Batty’s team examined the associations between IQ scores obtained when 8,170 boys and girls were 10 years old and their alcohol intake and any problems when they were 30 years old.
Of the 3,895 men and 4,148 women who reported drinking alcohol as adults, those with higher average scores on childhood mental ability tests were also more likely to have indications of alcohol problems in adulthood. (Image courtesy: Lacey & Cielle, under Creative Commons)
The association between higher mental ability in childhood and adulthood problem drinking became stronger among women than among men after allowing for socioeconomic factors such as social class during both childhood and adulthood.
Specifically, for every 15-point increase in childhood mental ability score, the likelihood of drinking problems increased 1.38 times for women, and 1.17 times for men. [source]
The researchers were rather surprised by the results, which makes me wonder if they’re being just a little stereotypically biased. Because, as we all know, smart people don’t ever end up with any kind of substance issue. (scoff) (hat tip to Duane Storey for pointing the story out and coining the witty title)