Disease Detectives B/C

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Re: Disease Detectives B/C

Postby UTF-8 U+6211 U+662F » November 19th, 2018, 12:49 pm

Killboe wrote:
Nba2302 wrote:Do you need FATTOM? I saw it in ONE archived test, but otherwise, all the other tests didn't have it. Should I study it?


lmao I was the one that put FATTOM on the wiki. I've never seen it in a test, and also, it's related to Food-borne illness. Which isn't the topic for this year, and it takes up some space in your cheat sheet if you do put it. So I don't think you're going to need it.

Even if you put it in your notesheet, it takes up like a line :P

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Re: Disease Detectives B/C

Postby Nba2302 » November 20th, 2018, 11:09 am

Do I need to know about the diseases itself? Like what parts of the body it attacks and its symptoms(I am in division B). It doesn't say in the rule sheet

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Re: Disease Detectives B/C

Postby UTF-8 U+6211 U+662F » November 20th, 2018, 11:40 am

Nba2302 wrote:Do I need to know about the diseases itself? Like what parts of the body it attacks and its symptoms(I am in division B). It doesn't say in the rule sheet

I would suggest knowing basic things about common diseases like cause, symptoms, incubation period, etc.

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Re: Disease Detectives B/C

Postby Nba2302 » November 21st, 2018, 8:14 am

Since there is a romain lettuce ecoli outbreak, do you think this will be in the test? This is the site https://www.cdc.gov/ecoli/2018/o157h7-11-18/index.html

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Re: Disease Detectives B/C

Postby venules » November 21st, 2018, 10:07 am

Nba2302 wrote:Since there is a romain lettuce ecoli outbreak, do you think this will be in the test? This is the site https://www.cdc.gov/ecoli/2018/o157h7-11-18/index.html

Some exams do include current events, yes. It's not always a guarantee, though.

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Re: Disease Detectives B/C

Postby Nba2302 » November 23rd, 2018, 7:49 am

I am confused how to calculate attack rate and odds ratio. Should I use the 2*2 table with an equation like (a/c)/(b/d). or (Number of new cases of disease or injury during
specified period )/(Size of population at start of period)

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Re: Disease Detectives B/C

Postby UTF-8 U+6211 U+662F » November 23rd, 2018, 9:33 am

Nba2302 wrote:I am confused how to calculate attack rate and odds ratio. Should I use the 2*2 table with an equation like (a/c)/(b/d). or (Number of new cases of disease or injury during
specified period )/(Size of population at start of period)

The first one is for odds ratio, and the second one is for attack rate.

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Re: Disease Detectives B/C

Postby Nba2302 » November 23rd, 2018, 11:17 am

Do you still need to learn about food borne illnesses this year

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Re: Disease Detectives B/C

Postby UTF-8 U+6211 U+662F » November 23rd, 2018, 11:26 am

Nba2302 wrote:Do you still need to learn about food borne illnesses this year

It will be tested on significantly less this year (it's no longer a topic).

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Re: Disease Detectives B/C

Postby Nba2302 » November 23rd, 2018, 3:15 pm

Why is attack rate listed on part 2, then incidence proportion is listed on part 3, even though attack rate and incidence proportion mean the same thing?

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Re: Disease Detectives B/C

Postby UTF-8 U+6211 U+662F » November 23rd, 2018, 4:11 pm

Nba2302 wrote:Why is attack rate listed on part 2, then incidence proportion is listed on part 3, even though attack rate and incidence proportion mean the same thing?

Probably the two parts were written at different times. Just ignore it.

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Re: Disease Detectives B/C

Postby sophisSyo » December 3rd, 2018, 1:05 pm

So do you guys think we will need to know like McNemar's, Cochran-Mantel-haenszel, fischer's and such stuff? Or even chi square, or the test to see if odds ratio=1 etc? Because it seems like we really won't have to know much advanced statistics this year.
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Re: Disease Detectives B/C

Postby UTF-8 U+6211 U+662F » December 3rd, 2018, 1:20 pm

sophisSyo wrote:So do you guys think we will need to know like McNemar's, Cochran-Mantel-haenszel, fischer's and such stuff?

Probably not, but some event supervisors might put it on anyway, so you never know.

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Re: Disease Detectives B/C

Postby Unome » December 3rd, 2018, 3:17 pm

UTF-8 U+6211 U+662F wrote:
sophisSyo wrote:So do you guys think we will need to know like McNemar's, Cochran-Mantel-haenszel, fischer's and such stuff?

Probably not, but some event supervisors might put it on anyway, so you never know.

I've definitely seen Cochran-Mantel-Haenszel on a test before. I think I've seen Fischer's as well, but I don't remember for sure.
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Re: Disease Detectives B/C What's new?

Postby andei200 » December 6th, 2018, 1:40 pm

nmsciencemom wrote:I noticed on this year's event description, the section about C level doing advanced statistics is gone, replaced by a requirement they do more on confounding, biases and prevention measures. Does this mean we can stop trying to teach college statistics?!! Probably will be more clear on the new DD CD from Nationals.
They are also are trying to allocate the test emphasis more evenly on Background and Surveillance, Outbreak Investigation and Patterns, Controls and Prevention. If only our state event supervisor would take note of the changes...
Also new, the "5 step Process for Surveillance and the types of Surveillance".

And most importantly, this would normally be the year that the topic would be environmental sources of disease, but there is no mention of a special area to focus on this year under the Description paragraph. Anyone know if we are moving away from doing topics?!


What even is the 5 step process for surveillance? I can't find it anywhere on the internet.


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