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Table 1 Selected characteristics of cases and controls in the Swedish and the Finnish samples

From: Genetic variation of ESR1 and its co-activator PPARGC1B is synergistic in augmenting the risk of estrogen receptor-positive breast cancer

 

Swedish sample

Finnish sample

Characteristic

Number

Mean

Pvaluea

Number

Mean

Pvaluea

Entire study

      

   Age (years)

1,257/1,464

63.11/63.12

0.96

2,214/1,265

56.07/40.88

< 1.00 × 10-4

   Age at first birth

1,072/1,321

25.50/24.76

2.00 × 10-4

1,185/-

26.43/-

/

   Age at menopause

1,247/1,460

50.6/49.97

1.00 × 10-4

1,341/-

50.34/-

/

   BMI (recent)

1,250/1,443

25.71/25.67

0.81

1,525/-

25.03/-

 
 

Number

Percentage

 

Number

Percentage

 

Case only

 

   All cases

1,257

/

 

2,215

/

 

   ER-positive

684

81.92

 

1,709

80.92

 

   ER-negative

151

18.08

 

403

19.08

 

   Controls

1,464

/

 

1265

/

 
  1. Data presented as cases/controls. BMI, body mass index; ER, estrogen receptor. aTwo-sided t test was used for P value estimation.
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Breast Cancer Research

ISSN: 1465-542X

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