From: Decrease in the incidence of total hip arthroplasties in patients with rheumatoid arthritis - results from a well defined population in south Sweden
N
2,164
Female
1,545 (71%)
Mean age at RA diagnosis (SD)
51.4 (16.7)
RA diagnosis in 1997 or earlier
1,481 (68.4%)
RA diagnosis after 1997
683 (31.6%)