Table 2.
Pregnancy Outcomes of Participants Stratified by a Maternal History of Thyroid Cancer
| Women without a history of thyroid cancer (N = 2,269,051) | Women with a history of thyroid cancer (N = 7232) | p-Value | |
|---|---|---|---|
| Multiple gestations | 31,844 (1.40) | 144 (1.99) | <0.01 |
| Cesarean section | 826,138 (36.41) | 2842 (39.30) | <0.01 |
| Preterm birth | 68,333 (3.01) | 256 (3.54) | <0.01 |
| Neonatal sex—male | 1,168,492 (51.50) | 3721 (51.45) | 0.94 |
| Birth weight (kg) | 3.20 ± 0.47 | 3.21 ± 0.50 | 0.31 |
| LBW | 94,441 (4.16) | 332 (4.59) | 0.07 |
| LGA | 84,174 (3.71) | 308 (4.26) | 0.01 |
| Preeclampsia | 42,756 (1.88) | 180 (2.49) | <0.01 |
| PPH | 225,476 (9.94) | 872 (12.06) | <0.01 |
| Placental abruption | 7997 (0.35) | 31 (0.43) | 0.28 |
| Placenta previa | 24,440 (1.08) | 113 (1.56) | <0.01 |
| Stillbirth | 20,485/2,433,197 (0.84) | 69/7734 (0.89) | 0.65 |
Values are expressed as the mean (SD) or n (%).
LBW, low birth weight; LGA, large for gestational age; PPH, postpartum hemorrhage.