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tPSA(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tPSA(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tPSA(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tPSA(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.