Risk factors and recurrence of cause-specific postpartum hemorrhage: A population-based study.
<h4>Objective</h4>To explore risk profiles of the different types of postpartum hemorrhage (PPH >500ml or severe PPH >1500ml) and their recurrence risks in a subsequent delivery.<h4>Methods</h4>With data from The Medical Birth Registry of Norway and Statistics Norway we...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Public Library of Science (PLoS)
2022-01-01
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| Series: | PLoS ONE |
| Online Access: | https://doi.org/10.1371/journal.pone.0275879 |
| _version_ | 1798029040855023616 |
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| author | Lorentz Erland Linde Svein Rasmussen Dag Moster Jörg Kessler Elham Baghestan Mika Gissler Cathrine Ebbing |
| author_facet | Lorentz Erland Linde Svein Rasmussen Dag Moster Jörg Kessler Elham Baghestan Mika Gissler Cathrine Ebbing |
| author_sort | Lorentz Erland Linde |
| collection | DOAJ |
| description | <h4>Objective</h4>To explore risk profiles of the different types of postpartum hemorrhage (PPH >500ml or severe PPH >1500ml) and their recurrence risks in a subsequent delivery.<h4>Methods</h4>With data from The Medical Birth Registry of Norway and Statistics Norway we performed a population-based cohort study including all singleton deliveries in Norway from 1967-2017. Multilevel logistic regression was used to calculate odds ratio (OR), with 95% confidence interval (CI), with different PPH types (PPH >500ml or PPH >1500ml (severe PPH) combined with retained placenta, uterine atony, obstetric trauma, dystocia, or undefined cause) as outcomes.<h4>Result</h4>We identified 277 746 PPH cases of a total of 3 003 025 births (9.3%) from 1967 to 2017. Retained placenta (and/or membranes) was most often registered as severe PPH (29.3%). Maternal, fetal, and obstetric characteristics showed different associations with the PPH types. Male sex of the neonate was associated with reduced risk of PPH. This effect was strongest on PPH due to retained placenta (adjusted OR, (aOR): 0.80, 95% CI 0.78-0.82), atony (aOR 0.92, 95% CI: 0.90-0.93) and PPH with undefined cause (aOR 0.96, 95% CI: 0.95-0.97). Previous cesarean section showed a strong association with PPH due to dystocia (aOR of 13.2, 95% CI: 12.5-13.9). Recurrence risks were highest for the same type: PPH associated with dystocia (aOR: 6.8, 95% CI: 6.3-7.4), retained placenta and/or membranes (aOR: 5.9, 95% CI: 5.5-6.4), atony (aOR: 4.0, 95% CI: 3.8-4.2), obstetric trauma (aOR: 3.9, 95% CI: 3.5-4.3) and PPH of undefined cause (aOR: 2.2, 95% CI: 2.1-2.3).<h4>Conclusion</h4>Maternal, fetal and obstetric characteristics had differential effects on types of PPH. Recurrence differed considerably between PPH types. Retained placenta was most frequently registered with severe PPH, and showed strongest effect of sex; delivery of a boy was associated with lower risk of PPH. Previous cesarean increased the risk of PPH due to dystocia. |
| first_indexed | 2024-04-11T19:17:57Z |
| format | Article |
| id | doaj.art-8856724e618245dcace51d0e8c81d62e |
| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-04-11T19:17:57Z |
| publishDate | 2022-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj.art-8856724e618245dcace51d0e8c81d62e2022-12-22T04:07:23ZengPublic Library of Science (PLoS)PLoS ONE1932-62032022-01-011710e027587910.1371/journal.pone.0275879Risk factors and recurrence of cause-specific postpartum hemorrhage: A population-based study.Lorentz Erland LindeSvein RasmussenDag MosterJörg KesslerElham BaghestanMika GisslerCathrine Ebbing<h4>Objective</h4>To explore risk profiles of the different types of postpartum hemorrhage (PPH >500ml or severe PPH >1500ml) and their recurrence risks in a subsequent delivery.<h4>Methods</h4>With data from The Medical Birth Registry of Norway and Statistics Norway we performed a population-based cohort study including all singleton deliveries in Norway from 1967-2017. Multilevel logistic regression was used to calculate odds ratio (OR), with 95% confidence interval (CI), with different PPH types (PPH >500ml or PPH >1500ml (severe PPH) combined with retained placenta, uterine atony, obstetric trauma, dystocia, or undefined cause) as outcomes.<h4>Result</h4>We identified 277 746 PPH cases of a total of 3 003 025 births (9.3%) from 1967 to 2017. Retained placenta (and/or membranes) was most often registered as severe PPH (29.3%). Maternal, fetal, and obstetric characteristics showed different associations with the PPH types. Male sex of the neonate was associated with reduced risk of PPH. This effect was strongest on PPH due to retained placenta (adjusted OR, (aOR): 0.80, 95% CI 0.78-0.82), atony (aOR 0.92, 95% CI: 0.90-0.93) and PPH with undefined cause (aOR 0.96, 95% CI: 0.95-0.97). Previous cesarean section showed a strong association with PPH due to dystocia (aOR of 13.2, 95% CI: 12.5-13.9). Recurrence risks were highest for the same type: PPH associated with dystocia (aOR: 6.8, 95% CI: 6.3-7.4), retained placenta and/or membranes (aOR: 5.9, 95% CI: 5.5-6.4), atony (aOR: 4.0, 95% CI: 3.8-4.2), obstetric trauma (aOR: 3.9, 95% CI: 3.5-4.3) and PPH of undefined cause (aOR: 2.2, 95% CI: 2.1-2.3).<h4>Conclusion</h4>Maternal, fetal and obstetric characteristics had differential effects on types of PPH. Recurrence differed considerably between PPH types. Retained placenta was most frequently registered with severe PPH, and showed strongest effect of sex; delivery of a boy was associated with lower risk of PPH. Previous cesarean increased the risk of PPH due to dystocia.https://doi.org/10.1371/journal.pone.0275879 |
| spellingShingle | Lorentz Erland Linde Svein Rasmussen Dag Moster Jörg Kessler Elham Baghestan Mika Gissler Cathrine Ebbing Risk factors and recurrence of cause-specific postpartum hemorrhage: A population-based study. PLoS ONE |
| title | Risk factors and recurrence of cause-specific postpartum hemorrhage: A population-based study. |
| title_full | Risk factors and recurrence of cause-specific postpartum hemorrhage: A population-based study. |
| title_fullStr | Risk factors and recurrence of cause-specific postpartum hemorrhage: A population-based study. |
| title_full_unstemmed | Risk factors and recurrence of cause-specific postpartum hemorrhage: A population-based study. |
| title_short | Risk factors and recurrence of cause-specific postpartum hemorrhage: A population-based study. |
| title_sort | risk factors and recurrence of cause specific postpartum hemorrhage a population based study |
| url | https://doi.org/10.1371/journal.pone.0275879 |
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