| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| pack years how to calculate | 0.52 | 0.9 | 7769 | 22 |
| how to calculate pack years smoked | 0.67 | 0.4 | 1921 | 67 |
| how to calculate smoking pack years | 1.22 | 0.2 | 3903 | 71 |
| calculate cigarette smoking pack years | 0.21 | 0.8 | 151 | 9 |
| how to calculate pack years of smoking | 1.65 | 0.7 | 779 | 12 |
| how to figure pack years for smokers | 0.47 | 0.6 | 5782 | 85 |
| how to compute pack years smoking | 1.68 | 0.3 | 9536 | 80 |
| calculate number of pack years smoking | 1.19 | 0.7 | 7795 | 48 |
| calculation of pack years smoking | 1.83 | 1 | 293 | 87 |
| calculating pack years smoking | 1.33 | 0.1 | 3037 | 98 |
| pack year smoker calculator | 1.42 | 0.6 | 5902 | 74 |
