ArticlePloS one2019
Incidence and risk factors for postpartum hemorrhage among transvaginal deliveries at a tertiary perinatal medical facility in Japan.
Article in PloS one, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06005077 (Evaluation of the Effect of Perineal Massage and Warm Application on Perineal Trauma, Pain and Birth Comfort in Labor), which is not on this map. Cited by 27 papers, 3 of them syntheses 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.
Evaluation of the Effect of Perineal Massage and Warm Application on Perineal Trauma, Pain and Birth Comfort in Labor
Who cites it
27 citing papers in PubMed, 3 syntheses or guidelines pooled it, 107 citations in OpenAlex.
- Pooled it
- Magnitude of postpartum hemorrhage and associated factors among women who gave birth in Ethiopia: a systematic review and meta-analysis.Reproductive health · 2022Pooled it
- Magnitude of postpartum hemorrhage and its associated factors in Ethiopia: a systematic review and meta-analysis.Reproductive health · 2022Pooled it
- Does induction or augmentation of labor increase the risk of postpartum hemorrhage in pregnant women with anemia? A multicenter prospective cohort study in India.International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics · 2025Article
- Association between obesity in women with multiple gestations and adverse obstetric outcomes: a study of an American population database with over 136,000 unique deliveries.Archives of gynecology and obstetrics · 2025Article
- Impact of Maternal Weight and Gestational Weight Gain on Postpartum Hemorrhage and Adverse Outcomes: A Case-Control Study.International journal of women's health · 2025Article
- Article
- Article
- Factors associated with postpartum hemorrhage in selected Southern Oromia hospitals, Ethiopia, 2021: an unmatched case-control study.Frontiers in global women's health · 2024Article
- Incidence and predictors of severe postpartum hemorrhage after cesarean delivery in South Central Ethiopia: a retrospective cohort study.Scientific reports · 2023Article
- Article
- Risk factors of primary postpartum hemorrhage among postnatal mothers in the public hospital of southern Tigray, Ethiopia, 2019: A case-control study.Frontiers in global women's health · 2023Article
- Nomogram-based risk prediction of macrosomia: a case-control study.BMC pregnancy and childbirth · 2022Article
- Assessment of post-partum haemorrhage risk among women with moderate thrombocytopenia.British journal of haematology · 2022Article
- Iron Deficiency Anaemia and Atonic Postpartum Haemorrhage Following Labour.Reproductive sciences (Thousand Oaks, Calif.) · 2022Article
- Article
- The Effect of Nursing Intervention Model Using Mobile Nursing System on Pregnancy Outcome of Pregnant Women.Journal of healthcare engineering · 2022Article
- Prevalence and risk factors of severe postpartum hemorrhage: a retrospective cohort study.BMC pregnancy and childbirth · 2021Article
- Factors Affecting the Risk of Postpartum Hemorrhage in Pregnant Women in Tibet Health Facilities.Medical science monitor : international medical journal of experimental and clinical research · 2021Article
- Incidence and Risk Factors of Postpartum Hemorrhage in China: A Multicenter Retrospective Study.Frontiers in medicine · 2021Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
13 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Postpartum hemorrhage (PPH) remains a leading cause of maternal death worldwide, and it is important to understand the relative contributions of different risk factors. We assessed the incidence of these among cases of transvaginal delivery. Between June 2013 and July 2016, a prospective cohort study was conducted at a tertiary perinatal medical facility in Japan. Women were administered a questionnaire to ascertain risk factors for PPH, defined as a blood loss of 1,000 ml or more assessed using a calibrated under-buttocks drape and collection vessel at childbirth. We analyzed 1,068 transvaginal deliveries of singleton pregnancies. The incidence of PPH was 8.7%, and of severe PPH (1,500 ml blood loss or more) was 2.1%. Risk factors for postpartum hemorrhage among the deliveries were: fetal macrosomia (over 4000 g); pregnancy-induced hypertension; pregnancy generated by assisted reproductive technology; severe vaginal or perineal lacerations; and weight gain over 15 kg during pregnancy. Such high weight gain significantly increased the incidence of PPH compared with women showing less than 10 kg weight gain during pregnancy. Monitoring these identified risk factors could enable extra vigilance during labor, and preparedness for managing PPH in all women giving birth.
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.