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Table 4 Ethnic variation in prevalence of rheumatoid arthritis: studies using two-stage screening

From: Risk for rheumatic disease in relation to ethnicity and admixture

   

Prevalence/1000

Ethnic origin

Location

Age (years)

Males

Females

Both

Pima

Arizona, USA [31]

>20

10

31

 

Yakima

Washington, USA [33]

18–79

N/A

34

 

European

Minnesota, USA [35]

35–85

7.4

14

 

European and Afro-American

NHANES, USA [30]

18–79

6

15

 

European

Manchester, UK [36]

45–65

  

8

Afro-Caribbean

Manchester, UK [36]

44–66

  

2.9

  1. NHANES, National Health and Nutrition Examination Survey.