To compare the data of the lactulose group with those from the ... 12.4 38.1 ± 8.8 30.7 ± 7.0 33.5 ± 11.7 Female sex 3 4 5 4 Disease duration (years)* 8.3 ± 12.2 9.3 ± 5.0 5.0 ± 5.4 6.7 ...