Nobody downloaded yet


Comments (0) Cite this document
Two tests A and B are available to diagnose a particular communicable disease that is usually fatal if not diagnosed and treated. Although some patients may require long term treatment, approximately 80% can be cured at modest cost with appropriate intervention. Tests A and B…
Download full paperFile format: .doc, available for editing
GRAB THE BEST PAPER94.8% of users find it useful
Read TextPreview


Download file to see previous pages Specific Tests are required more when a rare disease in question. However for such a communicable disease, early detection is a must and hence the more sensitive test i.e Test B should be chosen.
2. Physicians practising in the general community often find that on the average chronic debilitating conditions such as multiple sclerosis or connective tissue diseases lead to less disability and fewer complications than they were led to expect from reading reports in medical literature on the natural history of these conditions. Why do you think this is the case?
Ans 2. The chronic debilitating conditions mentioned in these diseases is a subjective and dependant variable concern. Multiple factors affect the incidence and complexity of the above mentioned diseases.
Or it could be the case that, Medical awareness in the community is high so these conditions get cured before reaching an advance stage. Thus all this could contribute to the fact that these chronic conditions seem to occur with less disability and fewer complications than they were led to expect from reading reports in medical literature on the natural history of these conditions.
3. Surgeons at hospital A report that mortality rate at the end of one year follow up period after a coronary by-pass operation is 15%. At hospital B the surgeons report a 1-year mortality rate of only 8% after the same procedure. What would you find out before concluding that surgeons at hospital B perform the operation with greater skill?
Referral Bias is an important factor to be considered while determining the skill in the above case. A might be getting more complicated disease cases. Even for the same disease, it might get a disease in a more advanced stage. Thus even for the same number of cases, the mortality rate of the two hospitals is not comparable.
4. The following table shows data from a ...Download file to see next pagesRead More
Cite this document
  • APA
  • MLA
(“EPIDEMIOLOGY and BIOSTATISTICS Essay Example | Topics and Well Written Essays - 3250 words”, n.d.)
Retrieved from
(EPIDEMIOLOGY and BIOSTATISTICS Essay Example | Topics and Well Written Essays - 3250 Words)
“EPIDEMIOLOGY and BIOSTATISTICS Essay Example | Topics and Well Written Essays - 3250 Words”, n.d.
  • Cited: 0 times
Comments (0)
Click to create a comment or rate a document


Epidemiology and Biostatistics

...? Epidemiology and Biostatistics Randomized controlled trials are regarded as the most rigorous means of establishing whether there is an existence of a cause-effect connection between treatment and result and for examining a treatment’s cost effectiveness. However, the several significant features that they have include: The allocation to the intervention groups is done randomly; trialists together with patients should stay uninformed about the kind of treatment that was given to them until the whole processes is complete, even though double blind studies as such are not normally appropriate of practicable. The treatment of all intervention groups is done identically apart from the experimental treatment...
3 Pages(750 words)Assignment


...? EPID: Epidemiology B QUESTION 9 marks) A study aimed to assess the prevalence of anemia in children from 1 to 2 years in a country. Haemoglobin was measured by a Hemocue photometer and anaemia was defined as haemoglobin less than 8 g/100 mL blood. Duration of breastfeeding was determined by asking parents or carers. There were 4500 mothers or careers and their children who were asked to participate in the survey, of whom 457 refused to participate, and 243 had an incomplete questionnaire and/or test results. Among 1300 children breastfeed for less than 1 year, 520 had anaemia compared to 500 children with anaemia in the group of 2500 children breastfeed for one year or more (note: these are hypothetical figures only). Answer... or received...
3 Pages(750 words)Assignment


...? Understanding Risk and Causal Factors Attributing to Risk In Epidemiology The was concerned about the concept of relative risk. Risks in epidemiology help to compare disease or events outcome. The various types of risks that are analyzed in epidemiology are: Risk Difference: also known as excess risk is defined as the difference in rates of occurrence between exposed and non exposed groups in the population and is a useful measure of the extent of public health problem caused by the exposure.(Aherns et al,2005) Attributable fraction (exposed): also known as the etiological fraction is defined as the proportion of all cases that can be attributed to a particular exposure. One can...
14 Pages(3500 words)Assignment


