Body mass index impacts ectopic pregnancy during in vitro fertilization: an analysis of 42,362 clinical pregnancy cycles

Purpose This large, single-center, retrospective cohort study was aimed to explore the effect of female body mass index (BMI) on ectopic pregnancy (EP) following fresh and frozen-thawed embryo transfers (ET). Methods A total of 27,600 pregnancies after fresh ET and 14,762 pregnancies after frozen-th...

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Published inReproductive biology and endocrinology Vol. 21; no. 1; pp. 1 - 10
Main Authors Ge, Xiaofei, Wang, Keyan, Sun, Yingpu, Bu, Zhiqin
Format Journal Article
LanguageEnglish
Published London BioMed Central Ltd 31.10.2023
BioMed Central
BMC
Subjects
Body mass index
Body weight
Complications and side effects
Ectopic pregnancy
Embryo transfer
Embryos
Estrogens
Female BMI
Fertilization in vitro
Health aspects
In vitro fertilization
Infertility
IVF/ICSI
Normal distribution
Obesity
Ovaries
Overweight
Pregnancy complications
Pregnancy, Ectopic
Pregnant women
Prevention
Reproductive health
Risk factors
Statistical analysis
Ultrasonic imaging
Underweight
China
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Abstract Purpose This large, single-center, retrospective cohort study was aimed to explore the effect of female body mass index (BMI) on ectopic pregnancy (EP) following fresh and frozen-thawed embryo transfers (ET). Methods A total of 27,600 pregnancies after fresh ET and 14,762 pregnancies after frozen-thawed ET were included between January 2010 to June 2022. Women were divided into three groups based on BMI according to the Working Group on Obesity in China (WGOC), International Life Sciences Institute (ILSI): underweight (BMI < 18.5 kg/m.sup.2), normal weight (BMI, 18.5-23.9 kg/m.sup.2), and overweight or obesity ([greater than or equal to] 24 kg/m.sup.2). Compare EP rates among BMI categories in fresh and frozen-thawed ET cycles respectively. Multivariate logistic regression analyses were used to investigate the association between female BMI and EP. Results The overall EP rates in fresh, and frozen thawed transfer cycles were 2.43% (672/27,600) and 2.82% (417/14,762), respectively. In fresh ET cycles, underweight women yielded a significantly higher EP rate than those with normal and excess weight (3.29% vs. 2.29% vs. 2.54%, P = 0.029). But EP rates did not differ among the three BMI groups (2.72% vs. 2.76% vs. 2.96%, P = 0.782) in frozen-thawed ET cycles. In fresh ET cycles, after adjusting for potential confounding factors, no significant association was found between female BMI and EP occurrence (adjusted OR: 0.98, 95% CI 0.70-1.37, P = 0.894, for BMI 18.5-23.9 kg/m.sup.2; adjusted OR: 0.89, 95% CI 0.75-1.06, P = 0.205, for BMI [greater than or equal to] 24 kg/m.sup.2. Reference = BMI < 18.5 kg/m.sup.2). Conclusion(s) Female BMI did not affect the occurrence of ectopic pregnancy in either fresh or frozen-thawed embryo transfer cycles. Keywords: Female BMI, Ectopic pregnancy, IVF/ICSI, Embryo transfer
