Table 2. Anthropometric, serum serotonin and bone parameters in men.
| All Men | Men aged <60-yr | Men aged ≥60-yr | |
| N | 168 | 112 | 56 |
| Age (yr) | 57.7±11.7 | 50.0±4.0 | 72.9±5.2c |
| Height(cm) | 175.8±6.9 | 177.7±6.2 | 171.2±5.3c |
| Weight(kg) | 82.1±10.6 | 83.6±10.0 | 79.1±10.6a |
| BMI(kg/m2) | 26.6±3.2 | 26.5±3.0 | 26.8±3.4 |
| Lean Mass(kg) | 56.5±6.0 | 58.1±5.8 | 53.3±5.1c |
| Fat Mass(kg) | 22.5±7.2 | 22.1±6.6 | 23.2±8.2 |
| Serotonin (ng/ml) | 173.9±59.3 | 186.6±59.2 | 146.9±59.3c |
| Osteocalcin (ng/ml) | 6.75(5.57, 8.71) | 7.18(5.91, 8.72) | 6.14(5.28, 8.46) |
| DXA-aBMD(g/cm2) | |||
| Total Body | 1.27±0.10 | 1.28±0.10 | 1.24±0.11b |
| Total Femur | 1.09±0.13 | 1.04±0.14 | 1.07±0.14a |
| Femoral Neck | 0.98±0.13 | 1.01±0.13 | 0.93±0.13b |
| Total Spine | 1.12±0.14 | 1.12±0.14 | 1.13±0.15 |
| Lumbar Spine | 1.24±0.20 | 1.22±0.20 | 1.27±0.21 |
| pQCT-Tibial shaft | |||
| BMC (g/mm) | 465±59 | 473±59 | 447±55b |
| BMD(mg/cm3) | 748±70 | 752±65 | 739±78a |
| CSA(mm2) | 626±68 | 629±68 | 620±69 |
| cBMC (g/mm) | 410±57 | 418±55 | 392±60b |
| cBMD(mg/cm3) | 1129±27 | 1131±25 | 1123±29a |
| cCSA(mm2) | 362±47 | 369±45 | 348±48b |
| pQCT-Distal Radius | |||
| BMC (g/mm) | 161±25 | 163±23 | 157±29 |
| BMD(mg/cm3) | 375±57 | 389±48 | 344±64c |
| CSA(mm2) | 434±65 | 422±58 | 460±70c |
| tBMC (g/mm) | 42.2±8.7 | 41.6±9.1 | 42.2±8.7 |
| tBMD(mg/cm3) | 218±43 | 225±41 | 203±44b |
| tCSA(mm2) | 195±29 | 190±26 | 207±32c |
Data are represented as mean±SD or median and quartile range(P25, P75). BMI: Bone mass index; BMC: bone mineral content; aBMD: areal bone mineral density; vBMD: volumetric bone mineral density; CSA: cross-sectional area. cBMC: cortical BMC; cBMD: cortical BMD; cCSA: cortical CSA; tBMC: trabecular BMC; tBMD: trabecular BMD; tCSA: trabecular CSA. Bone traits of total body, femur and spine were attained by DXA while those of tibia and radius were from pQCT.
a
: P<0.05; b: P<0.01; c: P<0.001 Men aged 18 to 60-yr versus Men aged ≥60-yr.