The discriminating level of the ascitic AFU activities in 120nKat/L have an 81.82% sensitivity, 88.10% specificity and 84.37% diagnostic efficiency for malignant ascites.

• 腹水AFU活性以120nKat/L作为最佳界值；其诊断恶性腹水的敏感性为81.；82%25；特异性为88