Table 2.

Orthopedic surgery rates (at 10 years after RA incidence) for 813 patients with incident rheumatoid arthritis (RA) in Olmsted County, Minnesota 1980–2007 by time period of RA incidence

Type / site of surgery	Number of patients with surgery	Complete cohort 1980–2007	1980–1994	1995–2007	p-value comparing 1980–1994 to 1995–2007
Total: Any surgeries	189	24.6 ± 1.8	27.3 ± 2.4	19.5 ± 2.6	0.08
Types
Primary total joint arthroplasty	109	13.6 ± 1.4	15.2 ± 2.0	10.3 ± 1.9	0.36
Total hip arthroplasty	30	3.4 ± 0.8	3.6 ± 1.0	2.3 ± 0.8	0.77
Total knee arthroplasty	62	7.4 ± 1.1	8.6 ± 1.5	5.3 ± 1.5	0.18
Joint reconstructive procedures	82	9.3 ± 1.2	10.1 ± 1.6	8.1 ± 1.9	0.52
Soft tissue procedures	76	9.6 ± 1.2	12.1 ± 1.8	6.0 ± 1.4	0.012
Revision arthroplasty	14	1.2 ± 0.4	1.8 ± 0.7	0.8 ± 0.6	0.16
Sites
Hip	38	4.4 ± 0.9	5.1 ± 1.2	2.8 ± 1.0	0.72
Knee	72	9.2 ± 1.2	11.0 ± 1.7	6.0 ± 1.5	0.047
Wrist	37	4.3 ± 0.8	5.3 ± 1.2	2.7 ± 0.8	0.14
Shoulder	15	1.9 ± 0.6	1.2 ± 0.6	2.9 ± 1.1	0.26
Elbow	13	1.4 ± 0.5	1.8 ± 0.7	0.3 ± 0.3	0.21
Hand	43	4.8 ± 0.9	6.3 ± 1.3	2.5 ± 1.2	0.059
Ankle	10	0.9 ± 0.4	0.9 ± 0.5	1.0 ± 0.6	0.98
Feet	50	5.4 ± 1.0	5.6± 1.3	5.3 ± 2.2	0.99
Cervical spine	8	0.5 ± 0.3	0.6 ± 0.4	0.4 ± 0.4	0.74

^*values are cumulative incidence (%) ± standard error at 10 years after RA incidence