摘要
目的探讨常规肿瘤标志物参考变化值(RCV)和参考变化因子(RCF)单向、双向分别在不同概率下(P <0. 05,P <0. 01)的应用比较研究。方法根据参考变化值(RCV)及参考变化因子(RCF)公式计算常规肿瘤标志物在不同概率下的数值。结果常规肿瘤标志物的RCV(单向,双向在P <0. 05时)分别为AFP(30. 99%,36. 81%),CEA (30. 48%,36. 21%),CA125(64. 30%,76. 39%),CA153(15. 68%,18. 62%),CA199(40. 60%,48. 23%)和t PSA(43. 19%,51. 30%)。RCV(单向,双向在P <0. 01时)分别为AFP(43. 76%,48. 45%),CEA(43. 05%,47. 67%),CA125(90. 81%,100. 55%),CA153(22. 14%,24. 52%),CA199(57. 33%,63. 48%)和t PSA(60. 99%,67. 53%)。RCF(单向,双向在P <0. 05时) RCFUP-DOWN分别为AFP(1. 36%,0. 74%,1. 44%,0. 69%),CEA(1. 36%,0. 74%,1. 44%,0. 69%),CA125(1. 90%,0. 53%,2. 15%,0. 47%),CA153(1. 17%,0. 85%,1. 2%,0. 83%),CA199(1. 50%,0. 67%,1. 62%,0. 62%)和t PSA(1. 54%,0. 65%,1. 67%,0. 60%)。RCF (单向,双向在P <0. 01) RCFUP-DOWN分别为AFP(1. 55%,0. 65%,1. 62%,0. 62%),CEA (1. 54%,0. 65%,1. 61%,0. 62%),CA125 (2. 48%,0. 40%,2. 73%,0. 37%),CA153(1. 25%,0. 80%,1. 28%,0. 78%),CA199 (1. 77%,0. 56%,1. 89%,0. 53%)和t PSA (1. 84%,0. 54%,1. 96%,0. 51%)。结论在相同概率下,双侧RCV值高于单侧,而RCF值变化不大。参考变化值RCV仅适用两次检测结果之间的分析,在多于两个连续检测结果时应使用RCF,当RCF作为临床决策工具时可对首诊病人做出正面和负面的预测值,为临床诊断提供科学依据。
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