Table 1 Number needed to treat in ventilator-associated pneumonia
From: Number needed to treat and cost-effectiveness in the prevention of ventilator-associated pneumonia
| Â | Relative risk reduction | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Â | 5% | 10% | 15% | 20% | 25% | 30% | 35% | 40% | 45% | 50% |
Baseline VAP rate | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
1% | 2,000 | 1,000 | 667 | 500 | 400 | 333 | 286 | 250 | 222 | 200 |
2% | 1,000 | 500 | 333 | 250 | 200 | 167 | 143 | 125 | 111 | 100 |
4% | 500 | 250 | 167 | 125 | 100 | 83 | 71 | 63 | 56 | 50 |
6% | 333 | 167 | 111 | 83 | 67 | 56 | 48 | 42 | 37 | 33 |
8% | 250 | 125 | 83 | 63 | 50 | 42 | 36 | 31 | 28 | 25 |
10% | 200 | 100 | 67 | 50 | 40 | 33 | 29 | 25 | 22 | 20 |
15% | 133 | 67 | 44 | 33 | 27 | 22 | 19 | 16.7 | 15 | 13 |
20% | 100 | 50 | 33 | 25 | 20 | 17 | 14 | 12.5 | 11 | 10 |