Open research questions in Maternal Mental Health During Pregnancy and Postpartum

What the literature leaves open

• The focus of this review was on postpartum mental health conditions, hence pre-existing and/or antenatal mental conditions were not investigated. There is limited literature available to address the important issue of depression, anxiety, and PTSD following pregnancies complicated by hypertension with only 17 studies identified that looked specifically at this association.

  Letter to the Editor: Advancing predictive psychiatry in perinatal care: The imperative of multidimensional modeling for postpartum anxiety following preeclampsia · 2026 · DOI

• further characterization of the dose-response relationship, - investigation of the timing of PA assessment during pregnancy, - examination of the type and domain of physical activity

  Associations of physical activity during pregnancy with antenatal and postpartum depression: a systematic review and dose-response meta-analysis · 2026 · DOI

• Prior meta-analyses have shown that higher levels of physical activity during pregnancy are associated with a lower risk of depression, but these studies relied on relatively crude exposure categories. The study aims to characterize the dose-response relationship between physical activity and depression in perinatal women. The study investigates the association between physical activity and depression in different periods of pregnancy.

  Associations of physical activity during pregnancy with antenatal and postpartum depression: a systematic review and dose-response meta-analysis · 2026 · DOI

• Further studies are needed to validate the findings in larger and more diverse populations. Research should explore the use of voice acoustic features in combination with other modalities for PPD screening. Studies should investigate the effectiveness of early interventions for PPD based on voice acoustic features.

  A multimodal feature fusion model integrating voice acoustic features and early key risk factors for early screening of postpartum depression: a prospective short-term longitudinal observational study · 2026 · DOI

• Rigorous, co-produced revision to enhance validity, inclusivity and clinical utility, - Consideration of broader questions of construct validity, content validity, acceptability and alignment with contemporary conceptualisations of perinatal mental health

  Rethinking the Edinburgh Postnatal Depression Scale: contemporary relevance, validity and implications for future research · 2026 · DOI

• The EPDS may not capture the complexity and heterogeneity of perinatal mental health conditions. The scale's items may be ambiguous or problematic, leading to limited accuracy and clinical utility. The paper highlights the need for a more inclusive and participatory approach to measurement development.

  Rethinking the Edinburgh Postnatal Depression Scale: contemporary relevance, validity and implications for future research · 2026 · DOI

• Most research into postpartum psychiatric disorders has focused on postpartum depression, with limited understanding of distinct subtypes. There is a need to identify specific symptom patterns to help identify those at risk for later psychiatric care.

  Subtypes of postpartum depressive symptoms and the association with subsequent psychiatric care: latent class analysis · 2026 · DOI

• Limited data on lithium use patterns during pregnancy. A need to understand the prevalence and patterns of lithium prescriptions in the perinatal period.

  Lithium prescribing in the perinatal period: UK primary care cohort study · 2026 · DOI

• The study used a web-based platform which may have limited the sample, - The study only examined the react natural condition, - The study had a relatively small sample size of 396 parents

  Parental Coping, Affective Symptoms, and Affective Reactions to Parenting Stress in Parents of Adolescents During COVID-19 · 2026 · DOI

• There is a lack of research on gender differences in stress responses and coping behaviors among parents. The study addresses the gap in literature by recruiting parents of adolescents during the COVID-19 pandemic. The gap in understanding the relationship between parental coping, affective symptoms, and affective reactions to parenting stress is addressed.

  Parental Coping, Affective Symptoms, and Affective Reactions to Parenting Stress in Parents of Adolescents During COVID-19 · 2026 · DOI

• Further investigation is needed to explore the disparities in maternal mental health outcomes across ethnic groups. Future studies should consider using more diverse and representative datasets. The development of more accurate and reliable models for predicting PPD is needed. Research should focus on identifying effective interventions for preventing and treating PPD.

  Leveraging Machine Learning to Uncover Ethnic-Specific Predictors of Maternal Postpartum Depression · 2026 · DOI

• There is no single integrated theory that encompasses all psychosocial and socioeconomic factors in explaining PPD, - Prior studies have not examined the predictive factors of PPD using machine learning, - There is a need to identify ethnic-specific predictors of maternal PPD.

  Leveraging Machine Learning to Uncover Ethnic-Specific Predictors of Maternal Postpartum Depression · 2026 · DOI

• Longitudinal evaluation of the effects of Community Navigation on child and family outcomes, - Investigation of the program's effectiveness in different populations and settings

  Community Navigation: Iterative Development and Implementation of a Prenatal Psychosocial System of Care · 2026 · DOI

• lack of a universal psychosocial system of care that can be implemented during the prenatal period, - limited understanding of how to effectively engage families during pregnancy and connect them with community resources

  Community Navigation: Iterative Development and Implementation of a Prenatal Psychosocial System of Care · 2026 · DOI

• The study had a small sample size, - The study was limited to a mid-Atlantic city, - The study was affected by the COVID-19 pandemic, - The study had limited generalizability due to the specific inclusion criteria

  Feasibility, Satisfaction, and Preliminary Efficacy Trial of text4FATHER for Engaging Expectant Fathers in Infant Care from Pregnancy to Early Infancy · 2026 · DOI

• The lack of effective strategies to engage expectant fathers in infant care, particularly those with lower income and education levels. The insufficient leverage of maternity care settings to promote expectant father engagement. The need for practice-based evidence to improve infant, mother, and father wellbeing.

