Table 1. Reported IgG4 thyroiditis in Asian population.
| Source | Country | Database | Design | Prevalence |
|---|---|---|---|---|
| Li et al., 2009 (3) | Japan | Surgical pathology | Retrospective | 5/13 |
| Li et al., 2010 (4) | Japan | Surgical pathology | Retrospective | 19/70 |
| Li et al., 2012 (5) | Japan | Surgical pathology | Retrospective | 28/105 |
| Zhang et al., 2014 (27) | China | Surgical pathology | Retrospective | 12/53 |
| Kawashima et al., 2014 (22) | Japan | Serologic | Prospective | 5/94 |
| Takeshima et al., 2015 (28) | Japan | Serologic | Prospective | 6/149 |
| Zhao et al., 2018 (29) | Singapore | Surgical pathology | Case report | – |