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Table 2 Degrees of esophagogastric varices before and at 6 months after Rex-bypass shunt by gastroscopy

From: Effects of Rex-bypass shunt on the cavernous transformation of the portal vein in children: evaluation by the color Doppler ultrasonography

 AlleviativeUnchangedAggravatedχ2P
Group A (n = 45, %)40 (88.9)2 (4.4)3 (6.7)14.738< 0.001
Group B (n = 5, %)1 (20.0)4 (80.0)0 (0.0)