Table 1.

Baseline characteristics of 602 participants in the study.a

VariableValue
Age, years72.59 (5.68)
Weight, kg78.35 (12.93)
Height, cm172.37 (6.32)
Body mass index, kg/m226.34 (3.79)
Dietary calcium, mg/day635.62 (342.24)
Past or present smoker356 (59.14)
Lumbar spine BMD, g/cm21.26 (0.22)
Lumbar spine T-score0.48 (1.87)
Femoral neck BMD, g/cm20.91 (0.15)
Femoral neck T-score−1.08 (1.28)
Serum TT measured by LC-MS/MS
    ng/dL430.17 (206.18)
    nmol/L14.93 (7.15)
Serum free testosterone calculated from TTLC-MS/MS, ng/dLb
    ng/dL5.91 (2.53)
    nmol/L0.20 (0.09)
Serum TT measured by RIA, ng/dL
    ng/dL403.01 (195.53)
    nmol/L13.98 (6.78)
Serum free testosterone calculated from TTRIA, ng/dLb
    ng/dL5.55 (2.45)
    nmol/L0.19 (0.08)
Serum estradiol
    pg/mL20.27 (9.32)
    pmol/L74.41 (34.21)
Serum SHBG
    μg/mL5.35 (2.30)
    nmol/L47.59 (20.46)
Previous fracture112 (18.60)
  • a Data are mean (SD) or n (%).

  • b Free testosterone (pmol/L) = 24.00314 × TT/log10 SHBG − 0.04599 × TT2 [Sartorius et al. (15)].