SynthesisMedicine2017
Prevalence of abnormally invasive placenta among deliveries in mainland China: A PRISMA-compliant Systematic Review and Meta-analysis.
Synthesis in Medicine, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 4 of them syntheses that pooled it.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
16 citing papers in PubMed, 4 syntheses or guidelines pooled it, 22 citations in OpenAlex.
- A Meta-Analysis to Assess the Probable Association of Hypertension During Pregnancy and Placenta Accreta.Medicina (Kaunas, Lithuania) · 2025Pooled it
- Prevalence of placenta previa among deliveries: An update systematic review and meta-analysis after the introduction of the two-child policy in Mainland China.Journal of global health · 2024Pooled it
- Factors and outcomes for placental anomalies: An umbrella review of systematic reviews and meta-analyses.Journal of global health · 2024Pooled it
- Placenta Accreta has a Low Association with Hypertensive Disease During Pregnancy: A Systematic Review Incorporating a Network Meta-analysis.Reproductive sciences (Thousand Oaks, Calif.) · 2022Pooled it
- Case Report: Spontaneous complete uterine rupture in the second and third trimester of pregnancy.Frontiers in medicine · 2026Article
- Clinical insights into placenta accreta spectrum: a comprehensive review.Obstetrics & gynecology science · 2026Review
- Perinatal factors for antepartum hemorrhage in women with placenta accreta spectrum.Frontiers in surgery · 2025Article
- Article
- Accuracy of Prenatal Ultrasonography for Diagnosis of Placenta Accreta Spectrum and Risk Factors in A Tertiary Center in Southern Iran.Galen medical journal · 2024Article
- Ultrasound scoring system for prenatal diagnosis of placenta accreta spectrum.BMC pregnancy and childbirth · 2023Article
- Effect of placenta location detected by ultrasound on the severity of placenta accreta spectrum in patients with placenta previa and placenta accreta spectrum.BMC pregnancy and childbirth · 2023Article
- Role of Placenta Accreta Index for Diagnosis of Placenta Accreta Spectrum in High-Risk Patients.Journal of obstetrics and gynaecology of India · 2022Article
- Double-uterine-incision in the management of placenta previa complicated by placenta accreta spectrum.American journal of translational research · 2021Article
- Diagnostic accuracy of cystoscopy and ultrasonography in the prenatal diagnosis of abnormally invasive placenta.Medicine · 2018Observational
- Prevalence of non-syndromic orofacial clefts: based on 15,094,978 Chinese perinatal infants.Oncotarget · 2018Article
- Prediction nomogram for antepartum hemorrhage in placenta previa women.Therapeutic advances in reproductive healthArticle
Corrections and comments
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Authors and funding
11 authors at 5 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundAbnormally invasive placenta (AIP) or placenta accreta (PA) is considered numerous adverse maternal and fetal-neonatal complications. There has been no detailed study to characterize the prevalence of AIP among deliveries in mainland China.
objectivesWe aimed to fill this gap and obtained overall and regional estimates of AIP prevalence via a systematic review and meta-analysis.
methodsThis systematic review and meta-analysis was totally performed following the Meta-analysis of Observational Studies in Epidemiology guidelines for systematic reviews of observational studies, and the Preferred Reporting Items for Systematic reviews and Meta-Analysis statement for reporting systematic reviews and meta-analysis.
resultsA total of 23 articles (including 350,939) were included. Most studies (22) focused on the placenta increta (PI), only 2 articles in PA, and none in placenta percreta (PP). In this meta-analysis, the overall prevalence of AIP was 0.22% (95% confidence interval 0.18%-0.27%) in a heterogeneous set of studies (I = 93.5%). In a subgroup, the prevalence of PA and PI was 0.48% and 0.23%, respectively. Stratified analyses of PI found that the prevalence was similar in North (0.23% [0.14%-0.32%]) and South (0.23% [0.15%-0.32%]), and lower in Central (0.20% [0.09-0.31%]); the inlanders (0.17% (0.12%-0.23%]) had a lower prevalence of PI than those living in coastal areas (0.24% [0.35%-0.63%]). As time goes on, the prevalence, from 0.03% (0.02%-0.04%) in 1970 to 1979 to 0.48% (0.30%-0.66%) in 2010 to present, was higher and higher. The different prevalence was also found in different in maternal age groups.
conclusionsThis first systematic review and meta-analysis found that the prevalence differed among different geographic areas and maternal age groups. The results would be useful for the design of abnormally invasive placenta planning and implementation adequate health care systems and treatment programs in mainland China.
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