Estimated fetal weight standards of the INTERGROWTH-21st project for the prediction of adverse outcomes : a systematic review with meta-analysis
OBJECTIVE: To systematically review and assess the risk of bias in the literature evaluating the performance of INTERGROWTH-21st estimated fetal weight (EFW) standards to predict maternal, fetal and neonatal adverse outcomes.
METHODS: Searches were performed in seven electronic databases (Scopus, Web of Science, Medline, Embase, Lilacs, Scielo and Google Scholar) using citation tools and keywords (intergrowth AND (standard OR reference OR formula OR model OR curve); all from 2014 to the last search on April 16th, 2021). We included full-text articles investigating the ability of INTERGROWTH-21st EFW standards to predict maternal, fetal or neonatal adverse outcomes in women with a singleton pregnancy who gave birth to infants with no congenital abnormalities. The study was registered on PROSPERO under the number CRD42020115462. Risk of bias was assessed with a customized instrument based on the CHARMS checklist and composed of 9 domains. Meta-analysis was performed using relative risk (RR [95%CI]) and summary ROC curves on outcomes reported by two or more methodologically homogeneous studies.
RESULTS: Sixteen studies evaluating fifteen different outcomes were selected. The risk of bias was high (>50% of studies with high risk) for two domains: blindness of assessment (81.3%) and calibration assessment (93.8%). Considering all the outcomes investigated, for 95% of the results, the specificity was above 73.0%, but the sensitivity was below 64.1%. Pooled results demonstrated a higher RR of neonatal small for gestational age (6.71 [5.51-8.17]), Apgar <7 at 5 min (2.17 [1.48-3.18]), and neonatal intensive care unit admission (2.22 [1.76-2.79]) for fetuses classified <10th percentile when compared to those classified above this limit. The limitation of the study is the absence of heterogeneity exploration or publication bias investigation, whereas no outcomes were evaluated by more than five studies.
CONCLUSIONS: The IG-21 EFW standard has low sensitivity and high specificity for adverse events of pregnancy. Classification <10th percentile identifies a high-risk group for developing maternal, fetal and neonatal adverse outcomes, especially neonatal small for gestational age, Apgar <7 at 5 min, and neonatal intensive care unit admission. Future studies should include blind assessment of outcomes, perform calibration analysis with continuous data, and evaluate alternative cutoff points.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:36 |
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| Enthalten in: |
The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians - 36(2023), 2 vom: 05. Dez., Seite 2230510 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Rebelo, Fernanda [VerfasserIn] |
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| Links: |
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| Themen: |
Adverse fetal outcomes |
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| Anmerkungen: |
Date Completed 07.07.2023 Date Revised 18.07.2023 published: Print Citation Status MEDLINE |
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| doi: |
10.1080/14767058.2023.2230510 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM359092748 |
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| 100 | 1 | |a Rebelo, Fernanda |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Estimated fetal weight standards of the INTERGROWTH-21st project for the prediction of adverse outcomes |b a systematic review with meta-analysis |
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| 500 | |a Date Revised 18.07.2023 | ||
| 500 | |a published: Print | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a OBJECTIVE: To systematically review and assess the risk of bias in the literature evaluating the performance of INTERGROWTH-21st estimated fetal weight (EFW) standards to predict maternal, fetal and neonatal adverse outcomes | ||
| 520 | |a METHODS: Searches were performed in seven electronic databases (Scopus, Web of Science, Medline, Embase, Lilacs, Scielo and Google Scholar) using citation tools and keywords (intergrowth AND (standard OR reference OR formula OR model OR curve); all from 2014 to the last search on April 16th, 2021). We included full-text articles investigating the ability of INTERGROWTH-21st EFW standards to predict maternal, fetal or neonatal adverse outcomes in women with a singleton pregnancy who gave birth to infants with no congenital abnormalities. The study was registered on PROSPERO under the number CRD42020115462. Risk of bias was assessed with a customized instrument based on the CHARMS checklist and composed of 9 domains. Meta-analysis was performed using relative risk (RR [95%CI]) and summary ROC curves on outcomes reported by two or more methodologically homogeneous studies | ||
| 520 | |a RESULTS: Sixteen studies evaluating fifteen different outcomes were selected. The risk of bias was high (>50% of studies with high risk) for two domains: blindness of assessment (81.3%) and calibration assessment (93.8%). Considering all the outcomes investigated, for 95% of the results, the specificity was above 73.0%, but the sensitivity was below 64.1%. Pooled results demonstrated a higher RR of neonatal small for gestational age (6.71 [5.51-8.17]), Apgar <7 at 5 min (2.17 [1.48-3.18]), and neonatal intensive care unit admission (2.22 [1.76-2.79]) for fetuses classified <10th percentile when compared to those classified above this limit. The limitation of the study is the absence of heterogeneity exploration or publication bias investigation, whereas no outcomes were evaluated by more than five studies | ||
| 520 | |a CONCLUSIONS: The IG-21 EFW standard has low sensitivity and high specificity for adverse events of pregnancy. Classification <10th percentile identifies a high-risk group for developing maternal, fetal and neonatal adverse outcomes, especially neonatal small for gestational age, Apgar <7 at 5 min, and neonatal intensive care unit admission. Future studies should include blind assessment of outcomes, perform calibration analysis with continuous data, and evaluate alternative cutoff points | ||
| 650 | 4 | |a Meta-Analysis | |
| 650 | 4 | |a Systematic Review | |
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Review | |
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| 650 | 4 | |a adverse fetal outcomes | |
| 650 | 4 | |a adverse maternal outcomes | |
| 650 | 4 | |a adverse neonatal outcomes | |
| 650 | 4 | |a estimated fetal weight | |
| 650 | 4 | |a systematic literature review | |
| 700 | 1 | |a Carrilho, Thaís R B |e verfasserin |4 aut | |
| 700 | 1 | |a Canuto, Raquel |e verfasserin |4 aut | |
| 700 | 1 | |a Schlussel, Michael M |e verfasserin |4 aut | |
| 700 | 1 | |a Farias, Dayana R |e verfasserin |4 aut | |
| 700 | 1 | |a Ohuma, Eric O |e verfasserin |4 aut | |
| 700 | 1 | |a Kac, Gilberto |e verfasserin |4 aut | |
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