Prevalence and Incidence of Depression
Prevalance of Depression:
estimated 5.3% adults (USSG); 17 million people; approximately 4% of adolescents get seriously depressed (NIMH); annually 12% of women ; 7% of men; lifetime risk of an episode for women 20%. 3-4 million men USA. ... see also overview of Depression.
Prevalance Rate:
approx 1 in 18 or 5.30% or 14.4 million people in USA [Source statistic for calcuation: "estimated 5.3% adults (USSG); 17 million people; approximately 4% of adolescents get seriously depressed (NIMH); annually 12% of women ; 7% of men; lifetime risk of an episode for women 20%. 3-4 million men USA." -- see also general information about data sources]
Prevalance of types of Depression:
For details see prevalence of types of Depression analysis; summary of available prevalence data:
Depression Prevalence: Book Excerpts
Incidence of types of Depression:
For details see incidence of types of Depression analysis; summary of available incidence by type data:
Lifetime risk for Depression:
7.9-8.6% of adults will have major depression during their lifetime in Canada (Health Canada)
Prevelance of Depression discussion:
Depression in Children and Adolescents A Fact Sheet for Physicians: NIMH (Excerpt)
A number of epidemiological studies have reported that up to 2.5
percent of children and up to 8.3 percent of adolescents in the U.S.
suffer from depression.4
An NIMH-sponsored study of 9- to 17-year-olds estimates that the
prevalence of any depression is more than 6 percent in a 6-month period,
with 4.9 percent having major depression.5
In addition, research indicates that depression onset is occurring earlier
in life today than in past decades.6
A recently published longitudinal prospective study found that early-onset
depression often persists, recurs, and continues into adulthood, and
indicates that depression in youth may also predict more severe illness in
adult life.3
Depression in young people often co-occurs with other mental disorders,
most commonly anxiety, disruptive behavior, or substance abuse disorders,
7
and with physical illnesses, such as diabetes.8
(Source: excerpt from Depression in Children and Adolescents A Fact Sheet for Physicians: NIMH)
Depression Research: NIMH (Excerpt)
In a given year, between one and two percent of people over age 65
living in the community, i.e., not living in nursing homes or other
institutions, suffer from major depression and about two percent have
dysthymia. Depression, however, is not a normal part of aging. (Source: excerpt from Depression Research: NIMH)
Depression Research: NIMH (Excerpt)
Additionally, recent NIMH studies show that 13 to 27 percent of older
adults have subclinical depressions that do not meet the diagnostic
criteria for major depression or dysthymia but are associated with
increased risk of major depression, physical disability, medical
illness, and high use of health services. Subclinical depressions cause
considerable suffering, and some clinicians are now beginning to recognize
and treat them.
(Source: excerpt from Depression Research: NIMH)
If You're Over 65 and Feeling Depressed Treatment Brings New Hope: NIMH (Excerpt)
Nonetheless,
among people 65 and over, as many as 3 out of 100 suffer from clinical
depression. It can be serious and can even lead to suicide.
(Source: excerpt from If You're Over 65 and Feeling Depressed Treatment Brings New Hope: NIMH)
Older Adults Depression and Suicide Facts: NIMH (Excerpt)
An estimated 6 percent of Americans ages 65 and older in a given year,
or approximately 2 million of the 34 million adults in this age group in
1998, have a diagnosable depressive illness (major depressive disorder,
bipolar disorder, or dysthymic disorder). (Source: excerpt from Older Adults Depression and Suicide Facts: NIMH)
The Numbers Count: NIMH (Excerpt)
Major depressive disorder affects approximately 9.9 million
American adults,5
or about 5.0 percent of the U.S. population age 18 and older in a
given year. 1
(Source: excerpt from The Numbers Count: NIMH)
What to do When a Friend is Depressed: NIMH (Excerpt)
Depression affects people of all ages but is less common for teenagers
than for adults. Approximately 3 to 5 percent of the teen population
experiences clinical depression every year. That means among 25 friends, 1
could be clinically depressed. (Source: excerpt from What to do When a Friend is Depressed: NIMH)
Prevelance statistics for Depression:
The following statistics relate to the prevalence of Depression:
- 6.5% of women have a major depressive disorder in the US (National Institute of Mental Health, NIH)
- 3.3% of men have a major depressive disorder in the US (National Institute of Mental Health, NIH)
- 6.7 million women have a major depressive disorder in the US 1998 (National Institute of Mental Health, NIH)
- 3.2 million men have a major depressive disorder in the US 1998 (National Institute of Mental Health, NIH)
- 4-5% of population have major depression in Canada (National Population Health Survey, Health Canada)
- more statistics...»
More Statistics about Depression:
Hospitalization statistics
Cost statistics
All statistics for Depression
Medical news summaries about prevalence of Depression:
The following medical news items are relevant to the prevalence of Depression:
Prevalence/Incidence of Depression: Online Medical Books
16 MEDICAL BOOKS ONLINE!
Review excerpts from medical books online, free, without registration,
for more information about the prevalence and/or incidence of Depression.
Major depression:
Causes and incidence
(Professional Guide to Diseases (Eighth Edition))
The multiple causes of depression aren’t completely understood. Current research suggests possible genetic, familial, biochemical, physical, psychological, and social causes. Psychological causes (the focus of many nursing interventions) may include feelings of helplessness and vulnerability, anger, hopelessness and pessimism, and low self-esteem. They may be related to abnormal character and behavior patterns and troubled personal relationships. In many cases, the history identifies a specific personal loss or severe stressor that probably interacts with the person’s predisposition to provoke major depression.
Depression may be secondary to a specific medical condition — for example, metabolic disturbances, such as hypoxia and hypercalcemia; endocrine disorders, such as diabetes and Cushing’s syndrome; neurologic diseases, such as Parkinson’s and Alzheimer’s diseases; cancer (especially of the pancreas); viral and bacterial infections, such as influenza and pneumonia; cardiovascular disorders, such as heart failure; pulmonary disorders, such as chronic obstructive lung disease; musculoskeletal disorders, such as degenerative arthritis; GI disorders, such as irritable bowel syndrome; genitourinary problems, such as incontinence; collagen vascular diseases, such as lupus; and anemias.
Drugs prescribed for medical and psychiatric conditions as well as many commonly abused substances can also cause depression. Examples include antihypertensives, psychotropics, opioid and nonopioid analgesics, antiparkinsonian drugs, numerous cardiovascular medications, oral antidiabetics, antimicrobials, steroids, chemotherapeutic agents, cimetidine, and alcohol. Depression occurs in up to 18 million Americans, affecting all racial, ethnic, and socioeconomic groups. It affects both sexes, but is more common in women.
» READ BOOK EXCERPT ONLINE »
Source: Professional Guide to Diseases (Eighth Edition), 2005
About prevalence and incidence statistics:
The term 'prevalence' of Depression usually refers to the estimated population
of people who are managing Depression at any given time.
The term 'incidence' of Depression refers to the annual diagnosis rate,
or the number of new cases of Depression diagnosed each year.
Hence, these two statistics types can differ:
a short-lived disease like flu can have high annual incidence but low prevalence,
but a life-long disease like diabetes has a low annual incidence but high prevalence.
For more information see about prevalence and incidence statistics.
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