Observational studyBMC pregnancy and childbirth2023
Associations between the size and duration of asymptomatic subchorionic hematoma and pregnancy outcomes in women with singleton pregnancies.
Observational study in BMC pregnancy and childbirth, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
9 citing papers in PubMed, 1 synthesis or guideline pooled it, 9 citations in OpenAlex.
- Association between subchorionic hematoma in the first trimester and outcomes of singleton pregnancies achieved through assisted reproductive technology: a systematic review and meta-analysis.Journal of assisted reproduction and genetics · 2024Pooled it
- LAMB1 regulates COL3A1 and RAC1 expression during subchorionic hemorrhage progression.BMC biology · 2026Article
- Article
- Successful Management of a Massive Second-Trimester Subchorionic Hematoma: A Case Report.Case reports in medicine · 2026Article
- The Effect of Prednisone and Levothyroxine Sodium on Miscarriage Risk and Thyroid Function in Patients with High TPOAb Concentrations: A Retrospective Cohort Study.International journal of women's health · 2026Article
- A nomogram for predicting the risk of fetal growth restriction in singleton pregnancies with subchorionic hematomas detected in first trimester.BMC pregnancy and childbirth · 2025Article
- Evaluation of Pregnancy Risks in Women with Subchorionic Hematoma Using Machine Learning Models.Medical science monitor : international medical journal of experimental and clinical research · 2024Article
- Prediction of preterm birth using machine learning: a comprehensive analysis based on large-scale preschool children survey data in Shenzhen of China.BMC pregnancy and childbirth · 2024Article
- Umbilical artery thrombosis risk factors and perinatal outcomes.BMC pregnancy and childbirth · 2024Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors at 1 institution in 1 country.
Funding
Abstract
backgroundThe purpose of this study was to investigate the relationship between the size and duration of asymptomatic subchorionic hematoma and pregnancy outcomes in women with singleton pregnancies.
methodsThis was a retrospective study that enrolled 701 singleton pregnant women who were diagnosed with asymptomatic subchorionic hematoma by ultrasound at 5-10 gestational weeks. The control group recruited 640 normal pregnant women without subchorionic hematoma who were matched with subchorionic hematoma group on baseline characteristics. The pregnancy outcomes were compared between the two groups, and the associations of the size and duration of subchorionic hematoma with pregnancy outcomes were analyzed by logistic regression model.
resultsCompared with the normal pregnancy group, the incidence of, gestational diabetes mellitus, gestational thrombocytopenia, placenta adhesion, fetal growth restriction, macrosomia in subchorionic hematoma group were higher (all P < 0.05). After adjusting for confounding factors, the hematoma size was positively associated with the occurrence of gestational hypothyroidism (adjusted OR[95%CI]: 1.029[1.004-1.054]), intrahepatic cholestasis of pregnancy (adjusted OR[95%CI]: 1.095[1.047-1.146]), term premature rupture of membranes (adjusted OR[95%CI]: 1.044[1.005-1.085]), hypertensive disorders of pregnancy (adjusted OR[95%CI]: 1.030[1.0004-1.060]), gestational thrombocytopenia (adjusted OR[95%CI]: 1.078 [1.045-1.113]), placenta adhesion (adjusted OR[95%CI]: 1.054 [1.027-1.082]), and the duration of hematoma was positively associated with the incidence of term premature rupture of membranes (adjusted OR[95%CI]: 1.070[1.027-1.115]), gestational diabetes mellitus (adjusted OR[95%CI]: 1.938 [1.886-1.993]) and fetal growth restriction (adjusted OR[95%CI]: 1.194 [1.124-1.268]).
conclusionsThe presence, size and duration of a first-trimester asymptomatic subchorionic hematoma may be associated with adverse pregnancy outcomes at later gestations such as term premature rupture of membranes and fetal growth restriction.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.