Treatment and Outcome of Autoimmune Hepatitis (AIH): Audit of 28 UK centres.

BACKGROUND: With few data regarding treatment and outcome of patients with AIH outside of large centres we present such a study of patients with AIH in 28 UK hospitals of varying size and facilities. METHODS: Patients with AIH were identified in 14 University and 14 District General hospitals; incident cases during 2007-2015 and prevalent cases, presenting 2000-2015. Treatment and outcomes were analysed. RESULTS: In 1267 patients with AIH, followed-up for 3.8(0-15) years, 5- and 10-year death/transplant rates were 7.1+0.8% and 10.1+1.3% (all-cause) and 4.0+0.6% and 5.9+1% (liver-related) respectively. Baseline parameters independently associated with death/transplantation for all-causes were: older age, vascular/respiratory co-morbidity, cirrhosis, decompensation, platelet count, attending transplant centre and for liver-related: the last four of these and peak bilirubin All-cause and liver-related death/transplantation was independently associated with: non-treatment with corticosteroids, non-treatment with a steroid-sparing agent (SSA), non-treatment of asymptomatic or non-cirrhotic patients and initial dose of Prednisolone >35mg/0.5mg/kg/day (all-cause only), but not with type of steroid (Prednisolone versus Budesonide) or steroid duration beyond 12-months. Subsequent all-cause and liver-death/transplant rates showed independent associations with smaller percentage fall in serum ALT after 1 and 3-months, but not with failure to normalise levels over 12-months. CONCLUSIONS: We observed higher death/transplant rates in patients with AIH who were untreated with steroids (including asymptomatic or non-cirrhotic sub-groups), those receiving higher Prednisolone doses and those who did not receive an SSA. Similar death/transplant rates were seen in those receiving Prednisolone or Budesonide, those continuing steroids after 12-months and patients attaining normal ALT within 12-months versus not.