Different observational study designs

Physiological conditions, Under physiological conditions,
April 16, 2020
At what time the planet”s population reaches 10,000
April 17, 2020

Different observational study designs

a)  Complete the following table titled ‘Applications of Different Observational Study Designs’ indicating for every objective under the pertinent study design if objective is ‘suitable’ or ‘not suitable’

Applications of Different Observational Study Designs Objective

Case Control

Cohort

Investigation of rare disease

 

 

Investigation of rare exposure

 

 

Investigation of long latent periods

 

 

Study of multiple exposures and determinants

 

 

Measurement of time relationship

 

 

Direct measurement of Incidence

 

 

 

 

 

 

b) Complete the following given table titled ‘Benefits and de-merits of different the observational Study Designs’ indicating for every event applicable to the pertinent study design if probability of such an event is ‘high’ or ‘low’. In case you believe the probability between study designs is same then indicate ‘same’.

Different Observational Study Designs Event

Case Control

Cohort

Selection bias

 

 

Recall bias

 

 

Loss to follow-up

 

 

Confounding affecting validity

 

 

Long time required

 

 

High cost