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gi-hepatology

Simplified Autoimmune Hepatitis Score

Simplified scoring system for diagnosis of autoimmune hepatitis (AIH). Score ≥7 = definite AIH; ≥6 = probable AIH. Easier to apply clinically than the original IAIHG score.

Score interpretation

AIH Unlikely -10–5

Score <6 — autoimmune hepatitis unlikely

→ Investigate other causes; repeat serology if clinical suspicion remains

Probable AIH 6

Score 6 — probable autoimmune hepatitis

→ Start immunosuppression (prednisolone ± azathioprine) if LFTs elevated; hepatology review; liver biopsy if not already done

Definite AIH 7–20

Score ≥7 — definite autoimmune hepatitis

→ Commence immunosuppression; prednisolone 40 mg/day with planned azathioprine; aim for biochemical remission (AST/ALT normal, IgG normal)

Interpretation bands for the Simplified AIH Score. Apply clinical judgement and local guidance.

References

Related

Curated clinical cross-links plus same-class fallbacks.

Decision support only — verify against a current formulary, NICE, or your local guideline before clinical use.