Case-control disease is mainly used to identify the factors which are responsible for a disease in a population by comparing a small group of individuals who have that disease with the individuals who do not have that disease but otherwise they are similar.
So here the non-disease individuals are considered and controls. This study plays an important role in studying outbreaks, rare disease, and their outcomes. This study is easy, quick and inexpensive compared to the other epidemiological studies. So the correct answer is a case-control study.
At census-taking-time, Jean Jones will be counted in ICU. Census means the total no. of patients who have at least spent two hours in ICU on the calendar day on which he was admitted to the hospital.
Health, population and environment are integrated terms. They are interrelated in many respects. Health of an individual is directly associated with the massive environmental degradation. ... Physical aspect Physical aspect of the environment refers to all non-living things.
