| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| maternal smoking and preterm birth | 0.6 | 0.7 | 560 | 49 |
| maternal smoking around birth | 1.5 | 0.8 | 9659 | 78 |
| maternal smoking during pregnancy | 0.59 | 0.1 | 649 | 41 |
| premature babies and smoking | 1.21 | 0.1 | 6924 | 7 |
| why does smoking cause premature birth | 0.19 | 0.4 | 5180 | 40 |
| smoking while pregnant birth defects | 1.71 | 1 | 8860 | 97 |
| neonatal effects of maternal smoking | 0.66 | 0.8 | 3656 | 56 |
| smoking mother during pregnancy | 0.77 | 0.5 | 5977 | 46 |
| smoking effects on pregnancy and the fetus | 1.06 | 0.4 | 4607 | 30 |
| smoking mom and pregnancy | 0.57 | 0.1 | 8438 | 53 |
| articles about smoking and pregnancy | 1.99 | 0.6 | 4821 | 37 |
| maternal tobacco use during pregnancy | 0.79 | 0.9 | 7401 | 11 |
| a fetus prenatally exposed to smoking | 0.8 | 0.8 | 4073 | 67 |
| mother smoking while pregnant | 1.33 | 0.4 | 4133 | 64 |
| smoking in pregnancy who | 1.96 | 0.4 | 8501 | 72 |
| smoking during pregnancy harms the fetus by | 0.36 | 0.1 | 577 | 85 |
| smoking during pregnancy cdc | 1.05 | 0.2 | 2210 | 39 |
| articles on smoking while pregnant | 1.94 | 0.7 | 2856 | 59 |
| smoking in early pregnancy | 0.76 | 0.5 | 3904 | 7 |
