People born extremely premature have a significantly higher risk of developing psychiatric problems later in life, a new Canadian study says.
Researchers at McMaster University in Hamilton, Ont., studied 174 people born in Ontario between 1977 and 1982 — 84 of whom weighed less than 1 kg (2.2 lbs.) at birth, and 90 of whom fell into the range of normal birth weight.
The low-birth-weight babies were 2.5 times more likely to develop a mental health problem such as depression, an anxiety disorder or attention-deficit/hyperactivity disorder (ADHD), the study found.
The likelihood is even higher — nearly 4.5 times — for those whose mothers received a high dose of steroids before giving birth.
At the same time, the research found a positive outcome: the low-birth-weight babies were nearly three times less likely to develop an alcohol or substance abuse disorder.
The study was published in the journal Pediatrics.
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