Table 2.
Evaluation of the bone metabolic markers of all participants in this study
| Items | Obesity group (n = 32) | Mild-to-moderate OSAS group (n = 32) | Severe OSAS group (n = 55) |
|---|---|---|---|
| BMD (g/cm2) | 1.02 ± 0.07 | 1.04 ± 0.19 | 0.99 ± 0.09 |
| t-P1NP (ng/ml) | 31.98 ± 9.85 | 34.83 ± 10.66 | 48.42 ± 23.78*† |
| N-MID (ng/ml) | 16.87 ± 4.43 | 17.73 ± 5.93 | 18.26 ± 7.11 |
| β-CTX (ng/ml) | 0.41 ± 0.13 | 0.50 ± 0.17 | 0.53 ± 0.24* |
| VD (ng/ml) | 27.23 ± 7.59 | 17.62 ± 5.88* | 10.83 ± 6.80*† |
| PTH (pg/ml) | 28.29 ± 13.89 | 37.02 ± 6.94 | 57.47 ± 24.60*† |
The data are shown as mean ± SD. *P<0.05, compared with obesity group; †P<0.05, compared with mild-to-moderate OSAS group. BMD: Bone mineral density; t-P1NP: Total procollagen type 1 N-terminal propeptide; N-MID: N-terminal midfragment of osteocalcin; β-CTX: β-C-terminal telopeptide of type 1 collagen; VD: Vitamin D; PTH: Parathyroid hormone; OSAS: Obstructive sleep apnea syndrome; SD: Standard deviation.