3.

不同年龄组人群中不同OSTA切点值的筛查效果比较

Comparison of screening accuracy for different OSTA cut-off point in different age groups

Items	AUC	SE	95%CI	Z	P1	NRI	P2
OSTA, osteoporosis self-assessment tool for Asians; AUC, area under curve; NRI, net reclassification improvement; Ref., reference; P1, for the AUC comparison and set OSTA ≤-1 as reference; P2, for the NRI comparison and set OSTA ≤-1 as reference.
All age group
OSTA ≤-1	0.815	0.011	0.804-0.825	Ref.	Ref.
OSTA ≤ 0	0.842	0.010	0.832-0.851	3.692	<0.001	0.055	<0.001
OSTA ≤ 0.62	0.850	0.009	0.841-0.859	4.048	<0.001	0.071	<0.001
40 to 65-year-old
OSTA ≤-1	0.572	0.025	0.551-0.592	Ref.	Ref.
OSTA ≤ 0	0.669	0.033	0.649-0.689	3.428	<0.001	0.195	0.003
OSTA ≤ 0.62	0.724	0.033	0.706-0.743	4.693	<0.001	0.305	<0.001
More than 40-year-old
OSTA ≤-1	0.779	0.011	0.765-0.793	Ref.	Ref.
OSTA ≤ 0	0.792	0.010	0.778-0.805	1.637	0.102	0.025	0.126
OSTA ≤ 0.62	0.790	0.009	0.776-0.803	1.153	0.249	0.021	0.293