Friday, March 29, 2013

Blog Assignment 7


My current problem definition is the following: The incidence of anorexia nervosa and bulimia has increased over the past 10 years in American women between ages 12 and 25. It is through both passive and active surveillance that eating disorders are assessed. According to the American Academy of Pediatrics, pediatricians, who record their patients’ height and weight through yearly appointments, are often the ones who identify a case of an eating disorder in their patient. Also, those suffering from an eating disorder often end up in the hospital, and this is documented by hospital records. Thus, in this way, the number of cases is not sought out, but rather is collected through both pediatrician and hospital records. Additionally, as eating disorders became a pressing public health concern, active surveillance has additionally taken place. Surveys or questionnaires are sometimes distributed to high school students to assess the prevalence of eating disorders in certain communities, for example. Also, studies have followed a specific group of population to watch for trends of eating disorders and their development. 
According to epidemiologic studies cited by the American Academy of Pediatrics, the overall number of cases of eating disorders in adolescents has been on a steady increase since the 1950s. It is estimated that 0.5% of adolescent females in the US have anorexia nervosa, and that 1% to 5% have bulimia nervosa. In a specific study conducted in Minnesota, an overall age-adjusted incidence rate for females coming out at 14.6 per 100,000 person-years during a 50-year period, 1935 through 1984. This, however, does not include a large number of cases of which show the physical and psychologic consequences, but do not meet all of the criteria in the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV) for anorexia or bulimia nervosa. According to an epidemiologic study conducted by Stanford University and Lucile Packard Children’s Hospital, rates are highest in females in the age group 15 – 19, and that prevalence has increased from 1935 to 1999 in females 15 – 24. Additionally, studies, such as a ten-year follow up conducted by the Department of Psychiatry in Minnesota, show that there is a very high frequency of relapse and a 13-fold increase in mortality for those suffering from eating disorders.
The rates and indicators listed above have come extremely reliable sources, such as the American Academy of Pediatrics and Stanford University. The majority of epidemiologic studies cited in these sources have come through passive surveillance, mainly through the analysis of hospital records, pediatrician documents, and physical evaluations. These sources do include some studies that have female high school students reporting their weight, behavior, eating habits, etc. as well, which always carries the weakness of not being 100% trustworthy and reliable. Girls may lie or withhold information that could greatly affect the outcomes of these experiments. Though, the majority of information does come from medical records, which are very reliable. In addition, however, it has been stated numerous times in these studies that girls may not fully meet the criteria for anorexia or bulimia nervosa, and thus are not counted in statistics, but do show many of the physical and psychological symptoms and consequences of such a disorder.
           


Works Cited:

David S. Rosen. From the American Academy of Pediatrics: Clinical Report: Identification and

Management of Eating Disorders in Children and Adolescents. Pediatrics 2010; 126:6

1240-1253; published ahead of print November 29, 2010.


E. D. Eckert, K. A. Halmi, P. Marchi, W. Grove, R. Crosby. Ten-year follow-up of anorexia

nervosa: clinical course and outcome. Psychol Med. 1995 January; 25(1): 143–156.


Lucas, Alexander R., MD, and Mary Beard, MPH. 50-Year Trends in the Incidence of Anorexia

Nervosa in Rochester, Minn.: A Population-Based Study. PsychiatryOnline. American

Psychiatric Publishing, July 1991. Web. 29 Mar. 2013.



epidemiology, and prognosis (2010) Nutrition in Clinical Practice, 25 (2) , pp. 110-115.






2 comments:

  1. Hi Alyssa,

    Nice blog this week. A couple comments:

    1. You've done a really great job with your citations at the end of the blog, but remember to cite your work internally (aka within your document as well). Usually this is done by numbers if MLA format, or by denoting the last name of the author and date for APA format. So, really, it just shows which references go with which statements of fact if your text. Here's' a website that might help:http://owl.english.purdue.edu/owl/resource/949/01/

    2. You have talked about the incidence of the disease, but what are the indicators of an eating disorder that can be measured? You allude to this, but it's good to talk about it - so, weight, thoughts about food, body image, etc. Are these direct or indirect? What others can be used to screen or diagnose the disorders? You may want to explain the criteria that must be met for a diagnosis of anorexia or bulemia.

    You did a great job explaining the magnitude of the problem and the style of your citations is great.

    Erin

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  2. You did a a great job in explaining statistics about your topic. It is true that there are a great number of ways to collect data and analyze it. I find it interesting that you mentioned that high school aged girls lie about the disorder, which is very true and does effect the information.
    Nice work!

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