Research Article

Prevalence of Fracture Risk Factors in Postmenopausal Women Enrolled in the POSSIBLE US Treatment Cohort

Table 4

Self-reported on-study fracture among pharmacologically treateda POSSIBLE US subjects stratified by the National Osteoporosis Foundation treatment thresholds.

Number of subjects with FRAX score FRAX predicted 10-year risk of
  ≥3% for hip fracture
FRAX predicted 10-year risk of
 ≥20% for major osteoporotic
     fracture
 FRAX score ≥ intervention
 threshold for either hip or
 major osteoporotic fractures
N = 2,996
n (%)
Yes
(N = 1,039)
n (%)
No
(N = 1,957)
n (%)
P-valueYes
(N = 610)
n (%)
No
(N = 2,386)
n (%)
P-valueYes
(N = 1,062)
n (%)
No
(N = 1,934)
n (%)
P-value

No on-study fracture2,623 (87.6)865 (83.3)1,758 (89.8)<0.0001492 (80.7)2,131 (89.3)<0.0001885 (83.3)1,738 (89.9)<0.0001
Any on-study fracture373 (12.5)174 (16.8)199 (10.2)118 (19.3)255 (10.7)177 (16.7)196 (10.1)
Any osteoporosis-
related fracture
240 (8.0)126 (12.1)114 (5.8)<0.000193 (15.3)147 (6.2)<0.0001127 (12.0)113 (5.8)<0.0001
 Hip fracture48 (1.6)34 (3.3)14 (0.7)<0.000130 (4.9)18 (0.8)<0.000135 (3.3)13 (0.7)<0.0001
 Spine fracture54 (1.8)32 (3.1)22 (1.1)0.000129 (4.8)25 (1.1)<0.000132 (3.0)22 (1.1)0.0002
 Nonhip/non-
 spine fracture
169 (5.6)79 (7.6)90 (4.6)0.000752 (8.5)117 (4.9)0.000580 (7.5)89 (4.6)0.0009
Multiple osteoporosis-
related fractures
72 (2.4)41 (4.0)31 (1.6)0.000134 (5.6)38 (1.6)<0.000142 (4.0)30 (1.6)<0.0001

Subjects who reported the use of pharmacological monotherapy or combination therapy at study entry or initiated pharmacological therapy within 2 months of entry.
P value is for pairwise (yes/no) comparisons with percentage of specified fracture risk outcome for each risk category.