Prevalence and Incidence of Generalized anxiety disorder

Prevalance of Generalized anxiety disorder:

4 million adult Americans (NIMH); 2.8% adults (NIMH); estimated 3.4% adults (USSG) ... see also overview of Generalized anxiety disorder.

Prevalance Rate:

approx 1 in 68 or 1.47% or 4 million people in USA [Source statistic for calcuation: "4 million adult Americans (NIMH); 2.8% adults (NIMH); estimated 3.4% adults (USSG)" -- see also general information about data sources]

Generalized anxiety disorder Prevalence: Book Excerpts

• Causes and incidence - Generalized anxiety disorder
• Causes and incidence - Major depression

Incidence (annual) of Generalized anxiety disorder:

2.8% of the adult U.S. population (NIMH) ... see also overview of Generalized anxiety disorder.

Incidence Rate:

approx 1 in 35 or 2.80% or 7.6 million people in USA [Source statistic for calcuation: "2.8% of the adult U.S. population (NIMH)" -- see also general information about data sources]

Incidence extrapolations for USA for Generalized anxiety disorder:

7,615,999 per year, 634,666 per month, 146,461 per week, 20,865 per day, 869 per hour, 14 per minute, 0 per second. [Source statistic for calculation: "2.8% of the adult U.S. population (NIMH)" -- see also general information about data sources]

Prevalance of Generalized anxiety disorder:

GAD affects about 4 million adult Americans¹ and about twice as many women as men. (Source: excerpt from Anxiety Disorders: NIMH)

Incidence of Generalized anxiety disorder:

About 2.8% of the adult U.S. population ages 18 to 54 - approximately 4 million Americans - has GAD during the course of a given year. (Source: excerpt from Facts about Generalized Anxiety Disorder: NIMH)

Prevalence/Incidence of Generalized anxiety disorder: 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 Generalized anxiety disorder.

Generalized anxiety disorder: Causes and incidence
(Professional Guide to Diseases (Eighth Edition))

Theorists share a common premise: Conflict, whether intrapsychic, sociopersonal, or interpersonal, promotes an anxiety state.

Generalized anxiety disorder has a 1-year prevalence range from 3% to 8%. It’s more common in women than in men, and half of all cases begin in childhood or adolescence.

» READ BOOK EXCERPT ONLINE »

Source: Professional Guide to Diseases (Eighth Edition), 2005

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 Generalized anxiety disorder usually refers to the estimated population of people who are managing Generalized anxiety disorder at any given time. The term 'incidence' of Generalized anxiety disorder refers to the annual diagnosis rate, or the number of new cases of Generalized anxiety disorder 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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