Evidence map›Paper›PMID 40980463›Full record

ArticlePublic health in practice (Oxford, England)2025

Feasibility of establishing a Canadian Obstetric Survey System (CanOSS) for severe maternal morbidity: results of a nationwide survey.

Isabelle Malhamé, Rebecca J Seymour, Rizwana Ashraf, Paige Gehrke, Joseph Beyene, Tegwende Seedu, Rashid Ahmed, Susie Dzakpasu, Sara Thorne, Deshayne Fell and 16 more

Abstract read
In one paragraph

Article in Public health in practice (Oxford, England), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from 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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

26 authors.

Isabelle MalhaméDepartment of Medicine, McGill University Health Centre, Montreal, Quebec, Canada.
Rebecca J SeymourDepartment of Obstetrics & Gynaecology, McMaster University, Hamilton, Ontario, Canada.
Rizwana AshrafDepartment of Obstetrics & Gynaecology, McMaster University, Hamilton, Ontario, Canada.
Paige GehrkeDepartment of Obstetrics & Gynaecology, McMaster University, Hamilton, Ontario, Canada.
Joseph BeyeneDepartment of Health Research Methods, Evidence and Impact, McMaster University, Hamilton, Ontario, Canada.
Tegwende SeeduDepartment of Obstetrics & Gynaecology, McMaster University, Hamilton, Ontario, Canada.
Rashid AhmedDepartment of Obstetrics & Gynaecology, McMaster University, Hamilton, Ontario, Canada.
Susie DzakpasuDivision of Surveillance and Epidemiology, Maternal and Infant Health Section, Public Health Agency of Canada, Ottawa, Ontario, Canada.
Sara ThorneDivision of Cardiology, Pregnancy & Heart Disease Program, Mount Sinai Hospital & University Health Network, University of Toronto, Toronto, Canada.
Deshayne FellDepartment of Obstetrics and Gynecology, University of Ottawa, Ottawa, Ontario, Canada.
Amy MetcalfeDepartment of Obstetrics and Gynaecology, University of Calgary, Calgary, Alberta, Canada.
Kenneth K ChenDepartments of Medicine and Obstetrics & Gynecology, Women and Infants Hospital of Rhode Island, Providence, RI, United States of America.
Stephen LapinskyInterdepartmental Division of Critical Care Medicine, University of Toronto, Toronto, Canada.
Leslie SkeithDepartment of Medicine, University of Calgary, Calgary, Alberta, Canada.
Beth Murray-DavisMcMaster Midwifery Research Centre, McMaster University, Hamilton, Ontario, Canada.
Josie ChundamalaPatient Partner, Canada.
Sarah A HutchinsonPatient Partner, Canada.
Thomas Van den AkkerDepartment of Obstetrics & Gynaecology, Leiden University Medical Centre, Leiden, the Netherlands.
Maria B OspinaDepartment of Public Health Sciences, Queen's University, Kingston, Ontario, Canada.
Prakesh S ShahDepartment of Pediatrics, Mount Sinai Hospital, University of Toronto, Toronto, Ontario, Canada.
K S JosephDepartment of Obstetrics & Gynaecology, University of British Columbia and the Children's and Women's Hospital of British Columbia, Vancouver, British Columbia, Canada.
Heather ScottDepartment of Obstetrics & Gynaecology, Dalhousie University and the IWK Health Centre, Halifax, Nova Scotia, Canada.
Jon BarrettDepartment of Obstetrics & Gynaecology, McMaster University, Hamilton, Ontario, Canada.
Jocelynn CookDepartment of Obstetrics and Gynecology, University of Ottawa, Ottawa, Ontario, Canada.
Marian KnightNational Perinatal Epidemiology Unit, University of Oxford, United Kingdom.
Rohan D'SouzaDepartment of Obstetrics & Gynaecology, McMaster University, Hamilton, Ontario, Canada.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Objective: Obtaining data on events, processes, and circumstances leading to severe maternal morbidity (SMM) could enable targeted interventions to improve care. We aimed to assess the feasibility of gathering such data from across Canada through an Obstetric Survey System (CanOSS). Study design: A nationwide survey. Methods: We administered the electronic survey in French or English to birthing unit leads across all Canadian provinces and territories using REDCap. We presented pooled participation rates (95 % confidence intervals [CI]) across birthing units from lowest, medium, and highest tiers of service using Freeman-Tukey double arcsine transformations and common-effect models. Results: Of the 289 birthing units across Canada, 167 (57.8 %) participated in the survey. Pooled participation rates per province and territory stratified by highest, medium, and lowest tiers of service were 91.5 % (95 % CI [73.4, 100]), 58.6 % (95 % CI [48.5, 68.6]), and 54.4 % (95 % CI [41.7, 66.3]), respectively. Units reported postpartum hemorrhage (82.5 %), hypertensive disorders (65.7 %), infections (35.0 %), venous thromboembolism (16.0 %), and maternal birth injuries (15.4 %) as the leading causes of SMM. Most birthing units (80.3 %) had a system in place for reviewing SMM events. Although most review systems involved multidisciplinary expert panels with representation from birthing unit leads (82.0 %), nursing (78.0 %), and obstetrics (73.7 %), specialties, such as obstetric anaesthesia (42.4 %), midwifery (41.5 %), and internal medicine (16.9 %), were underrepresented. Lessons learned were rarely shared outside the hospital and never shared beyond regional health authorities. Importantly, 76.2 % of respondents were willing to contribute anonymized SMM data within a centralized reporting system. Conclusions: Most responding Canadian birthing units have a process in place to review SMM and would be willing to share anonymized data as part of a centralized initiative, thereby demonstrating the feasibility of leveraging existing infrastructures to establish CanOSS.

Indexed as

Feasibility studyMaternal mortalityMaternal near-missNationwide surveyNear-miss eventsObstetric Survey SystemPregnancy-related mortalitySevere maternal morbidity

Identifiers

PMID40980463
PMCPMC12445713

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.