| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| definition of a case control study | 1.72 | 0.9 | 1872 | 89 | 34 |
| definition | 1.9 | 0.2 | 7979 | 33 | 10 |
| of | 1.13 | 0.5 | 9372 | 60 | 2 |
| a | 1.3 | 0.4 | 4519 | 52 | 1 |
| case | 1.51 | 0.9 | 5277 | 23 | 4 |
| control | 0.26 | 1 | 1151 | 47 | 7 |
| study | 0.06 | 0.4 | 9620 | 99 | 5 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| definition of a case control study | 1.13 | 0.6 | 1938 | 27 |
