Percentage of 14- to 25-year-olds who experienced a Major Depressive Episode (MDE) in their lifetime and in the past year, by sex, year, and age group: 2006 through 2009

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Table 47.	Percentage of 14- to 25-year-olds who experienced a Major Depressive Episode (MDE) in their lifetime and in the past year, by sex, year, and age group: 2006 through 2009

Year and age group	Total		Male		Female
Year and age group	Lifetime	Past year	Lifetime	Past year	Lifetime	Past year
2006
Total	14.8	9.0	9.6	5.7	20.1	12.3
14–17	14.8	9.2	8.2	4.5	21.7	14.0
18–20	13.0	8.5	8.8	5.9	17.6	11.4
21–25	15.9	9.1	11.5	6.7	20.2	11.5

2007
Total	14.9	9.4	9.9	5.9	20.0	12.9
14–17	15.3	10.1	9.0	5.6	21.9	14.8
18–20	12.9	8.0	9.0	5.5	17.1	10.6
21–25	16.0	9.7	11.5	6.6	20.4	12.8

2008
Total	14.4	9.1	9.0	5.3	19.9	13.0
14–17	15.0	9.8	7.9	4.8	22.3	15.0
18–20	13.1	8.9	8.2	5.8	18.3	12.2
21–25	14.7	8.7	10.4	5.4	18.9	11.9

2009
Total	14.4	8.5	9.9	5.7	19.1	11.4
14–17	15.3	9.6	10.2	6.1	20.8	13.3
18–20	13.3	7.8	8.6	4.9	18.4	11.0
21–25	14.4	8.1	10.5	5.9	18.1	10.2

NOTE: Major Depressive Episode (MDE) is defined as a period of at least 2 weeks when a person experiences a depressed mood or loss of interest or pleasure in daily activities, plus at least four additional symptoms of depression (such as problems with sleep, eating, energy, concentration, and feelings of self-worth) as described in the fourth edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-IV) (American Psychiatric Association 1994).
SOURCE: U.S. Department of Health and Human Services, Substance Abuse and Mental Health Services Administration, National Survey on Drug Use and Health (NSDUH), 2006–09. Retrieved May 2, 2009, from http://oas.samhsa.gov/nhsda.htm.