Association of in vitro fertilization with severe maternal morbidity in low-risk patients without comorbidities
To determine whether an association exists between in vitro fertilization (IVF) and severe maternal morbidity among low-risk pregnant patients. Retrospective cohort study. Low-risk pregnant patients who delivered between January 2019 and December 2022. Low-risk was defined as having an obstetric com...
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Published in | Fertility and sterility Vol. 123; no. 2; pp. 262 - 269 |
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Main Authors | , , , , , , |
Format | Journal Article |
Language | English |
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United States
Elsevier Inc
01.02.2025
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Online Access | Get full text |
ISSN | 0015-0282 1556-5653 1556-5653 |
DOI | 10.1016/j.fertnstert.2024.09.015 |
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Abstract | To determine whether an association exists between in vitro fertilization (IVF) and severe maternal morbidity among low-risk pregnant patients.
Retrospective cohort study.
Low-risk pregnant patients who delivered between January 2019 and December 2022. Low-risk was defined as having an obstetric comorbidity index score of 0.
In vitro fertilization.
The primary outcome (dependent variable) was any severe maternal morbidity. The secondary outcome was the need for a cesarean delivery. A modified Poisson regression with robust error variance was used to model the probability of severe maternal morbidity as a function of IVF. Risk ratios and their associated 95% confidence intervals (CIs) were computed. An α value of 0.05 was considered statistically significant.
A total of 39,668 pregnancies were included for analysis, and 454 (1.1%) were conceived by IVF. The overall severe maternal morbidity rate was 2.4% (n = 949), with the most common indicator being blood transfusion. The overall cesarean delivery rate was 18.8% (n = 7,459). On modified Poisson regression, IVF-conceived pregnancies were associated with 2.56 times the risk of severe maternal morbidity (95% CI, 1.73–3.79) and 1.54 times the risk of having a cesarean delivery (95% CI, 1.37–1.74) compared with non-IVF pregnancies.
In vitro fertilization is associated with higher rates of severe maternal morbidity, primarily the need for a blood transfusion, and cesarean delivery in low-risk pregnancies without major comorbidities. Recognizing this association allows healthcare providers to implement proactive measures for better monitoring and tailored postpartum care.
Asociación Entre La Fecundación in Vitro Y Morbilidad Materna Severa en Pacientes de Bajo Riesgo Sin Comorbilidades
Determinar si existe asociación entre la fecundación in vitro (FIV) y la morbilidad materna severa en pacientes gestantes de bajo riesgo.
Estudio retrospectivo de cohortes.
Sistema sanitario universitario.
Pacientes gestantes de bajo riesgo que dieron a luz entre junio de 2019 y diciembre de 2022. Se definió bajo riesgo cuando la puntuación del índice de comorbilidad obstétrico era de 0.
Fecundación in vitro.
El resultado principal (variable dependiente) fue cualquier morbilidad materna severa. El objetivo secundario fue la necesidad de nacimiento por cesárea. El modelo utilizado para calcular la probabilidad de morbilidad materna grave en función de la FIV fue una regresión de Poisson modificada con varianza de error robusta. Se calcularon los coeficientes de riesgo y sus intervalos de confianza del 95% asociados (IC). Se consideró estadísticamente significativo un valor de α de 0.05.
Se incluyeron para análisis un total de 39,668 embarazos y 454 (1%) fueron concebidos mediante FIV. La tasa de morbilidad materna grave conjunta fue del 2.4% (n=949), siendo el indicador más común la transfusión sanguínea. La tasa de parto por cesárea conjunta fue del 18.8% (n=7,459). En la regresión de Poisson modificada, los embarazos concebidos por FIV se asociaron con un riesgo 2,56% mayor de morbilidad materna grave (CI 95%, 1.73-3.79) y 1,54 veces el riesgo de parto por cesárea (CI 95%, 1.37-1.74) comparados con los embarazos sin FIV.
La FIV se asocia con mayores tasas de morbilidad materna grave, principalmente la necesidad de una transfusión sanguínea y parto por cesárea) en embarazos de bajo riesgo sin comorbilidades mayores. Reconocer esta situación permite a los profesionales sanitarios implementar medidas proactivas para un mejor seguimiento y atención personalizada. |
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AbstractList | To determine whether an association exists between in vitro fertilization (IVF) and severe maternal morbidity among low-risk pregnant patients.
Retrospective cohort study.
Low-risk pregnant patients who delivered between January 2019 and December 2022. Low-risk was defined as having an obstetric comorbidity index score of 0.
In vitro fertilization.
The primary outcome (dependent variable) was any severe maternal morbidity. The secondary outcome was the need for a cesarean delivery. A modified Poisson regression with robust error variance was used to model the probability of severe maternal morbidity as a function of IVF. Risk ratios and their associated 95% confidence intervals (CIs) were computed. An α value of 0.05 was considered statistically significant.
