"And it was most common in children under 2."

It's relatively common in babies under 1 month old.

Depression is significantly more common in boys under the age of 10.

Emotional problems were also more common among the unemployed and people with household incomes under $25,000.

Questionnaires in the 1970s found that Catholicism was especially common among young people under 30.

Pain and tenderness is common under the ball of the foot.

This was most common in females and persons under 25.

Such courtesies will be less common under a Democratic chairman.

Cradle cap is common in babies under 3 months old.

Dementia is much less common under 65 years of age.