Table 1 Demographic data of MEPS study group.

From: RETRACTED ARTICLE: Middle east pain syndrome is a pollution-induced new disease mimicking rheumatoid arthritis

MEPS

No

%

Age years

Female sex

Duration years

N

%

Seropositive

72

18

40 ± 13

220

55

1.27 ± 0.82

Seronegative

328

82

39 ± 16

180

45

1.17 ± 0.90

Total

400

100

   

1.22 ± 0.86

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