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Table 2 Percentage of persons required to undertake one of the two interventions in order to lower the number of femoral fractures (prevented fraction) in community-dwelling persons aged 65 years and older in 2014

From: The impact of preventive measures on the burden of femoral fractures – a modelling approach to estimating the impact of fall prevention exercises and oral bisphosphonate treatment for the years 2014 and 2025

Fall prevention exercise (FPE) Percentage of persons aged 70 to 89 years needed to participate in order to achieve the targeted reduction
  Assumed reduction in 2014 by
  10 % 15 % 20 % 25 %
Prevented fraction based on a relative risk of 0.39 20.9 31.3 41.8 52.2
Sensitivity analysis  
Lower boundary of 95 % CI: 0.22 16.3 24.5 32.7 40.8
Upper boundary of 95 % CI: 0.66 37.5 56.2 74.9 93.7
Bisphosphonates Percentage of persons aged 65 years and older with osteoporosisb needed to receive medication in order to achieve the targeted reduction
  Reduction in 2014 by
  10 % 15 % 20 % 25 %
Prevented fraction based on a relative risk of 0.58 36.9 55.3 73.7 92.2
Sensitivity analysis  
Lower boundary of 95 % CI: 0.42 26.7 40.1 53.4 66.7
Upper boundary of 95 % CI: 0.80 77.4 a a a
  1. a > 100 %; b (T-score ≤ −2.5)