In HH, CDP and normal group. According to the peak LH/FSH ratio ROC , the sensitivity and specificity is 87. 5%, and 52. 4% respectively, when the cut-off point of peak LH/FSH ratio is 1.0.

• 简化抽血点即仅分析0、60及120分钟三个时间点血清LH水平，精简前后正常组和HH组的诊断判定结果相同，而精简后CDP组有2例假阴性患者，但一年后再次随访或重复GnRH兴奋试验则可以确诊为CDP。