Epidemiology is the research of the determinants and distribution of the occurrence of any disease in humans and the use of this research to manage public health problems. The goal of epidemiologic research is to yield precise and valid data about the preventions, treatments, and causes of any disease. (Stanhope, 2012)
Data is needed to research and get knowledge of activities in healthcare. Stanhope and Lancaster has divided the data in three kinds which may be used in epidemiology. It includes the following:
Regularly Collected Data
Data Collected by Different Records
Data Collected for Epidemiological Research
The above mentioned kinds of resources of data present a big quantity of diverse knowledge. Which data is particularly required is up to the decision of epidemiologists. Regularly Collected Data include the data collected by the government of many countries. This sort of data is regularly collected by the specific governmental agencies, for example, birth and deaths statistics are regularly maintained by the government agencies. This data may not be of better quality but still it is helpful in researching continuing tendencies.
Q. 2:
Epidemiologic research includes a number of research plans, the 03 most common forms are as follows:
Cohort Study: usually studies compound health consequences of an contact; subjects are classified in accordance with their contact levels and pursued for disease incidence.
Case Control Study: usually studies compound exposures regarding a disease; subjects are classified as controls and cases, and contact histories are evaluated.
Cross-Sectional Study: studies connection between disease prevalence and exposure in a classified population at a particular moment.
Explanation and Comparison Of Two Types Of Epidemiological Research
1. Cohort Study
In Cohort Study, data collection is carried out by sampling rows. It is used to study compound health consequences of an contact; subjects are classified in accordance with their contact levels and ...