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 | 0.3 | 0.1-0.94 | 0.04 | 0.5 | 0.2-1.6 | 0.3 | |
Mask & Hygiene Group | 0.59 | 0.2-1.5 | 0.3 | 0.49 | 0.2-1.6 | 0.2 | |
Intervention Groups combined* | |||||||
Control Group | Ref. | Ref. | |||||
Mask Group + Mask & Hygiene Group | 0.45 | 0.2-1.1 | 0.07 | 0.5 | 0.2-1.3 | 0.2 | |
2009/2010 | Intervention Group* | ||||||
Control Group | Ref. | Ref. | |||||
Mask Group | 0.21 | 0.03-1.4 | 0.1 | 0.7 | 0.13-3.4 | 0.6 | |
Mask & Hygiene Group | 0.21 | 0.04-1.09 | 0.06 | 0.5 | 0.09-2.2 | 0.3 | |
Intervention Groups combined* | |||||||
Control Group | Ref. | Ref. | |||||
Mask Group + Mask & Hygiene Group | 0.21 | 0.05-0.9 | 0.04 | 0.53 | 0.14-2.08 | 0.4 | |
2010/2011 | Intervention Group* | ||||||
Control Group | Ref. | Ref. | |||||
Mask Group | 0.32 | 0.07-1.49 | 0.15 | 0.4 | 0.06-2.3 | 0.3 | |
Mask & Hygiene Group | 0.94 | 0.25-3.5 | 0.9 | 0.51 | 0.09-3.3 | 0.5 | |
Intervention Groups combined* | |||||||
Control Group | Ref. | Ref. | |||||
Mask Group + Mask & Hygiene Group | 0.6 | 0.2-2.0 | 0.4 | 0.4 | 0.1-1.9 | 0.3 | |
Implementation of intervention < 36 h after symptom onset | Intervention Group** | ||||||
Control Group | Ref. | Ref. | |||||
Mask Group | 0.23 | 0.02-3.02 | 0.26 | 0.7 | 0.07-7.9 | 0.8 | |
Mask & Hygiene Group | 0.21 | 0.02-2.33 | 0.2 | 0.2 | 0.01-3.4 | 0.3 | |
Intervention Groups combined** | |||||||
Control Group | Ref. | Ref. | |||||
Mask Group + Mask & Hygiene Group | 0.22 | 0.03-1.6 | 0.1 | 0.4 | 0.05-3.3 | 0.4 | |
Only A/H1N1 pdm09 Infection | Intervention Group* | ||||||
Control Group | Ref. | Ref. | |||||
Mask Group | 0.28 | 0.08-0.97 | 0.04 | 0.46 | 0.1-1.7 | 0.2 | |
Mask & Hygiene Group | 0.26 | 0.07-0.93 | 0.04 | 0.26 | 0.06-1.17 | 0.08 | |
Intervention Groups combined* | |||||||
Control Group | Ref. | Ref. | |||||
Mask Group + Mask & Hygiene Group | 0.27 | 0.1-0.76 | 0.01 | 0.36 | 0.1-1.1 | 0.08 |