Table 4

Cost effectiveness ratios and sensitivity analyses: cost of implementing the exercise programme per fall event prevented in exercise group compared with control group participants

Cost scenario After one year ($) After two years ($)
Cost per fall prevented:
 Total cost of exercise programme314265
 125th centile total cost of exercise programme393331
 75th centile total cost of exercise programme236199
 × 4 travel distance420347
 × 4 cost ankle cuff weights427352
 × 2 recruitment costs354296
 Overhead costs calculated as 85% salaries395335
 No extra overhead costs incurred233196
Adjusted cost per fall prevented4-150:
 Total cost of exercise programme379353
 125th centile total cost of exercise programme474441
 75th centile total cost of exercise programme284264
 × 4 travel distance506462
 × 4 cost ankle cuff weights514469
 × 2 recruitment costs427394
 Overhead costs calculated as 85% salaries476446
 No extra overhead costs incurred281261
Cost per injurious fall prevented:
 Total cost of exercise programme457426
 125th centile total cost of exercise programme572532
 75th centile total cost of exercise programme343319
 × 4 travel distance611558
 × 4 cost ankle cuff weights621567
 × 2 recruitment costs515476
 Overhead costs calculated as 85% salaries574538
 No extra overhead costs incurred339315
Adjusted cost per injurious fall prevented4-150:
 Total cost of exercise programme535509
 125th centile total cost of exercise programme669636
 75th centile total cost of exercise programme401381
 × 4 travel distance715667
 × 4 cost ankle cuff weights726677
 × 2 recruitment costs603568
 Overhead costs calculated as 85% salaries672643
 No extra overhead costs incurred396377

  • Average exchange rate in 1995 New Zealand $1.00 = UK £0.42, USA $0.66.

  • ↵4-150 Calculated using fall events per 100 person years to adjust for the variable follow up times for women in the study.