| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| studies on mask effectiveness | 0.59 | 0.3 | 5385 | 46 | 29 |
| studies | 0.34 | 0.1 | 9243 | 31 | 7 |
| on | 0.83 | 0.6 | 3353 | 99 | 2 |
| mask | 0.12 | 1 | 7963 | 24 | 4 |
| effectiveness | 0.23 | 0.5 | 7793 | 94 | 13 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| studies on mask effectiveness | 0.36 | 1 | 9517 | 35 |
| study on mask effectiveness covid | 0.97 | 0.9 | 8299 | 89 |
| cdc mask effectiveness studies | 0.62 | 0.6 | 165 | 33 |
| studies of mask effectiveness against covid19 | 0.35 | 0.4 | 5248 | 40 |
| lancet journal study on mask effectiveness | 1.9 | 0.1 | 2407 | 24 |
| peer reviewed studies of mask effectiveness | 1.13 | 0.2 | 9219 | 36 |
| surgical mask effectiveness studies | 1 | 0.8 | 8594 | 91 |
| medical study on mask effectiveness | 0.4 | 0.8 | 96 | 28 |
| johns hopkins study on mask effectiveness | 1.98 | 1 | 8966 | 70 |
| cochrane study mask effectiveness covid | 1.69 | 0.9 | 3578 | 80 |
| cdc study on mask effectiveness for covid 19 | 1.61 | 0.2 | 8190 | 18 |
| covid mask study results | 1.14 | 0.2 | 6043 | 15 |
| effectiveness of masking for covid | 0.99 | 0.4 | 2702 | 14 |
