Surgically induced weight loss by gastric bypass improves non alcoholic fatty liver disease in morbid obese patients

Table 3 Histological scores for the 26-paired biopsies

	Scores					P value
Feature	0	1	2	3	4
Steatosis						< 0.001
Pre	0	13	8	5	-
Post	24	2	0	0	-
Ballooning degeneration						< 0.001
Pre	10	8	7	1	-
Post	25	1	0	0	-
Mallory bodies						0.005
Pre	18	8	0
Post	26	0	0
Glycogen nuclei						0.001
Pre	8	7	11
Post	13	8	5
Lobular inflammation						< 0.001
Pre	1	23	2	0
Post	15	11	0	0
Portal inflammation						0.05
Pre	1	23	2	0
Post	7	19	0	0
Fibrosis						0.001
Pre	1	17	6	2	0
Post	9	12	4	1	0