| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| correlation between etco2 and paco2 | 0.47 | 0.2 | 7396 | 44 | 35 |
| correlation | 1.52 | 0.7 | 3394 | 70 | 11 |
| between | 1.81 | 0.1 | 2718 | 29 | 7 |
| etco2 | 0.97 | 0.9 | 9330 | 66 | 5 |
| and | 1.27 | 0.3 | 8971 | 24 | 3 |
| paco2 | 0.12 | 0.6 | 1393 | 46 | 5 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| correlation between etco2 and paco2 | 0.92 | 0.4 | 5085 | 19 |
