Table 2.
Parameter type | Factor |
Clinical | Younger age Male* Non-Caucasian ethnicity Large goitre No other autoimmune conditions |
Biochemical | More severe thyrotoxicosis at diagnosis |
Immunological | High TRAb level at diagnosis High TRAb level on stopping ATD |
Treatment course | Shorter duration of ATD treatment |
Genetic polymorphisms* | eg, HLA subtypes (DB1*02, DQA1*05 and DRB1*03) and PTPN22 (rs2476601) |
*In adult studies only.
ATD, antithyroid drug; HLA, human leucocyte antigen; PTPN22, protein tyrosine phosphatase non-receptor type 22; TRAb, thyroid receptor autoantibodies.