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Table 1 Demographic and lifestyle factors, and plasma concentrations of hormones and SHBG for the 1036 men

From: Second to fourth digit ratio (2D:4D) and concentrations of circulating sex hormones in adulthood

Characteristic

Category

Values

Age in years, mean (SD)

 

54 (9)

Country of birth, n (%)

Australia/New Zealand/UK/Other

816 (79)

 

Italy

129 (12)

 

Greece

91 (9)

Smoking, n (%)

Never

459 (44)

 

Current

128 (12)

 

Former

449 (43)

Alcohol consumption, n (%)

Abstainers

126 (12)

 

Ex drinkers

49 (5)

 

Low

693 (67)

 

Medium

97 (9)

 

High

71 (7)

BMI (kg/m2), mean (SD)

 

26.9 (3.4)

Right 2D:4D, mean (SD)

Overall

0.946 (0.036)

 

Australia/New Zealand/UK/Other

0.948 (0.035)

 

Italy

0.938 (0.041)

 

Greece

0.941 (0.035)

Left 2D:4D, mean (SD)

Overall

0.954 (0.035)

 

Australia/New Zealand/UK/Other

0.955 (0.035)

 

Italy

0.949 (0.039)

 

Greece

0.955 (0.032)

Δr-l2D:4D, mean (SD)

Overall

-0.008 (0.033)

 

Australia/New Zealand/UK/Other

-0.007 (0.031)

 

Italy

-0.011 (0.041)

 

Greece

-0.014 (0.034)

Hormones and SHBG, geometric mean (interquartile range) 1

 

Total testosterone (nmol/L)

 

15.5 (12.3,19.5)

Free testosterone (pmol/L)

 

244.1 (189.3,306.1)

Total oestradiol (pmol/L)

 

103.0 (87.0,122.0)

Free oestradiol (pmol/L)

 

1.7 (1.4,2.0)

DHEAS (μmol/L)

 

3.5 (2.3,5.2)

Androstenedione (nmol/L)

 

4.1 (3.2,5.4)

Androstenediol glucoronide (ng/mL)

 

14.8 (10.3,20.2)

SHBG (nmol/L)

 

35.2 (27.0,43.8)

Testosterone:oestradiol ratio

 

151.6 (118.5,187.3)

  1. 1At baseline blood collection. Number of missing measures were 2 for testosterone, 2 for free testosterone,and 66 for androstenediol glucoronide.