AbstractList This large, single-center, retrospective cohort study was aimed to explore the effect of female body mass index (BMI) on ectopic pregnancy (EP) following fresh and frozen-thawed embryo transfers (ET).PURPOSEThis large, single-center, retrospective cohort study was aimed to explore the effect of female body mass index (BMI) on ectopic pregnancy (EP) following fresh and frozen-thawed embryo transfers (ET).A total of 27,600 pregnancies after fresh ET and 14,762 pregnancies after frozen-thawed ET were included between January 2010 to June 2022. Women were divided into three groups based on BMI according to the Working Group on Obesity in China (WGOC), International Life Sciences Institute (ILSI): underweight (BMI < 18.5 kg/m2), normal weight (BMI, 18.5-23.9 kg/m2), and overweight or obesity (≥ 24 kg/m2). Compare EP rates among BMI categories in fresh and frozen-thawed ET cycles respectively. Multivariate logistic regression analyses were used to investigate the association between female BMI and EP.METHODSA total of 27,600 pregnancies after fresh ET and 14,762 pregnancies after frozen-thawed ET were included between January 2010 to June 2022. Women were divided into three groups based on BMI according to the Working Group on Obesity in China (WGOC), International Life Sciences Institute (ILSI): underweight (BMI < 18.5 kg/m2), normal weight (BMI, 18.5-23.9 kg/m2), and overweight or obesity (≥ 24 kg/m2). Compare EP rates among BMI categories in fresh and frozen-thawed ET cycles respectively. Multivariate logistic regression analyses were used to investigate the association between female BMI and EP.The overall EP rates in fresh, and frozen thawed transfer cycles were 2.43% (672/27,600) and 2.82% (417/14,762), respectively. In fresh ET cycles, underweight women yielded a significantly higher EP rate than those with normal and excess weight (3.29% vs. 2.29% vs. 2.54%, P = 0.029). But EP rates did not differ among the three BMI groups (2.72% vs. 2.76% vs. 2.96%, P = 0.782) in frozen-thawed ET cycles. In fresh ET cycles, after adjusting for potential confounding factors, no significant association was found between female BMI and EP occurrence (adjusted OR: 0.98, 95% CI 0.70-1.37, P = 0.894, for BMI 18.5-23.9 kg/m2; adjusted OR: 0.89, 95% CI 0.75-1.06, P = 0.205, for BMI ≥ 24 kg/m2. Reference = BMI < 18.5 kg/m2).RESULTSThe overall EP rates in fresh, and frozen thawed transfer cycles were 2.43% (672/27,600) and 2.82% (417/14,762), respectively. In fresh ET cycles, underweight women yielded a significantly higher EP rate than those with normal and excess weight (3.29% vs. 2.29% vs. 2.54%, P = 0.029). But EP rates did not differ among the three BMI groups (2.72% vs. 2.76% vs. 2.96%, P = 0.782) in frozen-thawed ET cycles. In fresh ET cycles, after adjusting for potential confounding factors, no significant association was found between female BMI and EP occurrence (adjusted OR: 0.98, 95% CI 0.70-1.37, P = 0.894, for BMI 18.5-23.9 kg/m2; adjusted OR: 0.89, 95% CI 0.75-1.06, P = 0.205, for BMI ≥ 24 kg/m2. Reference = BMI < 18.5 kg/m2).Female BMI did not affect the occurrence of ectopic pregnancy in either fresh or frozen-thawed embryo transfer cycles.CONCLUSION(S)Female BMI did not affect the occurrence of ectopic pregnancy in either fresh or frozen-thawed embryo transfer cycles.
