Mothers who drink moderately have smarter kids (?)

It's nice to see the official wisdom getting a kick in the pants but this analysis says that the report below is misleading. I noted particularly: "Compared with abstainers they also found that ‘light’ drinkers were more likely to be better educated, from higher income households and were less likely to have smoked during pregnancy". So if there were any real effects they were likely to be socio-economic rather than due to alcohol. I would likely to look more closely at the study but I could not find it online where it is said to be. The full citation of the study appears to be: Kelly Y, Sacker A, Gray R, Kelly J, Wolke D, Quigley MA. "Light drinking in pregnancy, a risk for behavioural problems and cognitive deficits at 3 years of age?"


Women who drink alcohol occasionally during pregnancy do not harm their unborn babies – in fact their children may even benefit, a large study suggests. Research involving more than 12,000 children showed that mothers who drank lightly during pregnancy – defined as one to two units, or a single drink a week – did not increase the risk of having babies with mental impairment or behavioural problems. Rather, children born to light drinkers were found to be less likely to have problems and peformed better in some tests compared with offspring of mothers who did not drink at all.



The findings run counter to government guidance, which advises pregnant women and those trying to conceive to cut out alcohol altogether. The latest study is the most comprehensive examination so far of the effects of light drinking by expectant mothers. However, doctors reiterated warnings last night of the risks of heavy drinking during pregnancy, and expressed concern that women should not be “lulled into a false sense of security”.

Researchers at University College London examined data on the behaviour and mental skills of 12,495 three-year-olds. The data, taken from the UK Millennium Cohort Study, showed that boys born to mothers who drank lightly were 40 per cent less likely to have conduct problems than those whose mothers abstained, and were 30 per cent less likely to be hyperactive. They also had higher scores on tests of vocabulary and whether they could identify colours, shapes, letters and numbers compared with those born to mothers who did not drink.

Girls born to light drinkers were 30 per cent less likely to have emotional symptoms and peer problems compared with those born to abstainers, although these differences could partially be explained by family and social backgrounds, the researchers said. The National Institute for Health and Clinical Excellence (NICE), the medical watchdog, said last year that there was no consistent evidence to show whether a small amount of alcohol damaged unborn children. In guidance issued in March, however, NICE advised that women should not drink when trying to conceive or during the first three months of pregnancy.

The Department of Health, the Royal College of Obstetricians and Gynaecologists and the British Medical Association have emphasised that the safest option was not to drink alcohol at all while pregnant.

Doctors have long suspected an association between foetal abnormality and alcohol consumption during pregnancy. Research showing a link with stillbirths first appeared in 1899. Foetal alcohol syndrome is diagnosed in about 6,000 children a year. The children, born to women who drink excessively, are short, hyperactive and have small eyes and no indentation between their nose and thin upper lip.

Yvonne Kelly, who led the UCL study, published today in the International Journal of Epidemiology, said that “very few studies have considered whether light drinking is a risk”. She said that the research highlighted “an inconsistency in policy around the issue”.

Sir Liam Donaldson, the Chief Medical Officer for England, said that official advice was clear. “If they do choose to drink, to protect the baby they should not drink more than one to two units of alcohol once or twice a week and should not get drunk,” he added. Siobhan Freegard, the co-founder of Netmums.com, a mothering advice forum, said: “While the advice and guidance on alcohol does seem to keep changing, none of it is conclusive. And so most of us seem to feel that the ‘occasional glass doesn’t hurt’ approach works for us.”

Source

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