Table 2.
Demographics of the studied urban and community-based populations.
| Men | Women | |||||
|---|---|---|---|---|---|---|
| Urban | Community | p-Value | Urban | Community | p-Value | |
| n | 51 | 117 | 50 | 232 | ||
| Age (y) | 71.04 (9.68) | 74.56 (7.10) | 0.022 | 76.90 (11.00) | 72.76 (7.89) | 0.014 |
| Weight (kg) | 68.01 (11.79) | 62.37 (10.57) | 0.002 | 55.88 (8.81) | 54.76 (9.11) | 0.428 |
| Height (m) | 1.65 (0.07) | 1.62 (0.06) | 0.003 | 1.52 (0.06) | 1.52 (0.06) | 0.740 |
| BMI (kg/m2) | 24.87 (3.90) | 23.87 (3.82) | 0.122 | 24.18 (3.45) | 23.76 (3.60) | 0.450 |
| TBM (kg) | 2.42 (0.41) | 2.32 (0.37) | 0.112 | 1.59 (0.24) | 1.67 (0.27) | 0.056 |
| TFM (kg) | 19.92 (6.03) | 17.88 (6.43) | 0.057 | 20.17 (5.83) | 20.16 (5.90) | 0.990 |
| TLM (kg) | 45.54 (6.94) | 41.74 (5.39) | <0.001 | 34.33 (5.03) | 32.42 (3.90) | 0.014 |
| ASM (kg) | 19.79 (4.07) | 18.14 (2.90) | 0.003 | 14.23 (2.69) | 13.64 (2.08) | 0.148 |
| hSMI (kg/m2) | 7.25 (1.29) | 6.93 (0.97) | 0.079 | 6.13 (0.99) | 5.92 (0.79) | 0.100 |
| wSMI (%) | 29.13 (3.22) | 29.25 (2.95) | 0.812 | 25.53 (3.30) | 25.06 (2.25) | 0.343 |
| HS (kg) | 25.10 (11.40) | 24.22 (7.89) | 0.617 | 14.63 (7.50) | 17.87 (4.90) | 0.005 |
Except for n, values are given as mean (standard deviation). n: sample size; TBM: total bone mass; TFM: total fat mass; TLM: total lean mass; ASM: appendicular skeletal muscle (sum of the lean masses of the four extremities); hSMI: height-adjusted skeletal muscle index; wSMI: weight-adjusted skeletal muscle index; HS: handgrip strength.