Table 4

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

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

NHANES, National Health and Nutrition Examination Survey.

Molokhia and McKeigue Arthritis Res 2000 2:115   doi:10.1186/ar76