A total of 39,668 pregnancies were included for analysis, and 454 (1.1%) were conceived by IVF. The overall severe maternal morbidity rate was 2.4% (n = 949), with the most common indicator being blood transfusion. The overall cesarean delivery rate was 18.8% (n = 7,459). On modified Poisson regression, IVF-conceived pregnancies were associated with 2.56 times the risk of severe maternal morbidity (95% CI, 1.73-3.79) and 1.54 times the risk of having a cesarean delivery (95% CI, 1.37-1.74) compared with non-IVF pregnancies.
In vitro fertilization is associated with higher rates of severe maternal morbidity, primarily the need for a blood transfusion, and cesarean delivery in low-risk pregnancies without major comorbidities. Recognizing this association allows healthcare providers to implement proactive measures for better monitoring and tailored postpartum care. To determine whether an association exists between in vitro fertilization (IVF) and severe maternal morbidity among low-risk pregnant patients. Retrospective cohort study. Low-risk pregnant patients who delivered between January 2019 and December 2022. Low-risk was defined as having an obstetric comorbidity index score of 0. In vitro fertilization. The primary outcome (dependent variable) was any severe maternal morbidity. The secondary outcome was the need for a cesarean delivery. A modified Poisson regression with robust error variance was used to model the probability of severe maternal morbidity as a function of IVF. Risk ratios and their associated 95% confidence intervals (CIs) were computed. An α value of 0.05 was considered statistically significant. A total of 39,668 pregnancies were included for analysis, and 454 (1.1%) were conceived by IVF. The overall severe maternal morbidity rate was 2.4% (n = 949), with the most common indicator being blood transfusion. The overall cesarean delivery rate was 18.8% (n = 7,459). On modified Poisson regression, IVF-conceived pregnancies were associated with 2.56 times the risk of severe maternal morbidity (95% CI, 1.73–3.79) and 1.54 times the risk of having a cesarean delivery (95% CI, 1.37–1.74) compared with non-IVF pregnancies. In vitro fertilization is associated with higher rates of severe maternal morbidity, primarily the need for a blood transfusion, and cesarean delivery in low-risk pregnancies without major comorbidities. Recognizing this association allows healthcare providers to implement proactive measures for better monitoring and tailored postpartum care. Asociación Entre La Fecundación in Vitro Y Morbilidad Materna Severa en Pacientes de Bajo Riesgo Sin Comorbilidades Determinar si existe asociación entre la fecundación in vitro (FIV) y la morbilidad materna severa en pacientes gestantes de bajo riesgo. Estudio retrospectivo de cohortes. Sistema sanitario universitario. Pacientes gestantes de bajo riesgo que dieron a luz entre junio de 2019 y diciembre de 2022. Se definió bajo riesgo cuando la puntuación del índice de comorbilidad obstétrico era de 0. Fecundación in vitro. El resultado principal (variable dependiente) fue cualquier morbilidad materna severa. El objetivo secundario fue la necesidad de nacimiento por cesárea. El modelo utilizado para calcular la probabilidad de morbilidad materna grave en función de la FIV fue una regresión de Poisson modificada con varianza de error robusta. Se calcularon los coeficientes de riesgo y sus intervalos de confianza del 95% asociados (IC). Se consideró estadísticamente significativo un valor de α de 0.05. Se incluyeron para análisis un total de 39,668 embarazos y 454 (1%) fueron concebidos mediante FIV. La tasa de morbilidad materna grave conjunta fue del 2.4% (n=949), siendo el indicador más común la transfusión sanguínea. La tasa de parto por cesárea conjunta fue del 18.8% (n=7,459). En la regresión de Poisson modificada, los embarazos concebidos por FIV se asociaron con un riesgo 2,56% mayor de morbilidad materna grave (CI 95%, 1.73-3.79) y 1,54 veces el riesgo de parto por cesárea (CI 95%, 1.37-1.74) comparados con los embarazos sin FIV. La FIV se asocia con mayores tasas de morbilidad materna grave, principalmente la necesidad de una transfusión sanguínea y parto por cesárea) en embarazos de bajo riesgo sin comorbilidades mayores. Reconocer esta situación permite a los profesionales sanitarios implementar medidas proactivas para un mejor seguimiento y atención personalizada. To determine whether an association exists between in vitro fertilization (IVF) and severe maternal morbidity among low-risk pregnant patients.OBJECTIVETo determine whether an association exists between in vitro fertilization (IVF) and severe maternal morbidity among low-risk pregnant patients.Retrospective cohort study.DESIGNRetrospective cohort study.Academic healthcare system.SETTINGAcademic healthcare system.Low-risk pregnant patients who delivered between January 2019 and December 2022. Low-risk was defined as having an obstetric comorbidity index score of 0.PATIENT(S)Low-risk pregnant patients who delivered between January 2019 and December 2022. Low-risk was defined as having an obstetric comorbidity index score of 0.In vitro fertilization.INTERVENTION(S)In vitro fertilization.The primary outcome (dependent variable) was any severe maternal morbidity. The secondary outcome was the need for a cesarean delivery. A