Risk drinking before pregnancy can increase the risk of the development behavioural problems in toddlers. This comes from a new study using data from the Norwegian Mother and Child Cohort Study (MoBa). Early intervention to help and support mothers and their children could help to prevent these problems from developing into long term behavioural problems.
In the study, several screening questions were used to measure maternal drinking behaviour; how many drinks were needed to feel high, had others irritated or hurt them by criticising their alcohol consumption, had they felt they ought to drink less alcohol, and had they ever drunk alcohol in the morning to relieve a hangover.
The study shows that risk drinking before pregnancy increases the risk of early behaviour problems among children. According to the researchers, risk drinking may be due to other associated risk factors in maternal behaviour such as anxiety, depression or attention deficit hyperactivity disorder (ADHD), which also are known to have an impact on child behavioural problems.
Prenatal exposure to alcohol is known to affect the developing fetus, with adverse cognitive and behavioural effects. Most risk drinking women therefore limit or stop drinking alcohol while pregnant. Paternal risk drinking is also known to have a negative impact on toddler behaviour. This is the first study to study the impact of risk drinking before pregnancy. The results could not be explained by alcohol consumption during pregnancy and after birth.
"This increased risk for behavioural problems in the child is probably not due to the risk drinking per se, but rather to the general mental health and lifestyle of some of the mothers. Risk drinking behaviour before pregnancy may indicate that these families could need closer follow-up and support during the early years of the child's life" says Ann Kristin Knudsen, primary author of the article published in the European Child and Adolescent Psychiatry journal.
The study considered both internalising and externalising behavioural problems among the toddlers. Internalising behavioural problems include anxiety, inhibition, withdrawal or depression. Restlessness, defiance, fighting and lack of remorse are examples of externalising behaviour. These are known risk factors for behaviour problems in childhood and adolescence, which sometimes continue into adulthood.
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