Table 3 Frequency of mask usage by type of mask used and time point; Poland, 2020; n = 750–818
From: Use of masks in public places in Poland during SARS-Cov-2 epidemic: a covert observational study
Type of mask | 11.05 | 18.05 | 25.05 | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Usage | Correct usage | Usage | Correct usage | Usage | Correct usage | |||||||
n | % | n | % | n | % | n | % | n | % | n | % | |
Cloth mask | 357 | 64.7% | 231 | 64.7% | 339 | 62.3% | 204 | 60.2% | 323 | 62.6% | 176 | 54.5% |
Medical mask | 129 | 23.4% | 83 | 64.3% | 155 | 28.5% | 102 | 65.8% | 139 | 26.9% | 84 | 60.4% |
N95 respirator | 20 | 3.6% | 16 | 80.0% | 12 | 2.2% | 10 | 83.3% | 18 | 3.5% | 17 | 94.4% |
Face shield | 12 | 2.2% | 11 | 91.7% | 7 | 1.3% | 6 | 85.7% | 8 | 1.6% | 8 | 100.0% |
Othera | 34 | 6.2% | 23 | 67.6% | 31 | 5.7% | 17 | 54.8% | 28 | 5.4% | 19 | 67.9% |