Fig. 1From: Assessing risk of liver enzyme elevation in patients with immune-mediated diseases and different hepatitis B virus serostatus receiving anti-TNF agents: a nested case-control studyCohort identification and ascertainment of cases and controls. Bold white numbers indicate selected case and control patients, plain numbers indicate cases with no control in the sub-cohort and vice versa. AS ankylosing spondylitis, PsO psoriasis, PsA psoriatic arthritis, RA rheumatoid arthritis, TNF tumour necrosis factorBack to article page