How is epidemiology of depression?

20% of primary care pt have depressive symptoms, 2 time more in females, 2/3 have multiple episodes, each episode increases the risk of recurrence. Prevalence is unrelated to race, education , income or civil status, lifetime rates vary across countries (1.5-20%) Lifetime prevalence (16.2%) and 12 months (6-6%) Nationally, 1/6 met criteria for at least one year DSM V CIDI disorder, 27% serious and 36% moderate, MDD 5% 11% 1 year disorders got tx, 2/3 of tx are given by GP not psychiatrist Lifetime prevalence in Lebanon 26% (anxiety 16% mood 13% and substance use 2%) delay very much between onset and tx (6-28 years), war increased risk of first onset anxiety and mood disorder