  Feasibility, Satisfaction, and Preliminary Efficacy Trial of text4FATHER for Engaging Expectant Fathers in Infant Care from Pregnancy to Early Infancy · 2026 · DOI

• No formal pairwise statistical comparisons were performed among the machine learning models, - The differences among XGBoost, LightGBM, and random forest were small, - The study was limited to two medical centers, - The sample size was relatively small, - The study did not report any external validation of the web-based calculator

  Development and external validation of an explainable XGBoost model with a web-based calculator for risk prediction of postpartum depressive symptoms · 2026 · DOI

• Insufficient external validation of existing machine learning models for predicting postpartum depression. Limited interpretability of existing models. Lack of accessible clinical tools for predicting postpartum depressive symptoms.

  Development and external validation of an explainable XGBoost model with a web-based calculator for risk prediction of postpartum depressive symptoms · 2026 · DOI

• Further research is needed to identify which risk factors are most convincingly linked to PPD, - More high-quality studies are needed to improve the evidence base

  Risk factors for postpartum depression: an umbrella review · 2026 · DOI

• The existing evidence on risk factors associated with postpartum depression is scattered across multiple meta-analyses. There is a need for a comprehensive synthesis of the evidence to identify high-priority targets for prevention and intervention. The methodological quality and credibility of the existing meta-analyses have not been systematically assessed.

  Risk factors for postpartum depression: an umbrella review · 2026 · DOI

• The high proportion of excluded subjects in Cohort 2 was likely due to increased motion and perception of environmental changes related to older infant age, - Small sample size, - Limited generalizability due to specific cohort characteristics

  Maternal depression with and without a history of childhood maltreatment and newborn white matter microstructure · 2026 · DOI

• Investigating the long-term effects of maternal depressive symptoms and CM on offspring brain development, - Examining the role of other prenatal exposures on offspring brain development, - Studying the potential benefits of assessing trauma history and monitoring psychosocial well-being during pregnancy

  Maternal depression with and without a history of childhood maltreatment and newborn white matter microstructure · 2026 · DOI

• The study faces challenges in accounting for confounders and mechanistic variables in the association between maternal stress exposures and child mental health outcomes. It must consider the complexity of intergenerational stress transmission and its impact on offspring neurodevelopment. The research needs to address the methodological challenges of leveraging diverse measures of child mental health outcomes.

  Maternal adverse childhood experiences and prenatal stress: Intergenerational transmission and offspring mental health in the ECHO Cohort · 2026 · DOI

• The complexity of examining the full spectrum of maternal mental health. The need to account for potential confounding variables, such as child sex, ethnicity, maternal education level, and average monthly household income. The challenge of handling missing data using Full Information Maximum Likelihood estimation.

  Positive and negative maternal mental health demonstrate distinct pathways to childhood depression · 2026 · DOI

• The lack of research examining the full spectrum of maternal mental health. The need to investigate the differential effects of positive and negative maternal mental health on childhood depressive symptoms. The importance of understanding the neurodevelopmental pathways linking maternal mental health to childhood depression.

  Positive and negative maternal mental health demonstrate distinct pathways to childhood depression · 2026 · DOI

Most-cited papers in Maternal Mental Health During Pregnancy and Postpartum

• Detection of Postnatal Depression · The British Journal of Psychiatry · 1987 · 12,008 citations
• Genetic Epidemiology of Major Depression: Review and Meta-Analysis · American Journal of Psychiatry · 2000 · 2,638 citations
• Maternal depression and parenting behavior · Clinical Psychology Review · 2000 · 2,090 citations
• Effects of perinatal mental disorders on the fetus and child · The Lancet · 2014 · 1,866 citations
• Risk for psychopathology in the children of depressed mothers: A developmental model for understanding mechanisms of transmission. · Psychological Review · 1999 · 1,774 citations
• Gender differences in depression · The British Journal of Psychiatry · 2000 · 1,587 citations
• Epidemiology of women and depression · Journal of Affective Disorders · 2003 · 1,561 citations
• A Meta-analysis of Depression During Pregnancy and the Risk of Preterm Birth, Low Birth Weight, and Intrauterine Growth Restriction · Archives of General Psychiatry · 2010 · 1,535 citations
• Prevalence and determinants of common perinatal mental disorders in women in low- and lower-middle-income countries: a systematic review · Bulletin of the World Health Organization · 2011 · 1,444 citations
• Predictors of Postpartum Depression · Nursing Research · 2001 · 1,431 citations

Most recent work

• Risk factors for postpartum depression: an umbrella review · Frontiers in Public Health · 2026
• Prenatal Exposure to Acid-Suppressive Medications and Risk of Neuropsychiatric Disorders in Children · JAMA · 2026
• Maternal and neonatal ICU admissions and postpartum outcomes: A cross-sectional observational study on anxiety, depression, and maternal–infant attachment · Journal of Affective Disorders · 2026
• Psychometric validation of the Patient Health Questionnaire-9 for pregnant women: A comprehensive longitudinal study in China · Journal of Affective Disorders · 2026
• Childhood adversity and adolescent motherhood: A cross-sectional study of trauma, partner age gaps, and parenting in the Dominican Republic · Child Abuse & Neglect · 2026
• Leveraging Machine Learning to Uncover Ethnic-Specific Predictors of Maternal Postpartum Depression · Prevention Science · 2026
• Quasi-experimental impacts of unconditional prenatal and infant cash transfers on postpartum parenting stress. · Journal of Family Psychology · 2026
• Health Insurance Coverage and Rural–Urban Differences in Maternal Health Care Among Postpartum Women—National Health Interview Survey · Birth · 2026
• Beyond Linear Risk: A Machine Learning Approach to Understanding Perinatal Depression in Context · Multivariate Behavioral Research · 2026
• Factor structure, measurement invariance, and clinical change benchmarks of the Generalized Anxiety Disorder-7 (GAD-7) in pregnancy and postpartum · Journal of Anxiety Disorders · 2026

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