Review Article
An Overview of the Intrinsic Role of Citrullination in Autoimmune Disorders
Table 10
Distribution and incidence of RA.
| | Studied group | Incidence ratio |
| | Females vs males | 2 : 1 to 3 : 1 | | Caucasian from North America | 100 case per 100,000 | | Rural and urban Africans | 20-90 case per 100,000 | | Native Americans | 500 case per 100,000 | | Asians | 20-45 case per 100,000 | | Caucasian from Europe | 5-89 case per 100,000 | | Latin America | 10-50 case per 100,000 | | Middle East countries | 10-50 case per 100,000 |
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