Table 3.

Diagnostic value of serum 25(OH)D3, CRP, and TNF-α in osteoporosis

Indicators	AUC	95 CI%	Specificity	Sensitivity	Cut-off
25(OH)D3	0.931	0.885-0.977	74.03%	93.33%	18.46
CRP	0.878	0.818-0.937	75.32%	88.89%	5.77
TNF-α	0.846	0.776-0.915	84.03%	84.44%	6.04
Combination of the three	0.991	0.980-0.999	94.81%	97.78%	0.404

Note: 25(OH)D3: 25-hydroxyvitamin D3, CRP: C-reactive protein, TNF-α: tumor necrosis factor-α.