Frost L, Møller J
Department of Obstetrics and Gynecology, University Hospital of Aarhus, Denmark.
Acta Obstet Gynecol Scand. 1987;66(7):631-2. doi: 10.3109/00016348709022069.
A commercially highly sensitive test for human chorionic gonadotropin was used in daily routine to screen for ectopic pregnancy (detection threshold 75 mlU/ml). The test, when used in 120 patients with ectopic pregnancy, had a diagnostic specificity of 100%, sensitivity 96.7%, the predictive value of a positive test was 100%, and of a negative test 90%.
一种临床上高度敏感的人绒毛膜促性腺激素检测方法被用于日常筛查异位妊娠（检测阈值为75毫国际单位/毫升）。该检测方法应用于120例异位妊娠患者时，诊断特异性为100%，敏感性为96.7%，阳性检测的预测值为100%，阴性检测的预测值为90%。
