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Prevalence per age group of antibodies against virulence-associated YOPs of Yersinia enterocolitica (YOP IgG-Ab and YOP IgA-Ab) in sera of 803 female relatives of patients with autoimmune thyroid disease
| Age | n | YOP IgG-Ab n (%) | YOP IgA-Ab n (%) |
|---|---|---|---|
| 18–29 year | 295 | 123 (41·7%) | 69 (23·4%) |
| 30–39 year | 215 | 88 (40·9%) | 45 (20·9%) |
| 40–49 year | 170 | 64 (37·6%) | 36 (21·2%) |
| 50–59 year | 94 | 36 (38·3%) | 18 (19·1%) |
| 60–69 year | 29 | 11 (37·9%) | 8 (27·6%) |
