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AIM In order to evaluate the diagnostic parameters of characteristic pathologic change in the liver biopsyspecimens, we developed a numerical scoring diagnostic standard.METHODS Ten of the eleven categories of characteristic pathologic lessions appearing in acute hepatitisand 11 categories in chronic hepatitis were selected. Each of them was graded 3 scales, then the essentialscore and scale score were set up. Adding up to all the numerical scores of individual components, formed thetotal scores of histological chronic activity index (HCAI) and histological acute activity index (HAAI). Onethousand and eight patients with various liver dieases were studied,and compared with conventional readingsand Knodell'HAI through F analysis and q test.RESULTS The HAAI of acute, subacute, and chronic severe hepatitis was 43.56±9.08, 51.63±12.13,and 65.45±17.51 respectively. There was significant difference between each other (P<0.01). TheirHCAI was 14.44±8.31, 57.39±10.98, and 58.14 12.24 respectively. HAAI of mild, moderate, andsevere chronic hepatitis was 18.57±7.00, 26.43±7.49, and 35.58±11.47 respectively (P<0.01), andHCAI was 13.2±6.90, 40.29±10.99, and 50.02±9.78 respectively. There was signficant difference(P<0.01). The HAAI of active liver cirrhosis and silent liver cirrhosis was 64.96±16.60 and 31.17±9.07respectively, the difference being significant (P < 0.01), and HCAI was 66.00±9.62 and 69.84±8.93, withno significant difference (P >0.05).CONCLUSION The diagnostic standard of histological activity index that we set up, was more useful aseither an alternative or supplement to the conventional terminology and KnodellHAI.
