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Table 2 Cost-effectiveness of an intervention based on baseline ventilator-associated pneumonia rate and its relative risk reduction

From: Number needed to treat and cost-effectiveness in the prevention of ventilator-associated pneumonia

  Relative risk reduction
  5% 10% 15% 20% 25% 30% 35% 40% 45% 50%
Baseline VAP rate           
1% £5 £10 £15 £20 £25 £30 £35 £40 £45 £50
2% £10 £20 £30 £40 £50 £60 £70 £80 £90 £100
4% £20 £40 £60 £80 £100 £120 £140 £160 £180 £200
6% £30 £60 £90 £120 £150 £180 £210 £240 £270 £300
8% £40 £80 £120 £160 £200 £240 £280 £320 £360 £400
10% £50 £100 £150 £200 £250 £300 £350 £400 £450 £500
15% £75 £150 £225 £300 £375 £450 £525 £600 £675 £750
20% £100 £200 £300 £400 £500 £600 £700 £800 £900 £1,000
  1. Values (£) refer to the average additional expense that can be spent for an intervention, per 10 days of mechanical ventilation, for it to be cost-neutral assuming a VAP cost of £10,000. VAP, ventilator-associated pneumonia.