Find the Retrospective Studies Containing All Benefits of Cohort Studies
A historic cohort study:
A retrospective study looks into the past of any outcome with the relation of the exposures to any suspected risk or protection factors. That is why a retrospective cohort study is often mentioned as a historic cohort study. Many important and valuable case-control studies were actually retrospective investigations in reality.
You will find in the Retrospective studies Assignment Help from myhomeworkhelp.com that most of the error based or biased confounding had their origin belonging to retrospective studies rather than the prospective studies. It is the main cause behind the frequent criticism against retrospective studies.
Retrospective against prospective study:
You can see that if the outcome is unknown then the size of the risks involving prospective investigations are very large too. But in the retrospective studies the odds ratio helps in the estimation of the risks which are involved. Generally, biased and confounding sources of retrospective studies should be avoided.
Find in the Retrospective studies Assignment Help that retrospective cohort study focuses on the individuals who share the sameexposure factorto determine the influence level of any disease. It also compares the other groups of individuals with each others.
The design of retrospective study:
The retrospective study is a psychological study where different group of individuals are compared with each other who share some common characteristics for a particular result. In the retrospective study the investigator collects data from the past and doesn’t keep the track of the patient as it is done in the prospective study.
The main objective is concerned with the comparison between the exposed and non-exposed groups of individuals. Although you will find in the Retrospective studies Assignment Help that these groups are indeed followed after a certain time period.
There are some advantages and disadvantages of the retrospective studies which are very important to know. They are:
- Retrospective study takes less time to complete and also is conducted on a smaller scale.
- This study is better for analyzing multiple outcomes and often found to address rare diseases.
- Retrospective studies are generally less expensive.
- It contains all the benefits of cohort studies.
- There are significant biases which are found to hamper the selected controls.
- You will find in the Retrospective studies Homework Help that major biases can place direct impact on the former exposure to risk variables.
- The temporal relationship is often found very difficult to assess.
- Retrospective studies don’t give the control over the exposure or outcome assessment. This is particularly troublesome to compare between exposed and non-exposed.
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