Skip to main content

Table 2 Incidence rates of any osteoporotic fractures* for study population, by age and sex

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

Age (years)

RA patients

Non-RA patients§

 
 

Fractures, N

Person-years

IR

(95% CI)

Fractures, N

Person-years

IR

(95% CI)

RR †(95% CI)

All

       

All ages

872

91,315

9.6

(8.9-10.2)

3,096

488,929

6.3

(6.1-6.6)

1.51

(1.40-1.63)

   < 50

92

31,458

2.9

(2.3-3.5)

285

164,629

1.7

(1.5-1.9)

1.69

(1.34-2.14)

   50-64

225

39,376

5.7

(5.0-6.5)

769

203,945

3.8

(3.5-4.0)

1.51

(1.30-1.75)

   65-74

186

11,278

16.5

(14.1-18.9)

504

65,018

7.8

(7.1-8.4)

2.13

(1.80-2.52)

   75-84

236

7,043

33.5

(29.2-37.8)

900

41,385

21.8

(20.3-23.2)

1.54

(1.33-1.78)

   85+

133

2,160

61.6

(51.1-72.1)

638

13,952

45.7

(42.2-49.3)

1.35

(1.12-1.63)

Women

       

All ages

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)

   < 50

73

23,267

3.1

(2.4-3.9)

197

121,361

1.6

(1.4-1.9)

1.94

(1.48-2.54)

   50-64

180

28,631

6.3

(5.4-7.2)

652

145,980

4.5

(4.1-4.8)

1.41

(1.20-1.66)

   65-74

166

8,006

20.7

(17.6-24)

436

45,729

9.5

(8.6-10.4)

2.18

(1.82-2.61)

   75-84

204

5,153

39.6

(34.2-45)

780

30,532

25.6

(23.8-27.3)

1.55

(1.33-1.81)

   85+

119

1,768

67.3

(55.2-79.4)

588

11,492

51.2

(47.0-55.3)

1.32

(1.08-1.61)

Men

       

All ages

130

24,530

5.3

(4.4-6.2)

443

133,835

3.3

(3.0-3.6)

1.60

(1.32-1.95)

   < 50

19

8,231

2.3

(1.3-3.4)

88

43,268

2.0

(1.6-2.5)

1.14

(0.69-1.87)

   50-64

45

10,745

4.2

(3.0-5.4)

117

57,965

2.0

(1.7-2.4)

2.07

(1.47-2.92)

   65-74

20

3,272

6.1

(3.4-8.8)

68

19,289

3.5

(2.7-4.4)

1.73

(1.05-2.85)

   75-84

32

1,890

16.9

(11.1-22.8)

120

10,853

11.1

(9.1-13.0)

1.53

(1.04-2.26)

   85+

14

392

35.8

(17.0-54.5)

50

2,460

20.3

(14.7-26.0)

1.76

(0.97-3.18)

  1. Rates are shown per 1,000 person-years.
  2. §, 1:5 matched on age and sex; *, includes incident fractures of hip, wrist, pelvis, or humerus; †, unadjusted. CI, confidence interval; IR, incidence rates;. RR, rate ratio.