Purpose This large, single-center, retrospective cohort study was aimed to explore the effect of female body mass index (BMI) on ectopic pregnancy (EP) following fresh and frozen-thawed embryo transfers (ET). Methods A total of 27,600 pregnancies after fresh ET and 14,762 pregnancies after frozen-thawed ET were included between January 2010 to June 2022. Women were divided into three groups based on BMI according to the Working Group on Obesity in China (WGOC), International Life Sciences Institute (ILSI): underweight (BMI < 18.5 kg/m.sup.2), normal weight (BMI, 18.5-23.9 kg/m.sup.2), and overweight or obesity ([greater than or equal to] 24 kg/m.sup.2). Compare EP rates among BMI categories in fresh and frozen-thawed ET cycles respectively. Multivariate logistic regression analyses were used to investigate the association between female BMI and EP. Results The overall EP rates in fresh, and frozen thawed transfer cycles were 2.43% (672/27,600) and 2.82% (417/14,762), respectively. In fresh ET cycles, underweight women yielded a significantly higher EP rate than those with normal and excess weight (3.29% vs. 2.29% vs. 2.54%, P = 0.029). But EP rates did not differ among the three BMI groups (2.72% vs. 2.76% vs. 2.96%, P = 0.782) in frozen-thawed ET cycles. In fresh ET cycles, after adjusting for potential confounding factors, no significant association was found between female BMI and EP occurrence (adjusted OR: 0.98, 95% CI 0.70-1.37, P = 0.894, for BMI 18.5-23.9 kg/m.sup.2; adjusted OR: 0.89, 95% CI 0.75-1.06, P = 0.205, for BMI [greater than or equal to] 24 kg/m.sup.2. Reference = BMI < 18.5 kg/m.sup.2). Conclusion(s) Female BMI did not affect the occurrence of ectopic pregnancy in either fresh or frozen-thawed embryo transfer cycles. Keywords: Female BMI, Ectopic pregnancy, IVF/ICSI, Embryo transfer
This large, single-center, retrospective cohort study was aimed to explore the effect of female body mass index (BMI) on ectopic pregnancy (EP) following fresh and frozen-thawed embryo transfers (ET). A total of 27,600 pregnancies after fresh ET and 14,762 pregnancies after frozen-thawed ET were included between January 2010 to June 2022. Women were divided into three groups based on BMI according to the Working Group on Obesity in China (WGOC), International Life Sciences Institute (ILSI): underweight (BMI < 18.5 kg/m.sup.2), normal weight (BMI, 18.5-23.9 kg/m.sup.2), and overweight or obesity ([greater than or equal to] 24 kg/m.sup.2). Compare EP rates among BMI categories in fresh and frozen-thawed ET cycles respectively. Multivariate logistic regression analyses were used to investigate the association between female BMI and EP. The overall EP rates in fresh, and frozen thawed transfer cycles were 2.43% (672/27,600) and 2.82% (417/14,762), respectively. In fresh ET cycles, underweight women yielded a significantly higher EP rate than those with normal and excess weight (3.29% vs. 2.29% vs. 2.54%, P = 0.029). But EP rates did not differ among the three BMI groups (2.72% vs. 2.76% vs. 2.96%, P = 0.782) in frozen-thawed ET cycles. In fresh ET cycles, after adjusting for potential confounding factors, no significant association was found between female BMI and EP occurrence (adjusted OR: 0.98, 95% CI 0.70-1.37, P = 0.894, for BMI 18.5-23.9 kg/m.sup.2; adjusted OR: 0.89, 95% CI 0.75-1.06, P = 0.205, for BMI [greater than or equal to] 24 kg/m.sup.2. Reference = BMI < 18.5 kg/m.sup.2). Female BMI did not affect the occurrence of ectopic pregnancy in either fresh or frozen-thawed embryo transfer cycles.
PurposeThis large, single-center, retrospective cohort study was aimed to explore the effect of female body mass index (BMI) on ectopic pregnancy (EP) following fresh and frozen-thawed embryo transfers (ET).MethodsA total of 27,600 pregnancies after fresh ET and 14,762 pregnancies after frozen-thawed ET were included between January 2010 to June 2022. Women were divided into three groups based on BMI according to the Working Group on Obesity in China (WGOC), International Life Sciences Institute (ILSI): underweight (BMI < 18.5 kg/m2), normal weight (BMI, 18.5–23.9 kg/m2), and overweight or obesity (≥ 24 kg/m2). Compare EP rates among BMI categories in fresh and frozen-thawed ET cycles respectively. Multivariate logistic regression analyses were used to investigate the association between female BMI and EP.ResultsThe overall EP rates in fresh, and frozen thawed transfer cycles were 2.43% (672/27,600) and 2.82% (417/14,762), respectively. In fresh ET cycles, underweight women yielded a significantly higher EP rate than those with normal and excess weight (3.29% vs. 2.29% vs. 2.54%, P = 0.029). But EP rates did not differ among the three BMI groups (2.72% vs. 2.76% vs. 2.96%, P = 0.782) in frozen-thawed ET cycles. In fresh ET cycles, after adjusting for potential confounding factors, no significant association was found between female BMI and EP occurrence (adjusted OR: 0.98, 95% CI 0.70–1.37, P = 0.894, for BMI 18.5–23.9 kg/m2; adjusted OR: 0.89, 95% CI 0.75–1.06, P = 0.205, for BMI ≥ 24 kg/m2. Reference = BMI < 18.5 kg/m2).Conclusion(s)Female BMI did not affect the occurrence of ectopic pregnancy in either fresh or frozen-thawed embryo transfer cycles.
