Cohort Pregnancy History | Total #pregnancies | Counts for each class | Mean age | Average #visits |
---|---|---|---|---|
P1 (1 month) | 168932 | Fullterm 155647 | 28.15 | 6.96 |
 |  | Preterm 13285 | 29.08 | 7.07 |
P2 (3 months) | 133704 | Fullterm 123968 | 28.04 | 5.16 |
 |  | Preterm 9736 | 28.87 | 5.27 |
P3 (6 months) | 77779 | Fullterm 73477 | 27.95 | 3.33 |
 |  | Preterm 4302 | 28.56 | 3.28 |