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    April 2018
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Teen Mothers May Have Higher Heart Risks

Women who became first-time mothers as teens were significantly more likely than older mothers to have greater risks for heart and blood vessel disease later in life, according to a new study in the Journal of the American Heart Association. Catherine Pirkle, an assistant professor in the Office of Public Health Studies at the University of Hawaiʻi at Mānoa, served as lead author.

Catherine Pirkle

“If adolescent childbirth increases the risk of cardiovascular disease risk, then our findings reinforce the need to assure that girls and adolescents have sufficient sexual education and access to contraception to avoid adolescent childbearing in the first place,” Pirkle said. “If the association is mediated by lower educational attainment, poorer health behaviors and other factors caused by young motherhood, then our findings also suggest a need to provide more support to young mothers.”

Researchers found that women reporting a first birth before the age of 20 scored significantly higher on the Framingham Risk Score, a measure commonly used to estimate the 10-year cardiovascular risk. In comparison, women whose first births occurred at older ages had lower average risk scores.

The lowest cardiovascular risk, however, was among women who had never given birth.

“Adolescent mothers may need to be more careful about lifestyle factors that increase the risk of cardiovascular disease, including maintaining a healthy body weight and sufficient physical activity,” said Pirkle. “Clinicians may need to pay more careful attention to women’s reproductive characteristics, and more intensive screening of cardiovascular-disease risk may be required of women reporting early childbirths.”

While previous studies found that women who had several pregnancies had higher cardiovascular risks, in the most recent study, the number of lifetimes births did not affect cardiovascular risk.

Pirkle notes that women who had never given birth may have miscarried or terminated pregnancies, but would have experienced dramatically lower average levels of pregnancy-related complications. Therefore, they would have no, or much shorter durations, of pregnancy-related stress on the body, which may explain the lower average risk scores in that group.

Investigators obtained information about age at first birth for 1,047 women participating in the International Mobility in Aging Study in 2012. Study participants were between the ages of 65 and 74 and were from Canada, Albania, Colombia and Brazil.

Read more at the American Heart Association story.