Table 1.

Demographic and other sample characteristics

	Mean ± S.D.
Age (years)	70.17 ± 3.69
Age at leaving full-time education	17.25 ± 3.24
Body Mass Index (kg/m2)	26.24 ± 3.07
Total T levels (nmol/l)*	15.59 ± 5.58
IGF-I levels (nmol/l)**	15.26 ± 4.95

*Total T reference range for young males: 10 – 30 nmol/l **IGF-I reference range for young males: 12.8 – 62.2 nmol/l