Numbers and percentages of cases and controls with a first-degree relative (mother, father, siblings, or children) with history of mood disorders by demographic and behavioral characteristics in the EAGLE Study, Italy, 2002–2005.

Abbreviation: EAGLE, Environment And Genetics in Lung cancer Etiology.aMedian (inter-quartile range).b“Non-educated” subjects are those who did not complete the elementary school.Note: Numbers of participants may not sum to total due to missing data.