From: Case-crossover study to examine the change in postpartum risk of pulmonary embolism over time
Variable | n = 5,517,680a |
---|---|
Pre-term delivery | 12.8%b (n = 475,935) |
Maternal age >35 years | 14.4% (n = 798,074) |
Preeclampsia or eclampsia | 4.1% (n = 229,853) |
Morbid obesity (BMI ≥40 kg/m2) | 0.3% (n = 18,871) |
Cesarean section | 19.6% (n = 1,084,005) |
Postpartum hemorrhage | 3.6% (n = 201,338) |
Postpartum infection | 1.4% (n = 77,968) |
Birth weight <2.5 kg | 5.8%c (n = 266,174) |