...Epidemiology EPIDEMIOLOGY Epidemiology can be defined as the study of determinants and distribution of health related events or states, which also include disease, and the use of this study to control health problems like diseases. Various methods can be utilized to perform epidemiological investigations. For example, descriptive studies and surveillance can be used for the study of distribution; with analytical studies utilized for the study of determinants. Major areas of study are investigation of outbreaks, screening and surveillance of disease, bi monitoring, and comparison of clinical trial treatment effects. The professionals in this field rely on...
4 Pages(1000 words)Essay


...BIOSTATISTICS DENT70001: MID-TERM ASSIGNMENT Assignment March Question a) By saying “The P value greater than 0.05 was considered to be significant” (p. 771) the author meant that the observed evidence was enough to make a decision that the there was no relationship between periodontal disease during pregnancy and preeclampsia. In statistics, P values less than 0.05 (or any other level of significance being used) are usually considered statistically significant (Lawrence, Klimberg, & Lawrence 2009). The author goes on to indicate, “mean of clinical attachment loss was not significantly different between two groups (P = 0.16),” (Yaghini et al. 2012, p. 772). Here, the P value is greater than 0.05, and yet the authors say... DENT70001: MID-TERM ...
4 Pages(1000 words)Essay


...Epidemiology Epidemiology Foodborne illness refers to the illness resulting from consumption of contaminated food, or foodthat with parasites, bacteria and viruses. Such illnesses result from consumption of beverages or food that contains disease causing pathogens. Most of the foodborne illnesses arise from improper handling, storage of preparation of food. Also, foodborne illnesses may result from toxins which affect the environment (Lindell & David, 2001). The consensus by the health community entails advocating for effective protection measures against the spread of foodborne diseases. This entails food safety to ensure monitoring of food to avoid causing foodborne diseases. Therefore, the research...
2 Pages(500 words)Essay


...Question a. The odd’s ratio for association between the risk of heart disease and smoking is calculated as follows: Interpretation: The odd’s ratio for the relationship between the risk of heart disease and smoking is 1.55 which is slightly over the 1.0 value. Since the odd ratio measures the relationship between the risk of heart disease and exposure to smoking, we can assume that the study generating these results is not biased and hence infer that the risk of a heart disease is 1.55 times for cigarette smokers than for non smokers. Therefore we can conclude that there is significant association between the two attributes and that there is 1.55 fold increase in odd’s associated with smokers. b. s.e. (OR) = Hence the standard... a. The...
5 Pages(1250 words)Essay


...SARS Epidemic in Asia SARS Epidemic in Asia Severe acute respiratory syndrome (SARS) is one of the viral respiratory illnesses across the globe. Like common cold, it belongs to the coronavirus family. Voigt in his article of Hong Kong and SARS explains a study from the scientist which proves that the disease jumped from the civet cats, a delicacy in southern china to human beings. Also, it has been linked to bats. Some of the notable symptoms that are experienced initially are flu-like, and this may include cough, myalgia, sore throat, fever and lethargy symptoms. This paper discusses the SARS epidemic in Asia. It also discusses the three parts of the epidemiological triangle in a clear and outright way. Voigt...
3 Pages(750 words)Assignment

Epidemiology to control it. It is their obligation to make sure no more people are affected and avoid similar outbreaks from happening in the future. In the above case, I would rush to a nearby health center to make the officials aware of the problem. The food born outbreak really requires a public health response. As the main role or responsibility of public health officials is to collect information on any serious outbreak, it will be so helpful if information on the above case, food born outbreak among the children is examined. There is where the woman can get to know what the really cause or genesis of the problem was. The type of emergency described in the above case is an epidemiological investigation. In this...
4 Pages(1000 words)Essay


...Topic: Epidemiology Purpose of the study Wood dust is one of the common forms of occupational exposures worldwide andinvolves millions of workers. The dust particles differ in terms of size and chemical component depending on the type of tree. They also differ according to the type of operation performed on the wood which may include shattering wood cells during sanding operations that may result in the production of finer particle choices than in the case of chipping in sawing and milling industries. Although smoking is among the most common causes of lung cancer, environmental exposure also has a great contribution to the causes of lung cancer. Various studies have been performed in order to determine the risk involved...
3 Pages(750 words)Article
sponsored ads
We use cookies to create the best experience for you. Keep on browsing if you are OK with that, or find out how to manage cookies.

Let us find you another Essay on topic EPIDEMIOLOGY and BIOSTATISTICS for FREE!

Contact Us