Variable | RT-PCR confirmed Influenza | ILI | |||||
---|---|---|---|---|---|---|---|
OR | 95% CI | p-value | OR | 95% CI | p-value | ||
Complete Data | Intervention Group* | ||||||
Control Group | Ref. | Ref. | |||||
Mask Group | 0.39 | 0.13-1.17 | 0.09 | 0.61 | 0.2-1.87 | 0.39 | |
Mask & Hygiene Group | 0.62 | 0.23-1.65 | 0.34 | 0.50 | 0.16-1.58 | 0.24 | |
Intervention Groups combined* | |||||||
Control Group | Ref. | Ref. | |||||
Mask Group + Mask & Hygiene Group | 0.50 | 0.21-1.19 | 0.12 | 0.55 | 0.22-1.40 | 0.21 | |
2009/2010 | Intervention Group* | ||||||
Control Group | Ref. | Ref. | |||||
Mask Group | 0.34 | 0.07-1.76 | 0.20 | 0.74 | 0.17-3.2 | 0.68 | |
Mask & Hygiene Group | 0.23 | 0.05-1.13 | 0.07 | 0.41 | 0.09-1.84 | 0.24 | |
Intervention Groups combined* | |||||||
Control Group | Ref. | Ref. | |||||
Mask Group + Mask & Hygiene Group | 0.28 | 0.08-1.05 | 0.06 | 0.54 | 0.16-1.85 | 0.32 | |
2010/2011 | Intervention Group* | ||||||
Control Group | Ref. | Ref. | |||||
Mask Group | 0.35 | 0.07-1.63 | 0.18 | 0.37 | 0.06-2.35 | 0.3 | |
Mask & Hygiene Group | 1.0 | 0.26-3.78 | 1.0 | 0.55 | 0.09-3.44 | 0.5 | |
Intervention Groups combined* | |||||||
Control Group | Ref. | Ref. | |||||
Mask & Hygiene Group | 0.63 | 0.19-2.11 | 0.45 | 0.45*** | 0.1-2.0 | 0.3 | |
Implementation of intervention < 36 h after symptom onset | Intervention Group** | ||||||
Control Group | Ref. | Ref. | |||||
Mask Group | 0.21 | 0.02-2.02 | 0.18 | 0.63 | 0.08-4.92 | 0.66 | |
Mask & Hygiene Group | 0.13 | 0.01-1.28 | 0.08 | 0.17 | 0.01-2.03 | 0.16 | |
Intervention Groups combined** | |||||||
Control Group | Ref. | Ref. | |||||
Mask Group + Mask & Hygiene Group | 0.16 | 0.03-0.92 | 0.04 | 0.34 | 0.06-2.13 | 0.25 | |
Only A/H1N1 pdm09 Infection | Intervention Group* | ||||||
Control Group | Ref. | Ref. | |||||
Mask Group | 0.37 | 0.12-1.19 | 0.10 | 0.55 | 0.17-1.84 | 0.33 | |
Mask & Hygiene Group | 0.27 | 0.07-0.99 | 0.049 | 0.26 | 0.06-1.15 | 0.08 | |
Intervention Groups combined* | |||||||
Control Group | Ref. | Ref. | |||||
Mask Group + Mask & Hygiene Group | 0.33 | 0.12-0.88 | 0.027 | 0.41 | 0.14-1.19 | 0.1 |