Disease Detectives B/C

[13lade88]

From what I know- Recall bias, an issue with retrospective studies with the patients, memory, etc. Selection bias, an issue when one cohort doesn't represent the other one accurately. Misselection bias, such as a change in case definition which causes the cases reported to be like different I guess. Observation bias- an error in measuring exposure. Interviewer bias- a difference in the gaining, recording, or interpretation of information.

[Nerd_Bunny]

From what I know- Recall bias, an issue with retrospective studies with the patients, memory, etc. Selection bias, an issue when one cohort doesn't represent the other one accurately. Misselection bias, such as a change in case definition which causes the cases reported to be like different I guess. Observation bias- an error in measuring exposure. Interviewer bias- a difference in the gaining, recording, or interpretation of information.

Correct! Your turn!

[13lade88]

When would you choose to use a retrospective cohort study design, versus a case-control, and why?

[Nerd_Bunny]

When would you choose to use a retrospective cohort study design, versus a case-control, and why?

Cohort studies are more accurate than case-control studies. You can calculate prevalence and incidence with a cohort study, but with a case-control study, you cannot.

[Tailsfan101]

Going to start this up again...

A man goes in for his yearly checkup and does not show signs of any diseases. Is this an example of:
A. Primary Prevention
B. Secondary Prevention, or
C. Tertiary Prevention?

[Nerd_Bunny]

Primary prevention.

[Tailsfan101]

Primary prevention.

Correct! Your turn.

[Nerd_Bunny]

Oops forgot about this...

List the Bradford Hill criteria. What are they for?

[19gladuns]

List the Bradford Hill criteria. What are they for?[/quote]
Hill's Criteria are in place to establish a cause and effect relationship

Strength of Association - relationship is clear and risk estimate is high
Consistency - observation of association must be repeatable in different populations at different times Specificity - a single cause produces a specific effect
Alternative Explanations - consideration of multiple hypotheses before making conclusions about whether an association is causal or not Temporality - cause/exposure must precede the effect/outcome
Dose-Response Relationship - an increasing amount of exposure increases the risk
Biological Plausibility - the association agrees with currently accepted understanding of biological and pathological processes
Experimental Evidence - the condition can be altered, either prevented or accelerated, by an appropriate experimental process Coherence - the association should be compatible with existing theory and knowledge, including knowledge of past cases and epidemiological studies

[Tailsfan101]

List the Bradford Hill criteria. What are they for?
Hill's Criteria are in place to establish a cause and effect relationship

Strength of Association - relationship is clear and risk estimate is high
Consistency - observation of association must be repeatable in different populations at different times Specificity - a single cause produces a specific effect
Alternative Explanations - consideration of multiple hypotheses before making conclusions about whether an association is causal or not Temporality - cause/exposure must precede the effect/outcome
Dose-Response Relationship - an increasing amount of exposure increases the risk
Biological Plausibility - the association agrees with currently accepted understanding of biological and pathological processes
Experimental Evidence - the condition can be altered, either prevented or accelerated, by an appropriate experimental process Coherence - the association should be compatible with existing theory and knowledge, including knowledge of past cases and epidemiological studies

I see that you're new and may not be experienced with the 'quote' BBCode, so:
Type it out like this:

Code: Select all

[quote="Nerd_Bunny"]List the Bradford Hill criteria. What are they for?[/quote]

Which turns out like this:

List the Bradford Hill criteria. What are they for?

Or, to make it simpler, just click the quote button (labeled with ") in the upper right hand corner of a post.