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Ento. Bugs. Insects. 
I think that's probably the easiest way to go about it. Try to find common diseases that clearly represent the different modes of transmission and just devote a small section of notes to them. The more familiar you become with different types of diseases the easier this section will be!SOnerd wrote:Hey guys!
So at Regionals, they had a section of the test that gave us some modes of transmission (Waterborne, airborne, etc) and they asked us to match them to certain diseases. Is there a certain way to attack these types of sections on tests? Should I just add a list of examples for each type to my notes?
Also, I do feel like it is my duty to share this interesting picture that my partner found:[img]https://c2.staticflickr.com/6/5468/7085379219_5053980238.jpg[/img]
Just a warning about terminology: breast cancer is not the exposure in this example, it is the outcome. Calcium supplements are the exposure.acornbob wrote:use of calcium cases non cases
supplements
no 70 25
yes 30 75
Odds of exposure of cases = 70/30 = 2.3
Odds of exposure of non-cases = 25/75 = .33
Odds Ration = Odds of exposure of casesOdds of exposure of non-cases= 2.3/.33 = 6.97
The odds of exposure to Breast Cancer was over 6.97 times higher among cases who did not take Calcium supplement when compared to the group who took the supplement.
Can you make a two by two tabs like this?
Please suggest some study links? What are some useful study tips also?
Thanks
Exactly right on the odds ratio, but another caution: you can't go from odds ratio to "times more likely" as easily as you can with risk ratio. Remember that if you do odds ratio on the roll of two dice, where one or two count as hits for the first but only one is a hit for the second, your odds ratio will actually be 2.5 (2:4 over 1:5). In reality, though, the event is only twice as likely, not 2.5 times as likely.UTF-8 U+6211 U+662F wrote:Breast Cancer and Calcium Tablets:
Cases Controls
Exposed 70 25
Unexposed 30 75
Odds of exposure of cases = 70/30 = 2.3
Odds of exposure of non-cases = 25/75 = .33
Odds Ratio = Odds of exposure of cases/Odds of exposure of non-cases= 2.3/.33 = 6.97
The odds of exposure to calcium tablets of cases-patients was 6.97 times those of controls, therefore, case-patients were 5.97 times more likely to have used calcium tablets than controls (not sure how accurate that is).
Odds ratio = OR = ad/bc, calculates correlation, not direct causation (I'm not trying to criticize anyone here).
Relative risk = RR = AR for exposed/AR for unexposed = [a/(a+b)]/[c/(c+d)], measures the relative risk of a specific exposure
Hope that helped!
Is there a good place where I could find (somewhat) comprehensive lists of each type? I've found one for foodbourne on the CDC website, but idk if it's accurate.UTF-8 U+6211 U+662F wrote:You should do representatives for each group of illnesses.
Food-borne: Salmonellosis, E. coli infections, etc.
Water-borne: Giardiasis, Cholera, etc.
Airborne: Tuberculosis, Measles, etc.
Sexual: Hepatitis, Herpes, Cervical Cancers, etc.
Mosquito-borne: Malaria, Yellow Fever, etc.
Tick-borne: Lyme disease, etc.
Ento. Bugs. Insects. Sample tests would be great places. Start on the test exchange and e x p a n d. <--Fibonacci Spaces!!!SOnerd wrote:Is there a good place where I could find (somewhat) comprehensive lists of each type? I've found one for foodbourne on the CDC website, but idk if it's accurate.UTF-8 U+6211 U+662F wrote:You should do representatives for each group of illnesses.
Food-borne: Salmonellosis, E. coli infections, etc.
Water-borne: Giardiasis, Cholera, etc.
Airborne: Tuberculosis, Measles, etc.
Sexual: Hepatitis, Herpes, Cervical Cancers, etc.
Mosquito-borne: Malaria, Yellow Fever, etc.
Tick-borne: Lyme disease, etc.
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