Table 3.
Factors related to BMD in women with a long postmenopausal period (6–10 yr)
| Normal (n=78) | Low bone mass (n=224) | Osteoporosis (n=135) | P* | |
|---|---|---|---|---|
| Age (yr) | 58.2±3.3 | 58.1±3.3 | 58.3±3.2 | 0.881 |
| Menopausal age (yr) | 50.5±3.0 | 50.3±3.1 | 50.2±3.0 | 0.795 |
| Height (cm) | 157.3±5.4 | 156.2±5.1 | 155.6±4.8 | 0.054 |
| Weight (kg) | 62.2±7.7a | 58.5±7.0b | 56.0±6.8c | <0.001 |
| BMI (kg/m2) | 25.1±2.8a | 24.0±2.8b | 23.2±2.7c | <0.001 |
| WC (cm) | 83.8±7.5a | 81.3±7.9b | 79.0±7.7c | <0.001 |
| Skeletal muscle mass (kg) | 23.6±5.8a | 21.9±4.6b | 20.4±2.5c | <0.001 |
| Body fat mass (kg) | 21.2±4.7a | 20.0±4.9a | 18.3±4.7b | <0.001 |
| Exercise amount (hour/week) | 1.7±2.2 | 1.8±2.7 | 1.3±1.7 | 0.101 |
| Alcohol consumption (g/week) | 6.2±18.4 | 6.0±23.3 | 5.7±21.7 | 0.982 |
Values are expressed as mean±standard deviation (SD).
*
Obtained using the one-way ANOVA test, the same letters indicate non-significant differences between groups based on Tukey’s multiple comparison test.
BMD, bone mineral density; Long postmenopausal period, 6–10 years after menopause; Normal, T-score ≥ −1.0; Low bone mass, −2.5 < T-score < −1.0; Osteoporosis, T-score ≤ −2.5; BMI, body mass index; WC, waist circumference.