Prospective parents' mental health linked to premature births

October 12, 2020

Both a mother's and father's mental health are associated with increased risk that their baby will be born premature, a new study has found.

The research, led by the Murdoch Children's Research Institute (MCRI) and published in EClinicalMedicine, found men with persistent mental health problems through adolescence and young adulthood were more likely to have a baby born premature. Women with anxiety and depression during pregnancy were more likely to have a preterm birth.

Study co-lead MCRI'S and Deakin University's Dr Elizabeth Spry said prior to this study the impact of maternal and paternal mental health history on offspring preterm birth and birth weight was unknown.

The study involved 398 women and 267 men from the Victorian Intergenerational Health Cohort Study (VIHCS), who were assessed over 15 years for anxiety and depressive symptoms from adolescence to young adulthood and during subsequent pregnancies.

Dr Spry said that fathers were often neglected in research on children's early growth and development.

"We found that men with persistent mental health symptoms in the decades leading up to pregnancy were more likely to have premature babies. Our study joins growing evidence of the important role that fathers play in the health and development of their children, and suggests that these links begin well before babies are conceived," she said.

"Most research on children's early development has focused on mums. This means that public health recommendations are also almost entirely focused on what mums should and shouldn't do when planning pregnancy or having a child. In contrast, men receive very little guidance or support."

Study co-lead, King's College London's Dr Claire Wilson, said understanding how mental health problems starting in adolescence affect birth outcomes could open up new opportunities for the prevention of premature birth.

"Mental health may affect parental reproductive biology and antenatal pathways and can have an impact on genetic and environmental influences such as substance use and nutrition, which could be linked to a baby's development," she said.

"Pre-term birth is common and is a leading cause of infant deaths worldwide, but the underlying causes have been largely unknown. Early and mid-late preterm birth can carry lifelong effects on health and development such as visual and hearing impairments and poor health and growth."

MCRI Professor George Patton said the findings further strengthened the need for expanding preconception mental health care to both men and women, prior to them becoming parents.

"The findings emphasise a need for coordinated care between child and adolescent, adult and specialist perinatal health services," he said.

"Intervention in adolescence is likely to yield benefits not only for parents' own continuing mental health, but also for their child's development, both by reducing the risk of premature birth and promoting positive engagement and nurturing care across the early years of life."

Professor Patton said prospective parent's mental health had also suffered during COVID-19 and the subsequent lockdowns.

"Rates of anxiety and depression have risen markedly in adolescents and young adults across the course of the pandemic," he said. "Many problems will resolve but there is a possibility that some will continue given ongoing economic disruption and unemployment. More than ever, we need research to track young parents through their pregnancies and beyond."
-end-
Researchers from Deakin University, South London and Maudsley NHS Foundation Trust, University of Melbourne, Royal Women's Hospital, Florey Institute of Neuroscience and Mental Health and the University of Bristol also contributed to the parental study findings.

Publication:

Elizabeth Spry, Claire A Wilson, Melissa Middleton, Margarita Moreno-Betancur, Lex W Doyle, Louise M Howard, Anthony J Hannan, Mary E Wlodek, Jeanie LY Cheong, Lindsey A Hines, Carolyn Coffey, Stephanie Brown, Craig A Olsson and George C Patton.

'Parental mental health before and during pregnancy and offspring birth outcomes: a 20-year preconception cohort of maternal and paternal exposure,'
EClinicalMedicine. DOI: 10.1016/j.eclinm.2020.100564

Funding:

The study was supported by the Australian Research Council (DP180102447). Data collection for VIHCS was supported by the National Health and Medical Research Council (437015 and 1008273), Australian Rotary Health, Colonial Foundation, Perpetual Trustees, Financial Markets Foundation for Children (Australia), The Royal Children's Hospital Foundation and the Murdoch Children's Research Institute. CAW is supported by a Medical Research Council (UK) Clinical Research Training Fellowship (MR/P019293/1). GCP is supported by an NHMRC Senior Principal Research Fellowship (APP1117873) and Career Development Fellowship to JLYC (1141354). SB is supported by an NHMRC Senior Research Fellowship (APP1103976) and CAO is an NHMRC Investigator Grant (APP1175086). MMB is the recipient of an Australian Research Council Discovery Early Career Award (project number DE190101326) funded by the Australian Government. LMH receives salary support from the South London and Maudsley NHS Foundation Trust and King's College London Biomedical Research Centre. LAH is supported by the Wellcome Trust (UK). Research at the Murdoch Children's Research Institute is supported by the Victorian Government's Operational Infrastructure Program.

*The content of this communication is the sole responsibility of MCRI and does not reflect the views of the NHMRC.

Available for interview:

Dr Elizabeth Spry
Professor George Patton, MCRI Group Leader Adolescent Health
Dr Claire Wilson, King's College London

Murdoch Childrens Research Institute

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