Basic Summary for Asthma


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Main name of condition: Asthma
Other names or spellings:


What is Asthma?
  Brief description of Asthma: Repeated attacks of breathing difficulty.
  Parent types of Asthma: Immune disorders, Allergic Disorders, Respiratory conditions, Lung conditions, Adolescent conditions, Under-diagnosed conditions, Common Conditions
  Organs Affected by Asthma: lung
How many people get Asthma?
  Prevalance of Asthma: 6.4% USA (NIAID); 17 million Americans (NIAID) including 5 million children; 8.1 million children (NHIS-97), 51 per 1000 - NHIS95; 14.5 million; 5% of population (NWHIC); 14.9 million in 1995 (NHLBI)
  Prevalance Rate of Asthma: approx 1 in 15 or 6.40% or 17.4 million people in USA [about data]
  Prevalance of Asthma: Asthma affects an estimated 17 million Americans or 6.4 percent of the U.S. population. Children account for 4.8 million of the nation's asthma sufferers.1 ... Approximately 5% of the population have asthma, but the basic cause of asthma is not yet understood.2
Who gets Asthma?
  Gender Profile for Asthma: Women 3:1.
  Race Profile for Asthma: Asthma affects slightly more African Americans (5.8 percent) than Americans of European descent (5.1 percent). In 1993, however, blacks were 3 to 4 times more likely than whites to be hospitalized for asthma.1
How serious is Asthma?
  Prognosis of Asthma: Almost all asthma patients can become free of symptoms with proper treatment. Patients and their families should expect nothing less.3
  Deaths for Asthma: 5,637 deaths in 1995 (NHLBI); 4,657 deaths reported in USA 1999 (NVSR Sep 2001); approximately 5,000 deaths annually (NIAID)
  Complications of Asthma: see complications of Asthma
What causes Asthma?
  Causes of Asthma: see causes of Asthma
  Risk factors for Asthma: see risk factors for Asthma
What are the symptoms of Asthma?
  Symptoms of Asthma: see symptoms of Asthma
How is it treated?
  Treatments for Asthma: see treatments for Asthma
  Prevention of Asthma: see prevention of Asthma
Society issues for Asthma
  Costs of Asthma: $14.0 billion with $9.4b direct, $2.7b morbidity, $1.9b mortality (NHLBI 2002)
  Costs of Asthma: In 1990, costs related to asthma were estimated to total $6.2 billion; the projected cost of asthma in this country for the year 2000 is expected to double to $14.5 billion. 4
  Hospitalizations for Asthma: 478,000 (NHLBI 1999)
  Hospitalization statistics for Asthma: The following are statistics from various sources about hospitalizations and Asthma:
  • 500,000 hospitalizations annually in the US (Mayo Clinic)
  • 1.5 million ED visits in 1995 (NHLBI)
  • 201 males per 100,000 population are hospitalised with asthma in Australia 2001-2002 (Australia’s Health 2004, AIHW)
  • 217 females per 100,000 population are hospitalised with asthma in Australia 2001-2002 (Australia’s Health 2004, AIHW)
  • 0.49% (62,273) of hospital consultant episodes were for asthma in England 2002-03 (Hospital Episode Statistics, Department of Health, England, 2002-03)
  • 83% of hospital consultant episodes for asthma required hospital admission in England 2002-03 (Hospital Episode Statistics, Department of Health, England, 2002-03)
  • 45% of hospital consultant episodes for asthma were for men in England 2002-03 (Hospital Episode Statistics, Department of Health, England, 2002-03)
  • 55% of hospital consultant episodes for asthma were for women in England 2002-03 (Hospital Episode Statistics, Department of Health, England, 2002-03)
  • 96% of hospital consultant episodes for asthma required emergency hospital admission in England 2002-03 (Hospital Episode Statistics, Department of Health, England, 2002-03)
  • 3.2 days was the mean length of stay in hospitals for asthma in England 2002-03 (Hospital Episode Statistics, Department of Health, England, 2002-03)
  • 2 days was the median length of stay in hospitals for asthma in England 2002-03 (Hospital Episode Statistics, Department of Health, England, 2002-03)
  • 30 was the mean age of patients hospitalised for asthma in England 2002-03 (Hospital Episode Statistics, Department of Health, England, 2002-03)
