Table 4 Odds ratio (95% CI) of venous thromboembolism
VTE-1* | Incidence rate-1 | VTE-2* | Incidence rate-2 | Odds ratio (95% CI) | p-value |
|---|---|---|---|---|---|
In 2018 study | |||||
Antepartum DVT | 125/157 (79.6%) | Postpartum DVT | 32/157 (20.4%) | 3.91 (2.65–1.72) | < 0.0001 |
Postpartum PE | 36/56 (64.3%) | Antepartum PE | 20/56 (35.7%) | 1.18 (1.04–3.11) | 0.0440 |
Antepartum | |||||
Perioperative PE or VTE during pregnancy | 6/18 (33.3%) | Other PE or VTE during pregnancy | 14/133 (9.5%) | 4.75 (1.54–14.6) | 0.0108 |
Perioperative PE during pregnancy | 6/20 (30.0%) | Perioperative DVT during pregnancy | 11/125 (8.8%) | 4.44 (1.42–13.9) | 0.0150 |
Postpartum | |||||
PE after cesarean section | 26/67752 (0.038%) | DVT after cesarean section | 17/67752 (0.025%) | 1.53 (0.83–2.82) | 0.2220 |
DVT after cesarean section | 17/67752 (0.025%) | DVT after vaginal delivery | 15/229209 (0.0065%) | 3.82 (1.91–7.65) | 0.0002 |
PE after cesarean section | 26/67752 (0.038%) | PE after vaginal delivery | 10/229209 (0.0044%) | 7.86 (2.03–30.4) | 0.0020 |
In 1991–2000 studies | |||||
Antepartum DVT | 64/127 (50.4%) | Postpartum DVT | 63/127 (49.6%) | 1.03 (0.63–1.69) | 1.000 |
Postpartum PE | 59/76 (77.6%) | Antepartum PE | 17/76 (22.4%) | 3.47 (2.02–5.95) | < 0.0001 |
Postpartum | |||||
DVT after cesarean section | 35/87382 (0.040%) | DVT after vaginal delivery | 28/348702 (0.008%) | 4.99 (3.04–8.20) | < 0.0001 |
PE after cesarean section | 50/87382 (0.057%) | PE after vaginal delivery | 9/348702 (0.003%) | 22.2 (10.9–45.1) | < 0.0001 |