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Table 3 Incidence rates of fractures for study population, by anatomic site and sex

From: Risk of osteoporotic fracture in a large population-based cohort of patients with rheumatoid arthritis

Anatomic site RA patients Non-RA patients §  
  Fractures, n Person-years IR
(95% CI)
Fractures, n Person-years IR
(95% CI)
RR
(95% CI)
All        
   Wrist 234 92,167 2.5
(2.2-2.9)
1,088 492,138 2.2
(2.1-2.3)
1.15
(1.0-1.32)
   Humerus 143 92,326 1.6
(1.3-1.8)
498 493,117 1.0
(0.9-1.1)
1.53
(1.27-1.84)
   Hip 311 92,161 3.4
(3-3.7)
1,027 492,569 2.1
(2-2.2)
1.62
(1.43-1.84)
   Pelvis 304 92,100 3.3
(2.9-5.7)
804 492,735 1.6
(1.5-1.7)
2.02
(1.77-2.30)
   Any site 872 91,314 9.6
(8.9-10.2)
3,096 488,929 6.3
(6.1-6.6)
1.51
(1.40-1.63)
Women        
   Wrist 197 67,533 2.9
(2.5-3.3)
933 357,899 2.6
(2.4-2.8)
1.12
(0.96-1.31)
   Humerus 130 67,646 1.9
(1.6-2.3)
432 358,719 1.2
(1.1-1.3)
1.60
(1.32-1.95)
   Hip 253 67,535 3.8
(3.3-4.2)
873 358,252 2.4
(2.3-2.6)
1.54
(1.34-1.77)
   Pelvis 267 67,449 4.0
(3.5-4.4)
700 358,388 2.0
(1.8-2.1)
2.03
(1.76-2.34)
   Any site 742 66,785 11.1
(10.3-11.9)
2,653 355,094 7.5
(7.2-7.8)
1.49
(1.37-1.62)
Men        
   Wrist 37 24,634 1.5
(1.0-2.0)
155 134,239 1.2
(1.0-1.3)
1.30
(0.91-1.86)
   Humerus 13 24,680 0.5
(0.2-0.8)
66 134,398 0.5
(0.4-0.6)
1.08
(0.60-1.96)
   Hip 58 24,626 2.4
(1.8-3.0)
154 134,317 1.2
(1.0-1.3)
2.05
(1.52-2.77)
   Pelvis 37 24,651 1.5
(1.0-2.0)
104 134,346 0.8
(0.6-0.9)
1.95
(1.34-2.84)
   Any site 130 24,530 5.3
(4.4-6.2)
443 133,835 3.3
(3.0-3.6)
1.60
(1.32-1.95)
  1. Rates are shown per 1,000 person-years. , unadjusted. §, 1:5 matched on age and sex. CI, confidence interval; IR, incidence rates;. RR, rate ratio.