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Study finds three-fold increase in pregnancy among young girls with mental illness

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Young girls with mental illness are three times more likely to become teenage parents than those without a major mental illness, according to a first-of-its-kind study by researchers at the Institute for Clinical Evaluative Sciences (ICES) and Women’s College Hospital.

The study, published today in the journal Pediatrics, is the first to examine trends in fertility rates among girls with mental illness.

“Research tells us that young girls are at high risk of -pregnancy complications, including preterm birth, poor fetal growth and postpartum depression,” said Dr. Simone Vigod, a psychiatrist at Women’s College Hospital and an adjunct scientist at ICES. “Add to this a pre-existing mental illness, and these young women are forced to manage significant additional challenges.”

In the study, researchers examined live birth rates from 1999 to 2009 in 4.5 million girls, 15 to 19 in Ontario, with and without a major mental health illness. They found young girls with a major mental health illness, including depression, bipolar disorder and other psychotic disorders, were three times more likely to become teenage parents. Although birth rates in both affected and unaffected adolescent girls decreased over time, the gap between the groups appeared to be increasing slightly over the 10-year study period. Among girls with a major mental illness, live births decreased by only 14 per cent during the study period compared to a 22 per cent drop among unaffected girls.

“Although we do know some of the risk factors behind why girls with mental health illness may be at increased risk of becoming pregnant, pregnancy prevention programs in most developed countries have not traditionally considered mental health issues” added Vigod.

The authors suggest targeted school-based programs are needed along with greater integration of reproductive healthcare into adolescent mental healthcare programs.

“Interventions that target and integrate reproductive and mental healthcare for young women are crucial to ensure we are providing the best care possible for adolescent mothers,” said Cindy-Lee Dennis, senior scientist at Women's College Research Institute and a Canada Research Chair in Perinatal Community Health. “Having these programs and offerings in place will also help reduce teenage pregnancy and improve mother and child health outcomes.”

Authors: Vigod S, Dennis CL, Kurdyak P, Cairney J, Guttmann A and Taylor V.

ICES is an independent, non-profit organization that uses population-based health information to produce knowledge on a broad range of healthcare issues. Our unbiased evidence provides measures of health system performance, a clearer understanding of the shifting healthcare needs of Ontarians, and a stimulus for discussion of practical solutions to optimize scarce resources. ICES knowledge is highly regarded in Canada and abroad, and is widely used by government, hospitals, planners, and practitioners to make decisions about care delivery and to develop policy.

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Women’s College Hospital (www.womenscollegehospital.ca) is advancing the health of women and improving healthcare options for all by delivering innovative models of ambulatory care. Fully affiliated with the University of Toronto, the hospital is Canada’s leading academic, ambulatory hospital and a world leader in women’s health. With more than 800 physicians, nurses and health professionals, the hospital offers a range of specialized clinics and programs that are bridging the gaps in the health system. Women’s College Hospital is helping to keep people out of hospital by being at the forefront of cutting-edge research, diagnosis and treatment that will help prevent illness and enable patients to manage their health conditions. This healthcare enables Canadians to live healthier, more independent lives. At the Women’s College Research Institute, scientists combine science and patient care to develop innovative solutions to today’s greatest health challenges.

FOR FURTHER INFORMATION PLEASE CONTACT:

  • Deborah Creatura
  • Communications, ICES
  • [email protected]
  • (o) 416-480-4780 or (c) 647-406-5996
  • Julie Saccone
  • Director, Marketing & Communications
  • Women's College Hospital
  • [email protected]
  • 416 323-6400 ext. 4054

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