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Table 1 Expected Costs and Benefits of Silica Exposure Reduction Interventions

From: A probabilistic approach for economic evaluation of occupational health and safety interventions: a case study of silica exposure reduction interventions in the construction sector

InterventionsWM-LEV-PPEWM-LEVWM-PPEWMLEV-PPELEVPPE
Protected workersa100%100%100%60%100%40%100%
Lung cancer cases avertedb10795102551014096
Averted costs (benefits)
 Direct$9.5 M$8.4 M$9.0 M$4.9 M$8.9 M$3.5 M$8.6 M
 Indirect$41.2 M$36.6 M$39.3 M$21.1 M$38.8 M$15.3 M$37.1 M
 Intangible$133.9 M$119.1 M$127.6 M$68.6 M$126.0 M$49.7 M$120.7 M
Total$184.5 M$164.2 M$175.9 M$94.5 M$173.8 M$68.5 M$166.4 M
Intervention costs
 WMc-$42.0 M-$42.0 M-$42.0 M-$42.0 M$0$0$0
 LEVd-$15.5 M-$15.5 M$0$0-$15.5 M-$15.5 M$0
 PPEe-$81.1 M$0-$81.1 M$0-$81.1 M$0-$81.1 M
Total-$138.6 M-$57.6 M-$123.1 M-$42.0 M-$96.6 M-$15.5 M-$81.1 M
Net benefitf$45.9 M$106.6 M$52.8 M$52.5 M$77.2$53.0 M$85.3 M
Benefit to cost ratiog1.32.91.42.21.84.42.1
  1. Note. aPercentage of the silica-exposed workers in construction sector that are protected by each intervention, bexpected number of the occupational lung cancer cases averted, ctotal cost of implementing WM, dtotal cost of implementing LEV, etotal cost of implementing PPE, fdifference between cost of lung cancer cases averted and cost of intervention, gcalculated by dividing the total benefits by the total costs of an intervention. Due to rounding, columns, and rows may not sum to 100%, All table monetary values are in 2017 Canadian dollars