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Table 4 Prevalence of spondyloarthropathy in China

From: Rheumatic Diseases in China

Site of survey [ref.]

Location

Age (Years)

Ethnic

Time

Number

Prevalence (%)

      

AS

PsA

ReA

uSpA

Taiwan [4]

Island

≥17

Han

1974

5,629

0.2

   

Beijing [9]

Rural

≥20

Han

1987

4,192

0.26

   

Beijing [31]

Urban

≥16

Han

1999

1,982

0.3

0.10

 

1.21

Taiyuan [40]

Urban

≥16

Han

2004

3,915

0.2

0.05

 

0.64

Shandong [25]

Rural

≥16

Han

1996

5,055

0.22

0.04

0.02

 

Shanghai [3]

Urban

≥16

Han

1992

2,010

0.20

   

Taiwan [19]

Urban

≥20

Han

1992

3,000

0.4

   

Taiwan [19]

Suburban

≥20

Han

1992

3,000

0.19

   

Taiwan [19]

Rural

≥20

Han

1992

2,998

0.54

   

Shantou [8]

Rural

≥16

Han

1985

10,647

0.20

   

Shantou [9]

Rural

≥20

Han

1987

5,058

0.26

   

Shantou [23]

Urban

≥16

Han

1995

2,040

0.2

   

Shantou [30]

Suburban

≥16

Han

1999

2,029

0.3

0.05

 

1.0

Military [35]

15 provinces

17 to 40a

11 ethnics

2000

20,068

0.24

   

Heilongjiang [12]

Mountain

≥18

H and Mac

1989

2,311

0.09

   

Changchun [6]

Factory

≥20b

H and Mac

1980

36,097

0.06

0.01

  

Ningxia [14]

Highland

≥18

H and Mud

1990

10,420

0.10

   
  1. aAll male. bMale > female. cHan and Manchu. dHan and Muslin. AS, ankylosing spondylitis; PsA, psoriatic arthritis; ReA, reactive arthritis; uSpA, undifferentiated spondyloarthropathy.