Abstract Purpose This large, single-center, retrospective cohort study was aimed to explore the effect of female body mass index (BMI) on ectopic pregnancy (EP) following fresh and frozen-thawed embryo transfers (ET). Methods A total of 27,600 pregnancies after fresh ET and 14,762 pregnancies after frozen-thawed ET were included between January 2010 to June 2022. Women were divided into three groups based on BMI according to the Working Group on Obesity in China (WGOC), International Life Sciences Institute (ILSI): underweight (BMI < 18.5 kg/m2), normal weight (BMI, 18.5–23.9 kg/m2), and overweight or obesity (≥ 24 kg/m2). Compare EP rates among BMI categories in fresh and frozen-thawed ET cycles respectively. Multivariate logistic regression analyses were used to investigate the association between female BMI and EP. Results The overall EP rates in fresh, and frozen thawed transfer cycles were 2.43% (672/27,600) and 2.82% (417/14,762), respectively. In fresh ET cycles, underweight women yielded a significantly higher EP rate than those with normal and excess weight (3.29% vs. 2.29% vs. 2.54%, P = 0.029). But EP rates did not differ among the three BMI groups (2.72% vs. 2.76% vs. 2.96%, P = 0.782) in frozen-thawed ET cycles. In fresh ET cycles, after adjusting for potential confounding factors, no significant association was found between female BMI and EP occurrence (adjusted OR: 0.98, 95% CI 0.70–1.37, P = 0.894, for BMI 18.5–23.9 kg/m2; adjusted OR: 0.89, 95% CI 0.75–1.06, P = 0.205, for BMI ≥ 24 kg/m2. Reference = BMI < 18.5 kg/m2). Conclusion(s) Female BMI did not affect the occurrence of ectopic pregnancy in either fresh or frozen-thawed embryo transfer cycles.
ArticleNumber 105
Audience Academic
Author Bu, Zhiqin
Ge, Xiaofei
Sun, Yingpu
Wang, Keyan
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CitedBy_id crossref_primary_10_1038_s41572_024_00579_x
crossref_primary_10_1186_s12884_025_07342_4
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Snippet Purpose This large, single-center, retrospective cohort study was aimed to explore the effect of female body mass index (BMI) on ectopic pregnancy (EP)...
This large, single-center, retrospective cohort study was aimed to explore the effect of female body mass index (BMI) on ectopic pregnancy (EP) following fresh...
PurposeThis large, single-center, retrospective cohort study was aimed to explore the effect of female body mass index (BMI) on ectopic pregnancy (EP)...
Abstract Purpose This large, single-center, retrospective cohort study was aimed to explore the effect of female body mass index (BMI) on ectopic pregnancy...
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SubjectTerms Body mass index
Body weight
Complications and side effects
Ectopic pregnancy
Embryo transfer
Embryos
Estrogens
Female BMI
Fertilization in vitro
Health aspects
In vitro fertilization
Infertility
IVF/ICSI
Normal distribution
Obesity
Ovaries
Overweight
Pregnancy complications
Pregnancy, Ectopic
Pregnant women
Prevention
Reproductive health
Risk factors
Statistical analysis
Ultrasonic imaging
Underweight
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Title Body mass index impacts ectopic pregnancy during in vitro fertilization: an analysis of 42,362 clinical pregnancy cycles
URI https://www.proquest.com/docview/2890106862
https://www.proquest.com/docview/2885202499
https://pubmed.ncbi.nlm.nih.gov/PMC10617086
https://doaj.org/article/bf03a747922841b1b2544960c3bfc9fd
Volume 21
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