modified Poisson regression with robust error variance was used to model the probability of severe maternal morbidity as a function of IVF. Risk ratios and their associated 95% confidence intervals (CIs) were computed. An α value of 0.05 was considered statistically significant.MAIN OUTCOME MEASURE(S)The primary outcome (dependent variable) was any severe maternal morbidity. The secondary outcome was the need for a cesarean delivery. A modified Poisson regression with robust error variance was used to model the probability of severe maternal morbidity as a function of IVF. Risk ratios and their associated 95% confidence intervals (CIs) were computed. An α value of 0.05 was considered statistically significant.A total of 39,668 pregnancies were included for analysis, and 454 (1.1%) were conceived by IVF. The overall severe maternal morbidity rate was 2.4% (n = 949), with the most common indicator being blood transfusion. The overall cesarean delivery rate was 18.8% (n = 7,459). On modified Poisson regression, IVF-conceived pregnancies were associated with 2.56 times the risk of severe maternal morbidity (95% CI, 1.73-3.79) and 1.54 times the risk of having a cesarean delivery (95% CI, 1.37-1.74) compared with non-IVF pregnancies.RESULT(S)A total of 39,668 pregnancies were included for analysis, and 454 (1.1%) were conceived by IVF. The overall severe maternal morbidity rate was 2.4% (n = 949), with the most common indicator being blood transfusion. The overall cesarean delivery rate was 18.8% (n = 7,459). On modified Poisson regression, IVF-conceived pregnancies were associated with 2.56 times the risk of severe maternal morbidity (95% CI, 1.73-3.79) and 1.54 times the risk of having a cesarean delivery (95% CI, 1.37-1.74) compared with non-IVF pregnancies.In vitro fertilization is associated with higher rates of severe maternal morbidity, primarily the need for a blood transfusion, and cesarean delivery in low-risk pregnancies without major comorbidities. Recognizing this association allows healthcare providers to implement proactive measures for better monitoring and tailored postpartum care.CONCLUSION(S)In vitro fertilization is associated with higher rates of severe maternal morbidity, primarily the need for a blood transfusion, and cesarean delivery in low-risk pregnancies without major comorbidities. Recognizing this association allows healthcare providers to implement proactive measures for better monitoring and tailored postpartum care. |
Author | Kouba, Insaf Alvarez, Alejandro Jackson, Frank I. Blitz, Matthew J. Solmonovich, Rachel Goldman, Randi H. San Roman, Gabriel |
Author_xml | – sequence: 1 givenname: Rachel orcidid: 0009-0007-5063-5345 surname: Solmonovich fullname: Solmonovich, Rachel email: rsolmonovich@northwell.edu organization: Northwell, New Hyde Park, New York – sequence: 2 givenname: Insaf surname: Kouba fullname: Kouba, Insaf organization: Northwell, New Hyde Park, New York – sequence: 3 givenname: Frank I. surname: Jackson fullname: Jackson, Frank I. organization: Northwell, New Hyde Park, New York – sequence: 4 givenname: Alejandro surname: Alvarez fullname: Alvarez, Alejandro organization: Biostatistics Unit, Office of Academic Affairs, Northwell Health, New Hyde Park, New York – sequence: 5 givenname: Randi H. surname: Goldman fullname: Goldman, Randi H. organization: Northwell, New Hyde Park, New York – sequence: 6 givenname: Gabriel surname: San Roman fullname: San Roman, Gabriel organization: Northwell, New Hyde Park, New York – sequence: 7 givenname: Matthew J. surname: Blitz fullname: Blitz, Matthew J. organization: Northwell, New Hyde Park, New York |
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Cites_doi | 10.1097/01.AOG.0000183593.24583.7c 10.1016/j.fertnstert.2009.05.091 10.1097/AOG.0000000000004057 10.1016/j.fertnstert.2008.07.1407 10.1111/1471-0528.15668 10.1016/j.ajog.2019.06.025 10.1016/S0140-6736(18)31930-5 10.1097/AOG.0b013e3182a603bb 10.1186/s12884-021-03711-x 10.1097/01.AOG.0000114989.84822.51 10.1001/jamanetworkopen.2023.38604 10.1097/AOG.0000000000001643 10.1111/j.1523-536X.2010.00405.x 10.1055/a-2223-3602 10.1097/01.AOG.0000259316.04136.30 10.1371/journal.pone.0275857 10.1186/s40738-015-0013-2 10.1097/AOG.0000000000001292 10.1016/j.jogc.2022.05.012 10.1016/j.ajogmf.2021.100474 10.1016/j.fertnstert.2018.04.032 10.1097/AOG.0b013e31826d60c5 |
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Keywords | obstetric comorbidity index Assisted reproductive technology pregnancy complications cesarean delivery in vitro fertilization |
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SubjectTerms | Adult Assisted reproductive technology cesarean delivery Cesarean Section - statistics & numerical data Comorbidity Female Fertilization in Vitro - adverse effects Fertilization in Vitro - trends Humans Infertility - diagnosis Infertility - epidemiology Infertility - physiopathology Infertility - therapy in vitro fertilization Morbidity obstetric comorbidity index Pregnancy pregnancy complications Pregnancy Complications - diagnosis Pregnancy Complications - epidemiology Retrospective Studies Risk Assessment Risk Factors Severity of Illness Index |
Title | Association of in vitro fertilization with severe maternal morbidity in low-risk patients without comorbidities |
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