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A threefold variation in the percentage of patients admitted to hospital who spend 90% of their time on a stroke unit; A fourfold variation in emergency asthma admissions for children and young adults; A sixfold variation in provision of hip replacement per 1,000 people in need; A twofold variation in cancer inpatient expenditure per 1,000 ...
The Roper, Logan and Tierney model of nursing (originally published in 1980, and subsequently revised in 1985, 1990, 1998 and the latest edition in 2000) is a model of nursing care based on activities of living (ALs).
AERD affects an estimated 0.3–0.9% of the general population in the US, including around 7% of all asthmatics, about 14% of adults with severe asthma, and ~5-10% of patients with adult onset asthma. [2] [3] [8] AERD is uncommon among children, with around 6% of patients, predominantly female, reporting disease onset during childhood. [9]
In 2000-2001 asthma prevalence was monitored at 6.5%; by 2010-2011 a 4.3% increase was shown, with asthma prevalence totaling 10.8% of Canada's population. [29] Furthermore, asthma prevalence varies among the provinces of Canada; the highest prevalence is Ontario at 12.1%, and the lowest is Nunavut at 3.8%. [29]
Five-year survival rates can be used to compare the effectiveness of treatments. Use of five-year survival statistics is more useful in aggressive diseases that have a shorter life expectancy following diagnosis, such as lung cancer, and less useful in cases with a long life expectancy, such as prostate cancer.
The airways of asthma patients are "hypersensitive" to certain triggers, also known as stimuli (see below). (It is usually classified as type I hypersensitivity .) [ 4 ] [ 5 ] In response to exposure to these triggers, the bronchi (large airways) contract into spasm (an "asthma attack").
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The epidemiology of chronic disease is diverse and the epidemiology of some chronic diseases can change in response to new treatments. In the treatment of HIV, the success of anti-retroviral therapies means that many patients will experience this infection as a chronic disease that for many will span several decades of their chronic life. [32]