Disease Detectives B/C

dragons790
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Re: Disease Detectives B/C

Postby dragons790 » Mon Feb 09, 2015 1:40 am

For what study types would you use relative risk, odds ratio, and prevalence odds ratio/prevalence ratio?

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Re: Disease Detectives B/C

Postby bernard » Mon Feb 09, 2015 4:03 pm

dragons790 wrote:For what study types would you use relative risk, odds ratio, and prevalence odds ratio/prevalence ratio?

Answer
Odds ratios are most commonly used in case-control studies, however they can also be used in cross-sectional and cohort study designs as well.
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Re: Disease Detectives B/C

Postby dragons790 » Mon Feb 09, 2015 11:45 pm

Yep! Do you know about relative risk and prevalence odds ratio/prevalence ratio too?

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Re: Disease Detectives B/C

Postby UTF-8 U+6211 U+662F » Mon Feb 09, 2015 11:56 pm

Answer
RR is used for Cohort Studies, Prevalence is used for Cross-sectional studies

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Re: Disease Detectives B/C

Postby dragons790 » Mon Feb 09, 2015 11:57 pm

That's right.

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Re: Disease Detectives B/C

Postby UTF-8 U+6211 U+662F » Tue Feb 10, 2015 12:13 am

Sample Question: Outbreak in Manhattan, blablablabla, CDC investigating using surveillance, blablablablabla.
a) What does CDC stand for?
b) Define surveillance.

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Re: Disease Detectives B/C

Postby Mollymcbutter17 » Sun Feb 22, 2015 2:24 am

Answers
1. The Centers For Disease Control and Prevention
2. The systematic ongoing collection, analysis, interpretation and dissemination of health data.
60% of the time it works every time. ;)

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Re: Disease Detectives B/C

Postby UTF-8 U+6211 U+662F » Sun Feb 22, 2015 3:45 pm

Correct!
Hmm... Why isn't it CDCP? Oh well.
Your turn!

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Re: Disease Detectives B/C

Postby Mollymcbutter17 » Sun Mar 08, 2015 6:10 pm

All right :D ! What is the difference between an endemic and a hyperendemic?
60% of the time it works every time. ;)

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Re: Disease Detectives B/C

Postby UTF-8 U+6211 U+662F » Sun Mar 08, 2015 6:16 pm

Mollymcbutter17 wrote:All right :D ! What is the difference between an endemic and a hyperendemic?
Endemic: disease occurs constantly in a specific area
Hyperendemic: disease occurs at a constant high incidence and prevalence in a specific area

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Re: Disease Detectives B/C

Postby Mollymcbutter17 » Mon Mar 09, 2015 10:13 pm

Correct! Your turn!
60% of the time it works every time. ;)

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Re: Disease Detectives B/C

Postby UTF-8 U+6211 U+662F » Tue Mar 10, 2015 12:50 am

Adapted from CDC Morbidity and Mortality Weekly Report:
During 2008–2012, a total of 90 cases of trichinellosis, including five outbreaks, were reported to CDC from [insert random state here]. Of these 90 cases, six were excluded from analysis, including one that did not meet the case definition and five for which case report forms were not available.

What is a symptom of trichinellosis?
What are the criteria for a case definition?

After interviewing the 84 cases and 53 controls, 52 case-patients ate pork from Joe's Butcher Shop while only 19 controls ate pork from Joe's Butcher Shop.

What type of study design is this?
What is the odds ratio/relative risk (whatever is the most appropriate) for pork from Joe's Butcher Shop?

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Re: Disease Detectives B/C

Postby UTF-8 U+6211 U+662F » Sat Mar 21, 2015 6:09 pm

Reviving this:
UTF-8 U+6211 U+662F wrote:Adapted from CDC Morbidity and Mortality Weekly Report:
During 2008–2012, a total of 90 cases of trichinellosis, including five outbreaks, were reported to CDC from [insert random state here]. Of these 90 cases, six were excluded from analysis, including one that did not meet the case definition and five for which case report forms were not available.

What is a symptom of trichinellosis?
What are the criteria for a case definition?

After interviewing the 84 cases and 53 controls, 52 case-patients ate pork from Joe's Butcher Shop while only 19 controls ate pork from Joe's Butcher Shop.

What type of study design is this?
What is the odds ratio/relative risk (whatever is the most appropriate) for pork from Joe's Butcher Shop?

Would pork from Joe's Butcher Shop be considered a primary cause of trichinellosis?

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Re: Disease Detectives B/C

Postby sciolyboy123 » Fri Apr 17, 2015 4:42 pm

UTF-8 U+6211 U+662F wrote:Reviving this:
UTF-8 U+6211 U+662F wrote:Adapted from CDC Morbidity and Mortality Weekly Report:
During 2008–2012, a total of 90 cases of trichinellosis, including five outbreaks, were reported to CDC from [insert random state here]. Of these 90 cases, six were excluded from analysis, including one that did not meet the case definition and five for which case report forms were not available.

What is a symptom of trichinellosis?
What are the criteria for a case definition?

After interviewing the 84 cases and 53 controls, 52 case-patients ate pork from Joe's Butcher Shop while only 19 controls ate pork from Joe's Butcher Shop.

What type of study design is this?
What is the odds ratio/relative risk (whatever is the most appropriate) for pork from Joe's Butcher Shop?

Would pork from Joe's Butcher Shop be considered a primary cause of trichinellosis?




I don't know how to hide answer because I'm new but here goes:
1. Diarrhea, Constipation
2. Clinical Information, Person, Location, Time Sequence
3. Case-Control
4. Odds Ratio= ad/bc = (52*34)/(32*19)= 1768/608= 2.91
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Re: Disease Detectives B/C

Postby UTF-8 U+6211 U+662F » Fri Apr 17, 2015 7:39 pm

sciolyboy123 wrote:
UTF-8 U+6211 U+662F wrote:Reviving this:
UTF-8 U+6211 U+662F wrote:Adapted from CDC Morbidity and Mortality Weekly Report:
During 2008–2012, a total of 90 cases of trichinellosis, including five outbreaks, were reported to CDC from [insert random state here]. Of these 90 cases, six were excluded from analysis, including one that did not meet the case definition and five for which case report forms were not available.

What is a symptom of trichinellosis?
What are the criteria for a case definition?

After interviewing the 84 cases and 53 controls, 52 case-patients ate pork from Joe's Butcher Shop while only 19 controls ate pork from Joe's Butcher Shop.

What type of study design is this?
What is the odds ratio/relative risk (whatever is the most appropriate) for pork from Joe's Butcher Shop?

Would pork from Joe's Butcher Shop be considered a primary cause of trichinellosis?




I don't know how to hide answer because I'm new but here goes:
1. Diarrhea, Constipation
2. Clinical Information, Person, Location, Time Sequence
3. Case-Control
4. Odds Ratio= ad/bc = (52*34)/(32*19)= 1768/608= 2.91


Correct, and pork from Joe's Butcher Shop would be considered a primary cause of trichinellosis.
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