Table 1 Characteristics of the full, derivation, and validation samples

New fractures within one year from initial assessment

11,526 (3.6)

8679 (3.7)

2847 (3.6)

 Hip

5057 (1.6)

3822 (1.6)

1235 (1.6)

 Other fracture (spine, pelvis, humerus, wrist)

6959 (2.2)

5228 (2.2)

1731 (2.2)

 18 to 50

14,354 (4.5)

10,693 (4.5)

3661 (4.6)

 50 to 64

37,652 (11.9)

28,297 (11.9)

9355 (11.8)

 64 to 80

96,429 (30.4)

72,222 (30.4)

23,207 (30.4)

 80+

169,137 (53.3)

126,763 (52.3)

42,374 (53.2)

Female

191,510 (60.3)

14,365 (60.3)

48,045 (60.4)

Unsteady gait

216,283 (68.1)

162,021 (68.1)

54,262 (68.2)

Wandering

10,165 (3.2)

7695 (3.2)

2470 (3.1)

Tobacco use

27,793 (8.8)

20,772 (8.7)

7021 (8.8)

Fall in last 180 days

143,666 (45.2)

107,588 (45.2)

36,074 (45.3)

Previous fracture in the last 180 days

43,569 (13.7)

32,564 (13.7)

11,005 (13.8)

 Independent (0)

207,607 (65.4)

155,698 (65.4)

51,909 (65.2)

 Supervision or set up help (1, 2)

43,085 (13.6)

32,292 (13.6)

10,793 (13.6)

 Limited assistance (3)

28,550 (9.0)

21,244 (8.9)

7306 (9.2)

 Extensive or maximal assistance (4, 5)

27,608 (8.7)

20,750 (8.7)

6858 (8.6)

 Total dependence or did not occur (6, 8)

10,771 (3.4)

8027 (3.4)

2744 (3.4)

 No aid

117,271 (36.9)

88,060 (37.0)

29,209 (36.7)

 Cane or walker

158,444 (49.9)

118,524 (49.8)

39,918 (50.1)

 Scooter, wheelchair, or did not occur

41,911 (13.2)

31,427 (13.2)

10,483 (13.2)

 Intact (0)

107,057 (33.7)

80,222 (33.7)

26,833 (33.7)

 Mild impairment (1, 2)

162,604 (51.2)

121,648 (51.1)

40,954 (51.4)

 Moderate impairment (3, 4)

34,339 (10.8)

25,883 (10.9)

8455 (10.6)

 Severe impairment (5, 6)

13,626 (4.3)

10,258 (4.3)

3368 (4.2)