Observational studyArchives of women's mental health2025
New perinatal mental health conditions diagnosed during COVID-19: a population-based, retrospective cohort study of birthing people in Ontario.
Observational study in Archives of women's mental health, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05663762 (How do Perceptions of Coronavirus Disease), which is not on this map. Cited by 2 papers, 1 of them a synthesis that pooled it.
What it found
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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.
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.
How do Perceptions of Coronavirus Disease (COVID-19) Risk Influence Health Decisions in Pregnancy?
Who cites it
2 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Utilization of mental health services during the first year of the COVID-19 pandemic - a systematic review and meta-analysis.European psychiatry : the journal of the Association of European Psychiatrists · 2026Pooled it
- Primary care for depression before and during the COVID-19 pandemic: a retrospective pre-post study.BMJ open · 2026Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
10 authors.
Funding
Abstract
purposeWe aimed to determine the incidence of mental health diagnoses and associated health and social risk factors among perinatal people in three different COVID-19 phases.
methodsWe conducted a population-based, retrospective cohort study using linked administrative datasets. We included persons with live, in-hospital births in Ontario, Canada from January 1 to March 31 in 2019, 2021, or 2022 (three phases relative to COVID-19 with different public health policy measures). We excluded people with prior mental health diagnoses. We used diagnostic codes to identify new onset of depression, anxiety, or adjustment disorder in the antenatal and postpartum period. We developed multivariable, modified Poisson models to examine associations between sociodemographic and clinical factors and new mental health diagnoses in each phase.
resultsThere were 72,242 people in our cohort. Antenatal mental health diagnoses were significantly higher in 2021 (aRR = 1.32; CI = 1.20-1.46) and 2022 (aRR = 1.22; CI = 1.11-1.35) versus 2019. Postpartum diagnoses were significantly greater in 2021 (aRR = 1.16; CI = 1.08-1.25) versus 2019. Antenatal diagnoses were associated with birth year, previous stillbirth, pre-existing hypertension, multiparity, residential instability, and ethnocultural diversity. Postpartum diagnoses were associated with birth year, maternal age, multiparity, care provider profession, assisted reproductive technology, birthing mode, pre-existing hypertension, intensive care admission, hospital readmission, residential instability, and ethnocultural diversity. Family physicians increasingly made mental health diagnoses in 2021 and 2022.
conclusionIncreased incidence of perinatal mental health diagnoses during COVID-19 suggests complex dynamics involving pandemic and health and social risk factors. REGISTRATION: This study was registered with Clinicaltrials.gov (NCT05663762) on December 21, 2022.
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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.