  • 46% of hospital consultant episodes for asthma occurred in 15-59 year olds in England 2002-03 (Hospital Episode Statistics, Department of Health, England, 2002-03)
  • 8% of hospital consultant episodes for asthma occurred in people over 75 in England 2002-03 (Hospital Episode Statistics, Department of Health, England, 2002-03)
  • 1% of hospital consultant episodes for asthma were single day episodes in England 2002-03 (Hospital Episode Statistics, Department of Health, England, 2002-03)
  • 0.31% (164,826) of hospital bed days were for asthma in England 2002-03 (Hospital Episode Statistics, Department of Health, England, 2002-03)
  • 0.076% (9,643) of hospital consultant episodes were for status asthmaticus in England 2002-03 (Hospital Episode Statistics, Department of Health, England, 2002-03)
  • 77% of hospital consultant episodes for status asthmaticus required hospital admission in England 2002-03 (Hospital Episode Statistics, Department of Health, England, 2002-03)
  • 45% of hospital consultant episodes for status asthmaticus were for men in England 2002-03 (Hospital Episode Statistics, Department of Health, England, 2002-03)
  • 55% of hospital consultant episodes for status asthmaticus were for women in England 2002-03 (Hospital Episode Statistics, Department of Health, England, 2002-03)
  • 98% of hospital consultant episodes for status asthmaticus required emergency hospital admission in England 2002-03 (Hospital Episode Statistics, Department of Health, England, 2002-03)
  • 3.9 days was the mean length of stay in hospitals for status asthmaticus in England 2002-03 (Hospital Episode Statistics, Department of Health, England, 2002-03)
  • 2 days was the median length of stay in hospitals for status asthmaticus in England 2002-03 (Hospital Episode Statistics, Department of Health, England, 2002-03)
  • 29 was the mean age of patients hospitalised for status asthmaticus in England 2002-03 (Hospital Episode Statistics, Department of Health, England, 2002-03)
  • 52% of hospital consultant episodes for status asthmaticus occurred in 15-59 year olds in England 2002-03 (Hospital Episode Statistics, Department of Health, England, 2002-03)
  • 7% of hospital consultant episodes for status asthmaticus occurred in people over 75 in England 2002-03 (Hospital Episode Statistics, Department of Health, England, 2002-03)
  • 0% of hospital consultant episodes for status asthmaticus were single day episodes in England 2002-03 (Hospital Episode Statistics, Department of Health, England, 2002-03)
  • 0.055% (28,718) of hospital bed days were for status asthmaticus in England 2002-03 (Hospital Episode Statistics, Department of Health, England, 2002-03)
  • Hospitalization statistics in Australia:
    • Hospitalisations for asthma at public hospitals occurred in 12.1 people per 10,000 population in Australia 2001-02 (Australian Hospital Data, AIHW, Australia, 2001-02)
    • 2.6 days was the mean length of stay in hospitals for asthma in public hospitals in Australia 2001-02 (Australian Hospital Data, AIHW, Australia, 2001-02)

  Physician office visits for Asthma: 9,498,000 (NHLBI 1999)
  Physician office visit statistics for Asthma: The following are statistics from various sources about physician office visits and Asthma:
  • 11.3 million people visited a physicians office for asthma in the US 2001 (National Ambulatory Medical Care Survey: 2001 Summary, NCHS, CDC)
  • 11,280,000 people visited a physician’s office for asthma in the US 2001 (National Hospital Ambulatory Medical Care Survey: 2001)
  • 1.9 million people visited the emergency hospital department for asthma in the US 2002 (National Ambulatory Medical Care Survey: 2002 Summary, NCHS, CDC)
  • 1.2 million people visited a hospital outpatient department for asthma in the US 2002 (National Ambulatory Medical Care Survey: 2002 Summary, NCHS, CDC)


Footnotes:
1. excerpt from Asthma A Concern for Minority Populations, NIAID Fact Sheet: NIAID
2. excerpt from ASTHMA: NWHIC
3. excerpt from NHLBI - Your Asthma Can Be Controlled: NHLBI
4. excerpt from Facts About Asthma: CDC-OC

Last revision: April 9, 2003

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