β-Crosslaps和PINP在绝经后妇女骨质疏松诊断中的效能评价

被引:27
作者
刘刚
卢光琇
机构
[1] 中南大学生殖与干细胞工程研究所
关键词
骨质疏松,绝经后; 胶原; 前胶原N端肽酶; 诊断;
D O I
暂无
中图分类号
R580 [];
学科分类号
摘要
目的评价β胶原特殊序列(β-Crosslaps)和总骨[型前胶原N端肽(PINP)在老年妇女骨质疏松诊断中的灵敏性、特异性及准确性。方法 69例50~70岁绝经后妇女应用双能X线骨密度仪(DXA)测量腰椎和股骨骨密度(BMD),依据T评分并参照世界卫生组织标准进行诊断。根据有无骨质疏松,将69例妇女分为骨质疏松组(OP组)和健康组。测定所有妇女PINP和β-Crosslaps及雌二醇(E2)水平。采用SPSS13.0软件建立ROC曲线,并计算ROC曲线下面积,评价β-Crosslaps和PINP在老年妇女骨质疏松诊断中的灵敏性、特异性及准确性。结果用β-Crosslaps诊断绝经后老年妇女骨质疏松的最佳分界值为0.995ng/mL,敏感性为78.0%,特异性为82.1%;用PINP诊断绝经后老年妇女骨质疏松的最佳分界值为34.5 ng/mL,敏感性为65.9%,特异性为85.7%。结论β-Crosslaps和PINP在老年妇女骨质疏松诊断中有较好的灵敏性、特异性,是诊断绝经后妇女骨质疏松的较理想指标。ROC曲线下面积比较结果显示,β-Crosslaps比PINP具有更高的诊断准确性。
引用
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页码:801 / 802
页数:2
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