Table 1.
Characteristics of the subjects
| Parameters | Males | Females | p value |
|---|---|---|---|
| Sample size | 270 | 391 | |
| Age (years) | 39.4 ± 8.6 | 40.2 ± 9.2 | 0.249 |
| Height (cm) | 172.4 ± 5.9 | 160.4 ± 7.4 | ＜0.001 |
| Weight (kg) | 78.1 ± 11.8 | 62.1 ± 10.2 | <0.001 |
| BMI (kg/m2) | 26.2 ± 3.6 | 24.5 ± 8.5 | <0.001 |
| Mandibular middle vBMD (mg/cm3) | 234.9 (173.3, 323.2) | 238.6 (159.5, 340.7) | 0.531 |
| Mandibular body vBMD (mg/cm3) | 143.4 (89.8, 241.0) | 176.9 (113.8, 255.6) | 0.003 |
| Mandibular angle vBMD (mg/cm3) | 121.6 (66.5, 219.2) | 148.3 (89.4, 226.4) | 0.014 |
| C2-7 vBMD (mg/cm3) | 266.3 (228.3, 297.7) | 302.9 (257.1, 346.3) | <0.001 |
| L2-4 vBMD (mg/cm3) | 146.5 (127.0, 167.1) | 163.3 (138.6, 184.8) | <0.001 |
Results for age, height, weight and BMI are the mean and standard deviation. Results for mandibular and vertebral vBMD are the median and interquartile range.BMD, bone mineral density; BMI: body mass index.