Table 4.

Distribution of all fractures by cause among women and men following their new diagnosis of RA made between 1955 and 2007, in Olmsted County, Minnesota, and/or equivalent index date for matched non-RA subjects, stratified by age at RA diagnosis/index date. Only fractures occurring over their followup, which ended at the earlier followup of the matched pair, are considered.

Sex and Age GroupsSubjectsnFracture Cause
Severe Trauma n (%)*Falls from Standing n (%)*Spontaneous n (%)*Pathological n (%)*Uncertain n (%)*All Causes n
Women ≥ 50 yrsRA51483 (16)191 (36)190 (36)21 (4)49 (9)534
Non-RA51460 (17)132 (37)127 (36)13 (4)23 (6)355
Women < 50 yrsRA30862 (22)67 (24)124 (44)0 (0)28 (10)281
Non-RA30847 (44)29 (27)23 (21)1 (1)8 (7)108
Women < 50 yrs**RA30820 (25)11 (14)33 (42)0 (0)15 (19)79
Non-RA30821 (51)12 (29)4 (10)0 (0)4 (10)41
Men ≥ 50 yrsRA23945 (24)55 (29)68 (36)5 (3)14 (7)187
Non-RA23914 (15)29 (31)31 (33)5 (5)14 (15)93
Men < 50 yrsRA11015 (25)12 (20)30 (49)1 (2)3 (5)61
Non-RA11032 (57)4 (7)16 (29)1 (2)3 (5)56
Men < 50 yrs**RA1108 (50)2 (12)5 (31)1 (6)0 (0)16
Non-RA11020 (71)3 (11)4 (14)0 (0)1 (4)28
  • * Percentage (%) of each type of fracture.

  • ** Followup ended at age ≤ 50 yrs.