Table 2.
Factors related to BMD in women with a short postmenopausal period (0–5 yr)
| Normal (n=219) | Low bone mass (n=365) | Osteoporosis (n=117) | P* | |
|---|---|---|---|---|
| Age (yr) | 53.5±2.6 | 53.7±2.9 | 54.1±3.2 | 0.185 |
| Menopause age (yr) | 51.4±2.5 | 51.0±2.6 | 51.2±2.8 | 0.351 |
| Height (cm) | 158.2±4.8a | 157.5±4.6a,b | 156.5±4.0b | 0.008 |
| Weight (kg) | 60.9±7.4a | 58.0±6.9b | 55.0±7.0c | <0.001 |
| BMI (kg/m2) | 24.3±2.8a | 23.4±2.6b | 22.5±2.7c | <0.001 |
| WC (cm) | 81.6±7.7a | 78.8±7.8b | 76.7±8.3c | <0.001 |
| Skeletal muscle mass (kg) | 23.1±5.2a | 21.6±4.0b | 21.3±4.7b | <0.001 |
| Body fat mass (kg) | 20.5±5.0a | 19.0±4.9b | 17.1±4.8c | <0.001 |
| Exercise amount (hour/week) | 1.6±2.3 | 1.9±2.9 | 1.7±2.2 | 0.311 |
| Alcohol consumption (g/week) | 9.3±21.2 | 9.3±28.5 | 3.8±9.5 | 0.079 |
Values are expressed as mean±standard deviation (SD).
*
Obtained by one-way ANOVA test, the same letters indicate non-significant differences between groups based on Tukey’s multiple comparison test.
BMD, bone mineral density; Short postmenopausal period, 0–5 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.