Table 3 Risk reduction and NNT for contracting influenza during hospital-stay. Numbers shown for HCAI influenza cases in relation to mean number of exposed cases (1, 2 and 3) and effect of increased share of exposed cases receiving prophylaxis (0–100%)
From: System dynamic modelling of healthcare associated influenza -a tool for infection control
Mean exposed (n) | HCAI (n) Prophylaxis 0% | HCAI (n) Prophylaxis 100% | ARR | RRR | RR | NNT |
|---|---|---|---|---|---|---|
1 | 92 | 17 | 0.02 | 0.81 | 0.19 | 45 |
2 | 235 | 33 | 0.06 | 0.85 | 0.15 | 18 |
3 | 432 | 54 | 0.10 | 0.86 | 0.14 | 10 |