Option C. Case control Design is best suited for assessing an exposure-disease relationshio when the disease is rare.
Explanation : The main thing about rare diseases is that its "rare". In other forms of study like cross-sectional or retrospective , even if we choose very large sample , it might be the case that we don't have enough people having the disease. So, in case control study we can select a sufficient number of people having this rare disease and then set up a particular number of control people. Then, we can study the exposure factor in retrospect and see whether it has any effect on the disease. Prospective study isn't possible because in case of rare diseases we may not know the time of advent of the disease, hence it may be futile.
Which of the following study designs is best suited for assessing an exposure-disease relationship when the...
Which type of observational study design is best suited for a scenario when the exposure under study is rare? a) Case-control study b) Retrospective cohort study c) Prospective cohort study d) Prospective and retrospective cohort study e) Retrospective cohort study and case-control study
Which type of observational study design is best suited for a scenario when little is known about the causes of the disease? a) Case-control study b) Retrospective cohort study c) Prospective cohort study d) Prospective and retrospective cohort study e) Retrospective cohort study and case-control study
EPIDEMIOLOGY: Why is temporality of exposure and disease relationship a concern in a case-control study? Why is temporality of exposure and disease relationship not a concern in a prospective cohort study? Is temporality of exposure and disease a concern in a cross-sectional study. Why or why not?
2. A. For each of the following epidemiological designs (first column) mention (fill in Column to Column) Type of Design (1) Typical Exposure -Outcome Assessment Sequence (2) Key Identifying Characteristics (3) Give an Example of a Study Appropriate for This Type of Design (4) Cross-Sectional Case-Control Prospective Cohort Control Experimental B. State the main differences between the following study designs: i. Observational and experimental studies ii. Retrospective cohort and prospective cohort studies iii. Cohort and case-control...
A study that commonly includes subjects without regard to exposure or disease status and that examines the relationship between diseases and other variables at one time is a(n) a) Experimental study b) Cohort study c) Case-control study d) Cross-sectional study e) Ecological study
Match the following choices (1-4) that best fits (most efficient and logical) each of the following: 1. Case control Study, 2. Retrospective Cohort Study , 3. Prospective Cohort Study , 4. None of these selections A. Identifying the cause of a disease ___ B. Identifying the long term effects of a rare exposure ___ C. Studying the health effects of an exposure for which information is difficult and expensive to obtain ___ D. Identifying the causes of a new disease...
Choose the study design that best matches each statement described below. The study design may be used more than once or none at all. (24 points) Statement Study Design ____ Blinding or masking is used to control potential bias. Case-Control ____ Observational epidemiological studies, this design is cheaper and faster to conduct because of the usage of already existing data. Cross-sectional ____ Control groups can receive the current “standard” treatment or a placebo. Ecological ____ Data on exposure and outcome...
When investigating an outbreak of a disease, where patients do not come from a well-defined group of people, which of the following study designs makes the most sense? Prospective cohort Retrospective cohort Case-control Case-crossover
Identify which of the following six types of study designs most appropriately characterizes the situation described below. The physical examination records of the incoming freshmen class of 1935 at the University of Minnesota are examined in 1980 to see whether their recorded height and weight at the time of admission to the university are related to their chance of developing coronary heart disease by 1981. O Cross-sectional study 0 Case-control study O Prospective cohort study Historical prospective cohort study Clinical...
1. State the main difference between the following study designs: a. Observational and experimental studies b. Retrospective cohort and prospective cohort studies c. Cohort and case-control studies