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Table 2 Proportion of patients in the index fragility fracture cohort with second fracture occurring at any fracture site, by subgroups

From: Fragility fracture identifies patients at imminent risk for subsequent fracture: real-world retrospective database study in Ontario, Canada

Subgroups (n)a

Second fracture, any fracture site % (n)b

By sex

 Women (83,690)

19.3% (16,194)

 Men (32,086)

13.8% (4435)

By age category

 66–70 (17,998)

13.0% (2331)

 71–75 (17,847)

15.3% (2737)

 76–80 (20,596)

18.3% (3759)

 81–85 (24,119)

20.4% (4911)

  ≥ 86 (35,216)

19.6% (6891)

By sex and age category

 Women < 75 years old (n = 22,544)

14.7% (3312)

 Women ≥75 years old (n = 61,146)

21.1% (12,882)

 Men < 75 years old (n = 9595)

12.0% (1155)

 Men ≥75 years old (n = 22,491)

14.6% (3280)

By index fracture sitec

 Vertebral (7721)

23.0% (1775)

 Pelvis (8328)

21.3% (1775)

 Radius/ulna (4828)

20.2% (974)

 Multisite (3735)

20.1% (752)

 Humerus (13,237)

18.9% (2507)

 Clavicle/ribs/sternum (14,559)

18.7% (2718)

 Wrist (17,859)

17.7% (3160)

 Femur (3002)

16.0% (481)

 Hip (31,613)

15.9% (5025)

 Tibia/fibula/knee (10,894)

13.4% (1462)

  1. a Subgroups included in the assessment of BMD and osteoporosis treatment
  2. b Percent of respective subgroup
  3. c Index fragility fracture cases from January 1, 2011 to March 31, 2015. Second fragility fracture cases from the date of index event to March 31, 2017. Reported from highest to lowest proportion of second fractures