Question

As part of her studies, Nightingale collected data on infected persons and learned that the place of most infections was in the combat area. This is an example of

		social epidemiology
		experimental epidemiology
		analytical epidemiolgy
		descriptive epidemiology
		statistical epidemiology

Answer 1

If the data on infected persons is analysed and learned that the place of most infections was in the combat area. This is an example of DESCRIPTIVE EPIDEMOLOGY.

Descriptive epidemology is the study of distribution of diseases in an epidemic area and describing the determinants of disease characteristics such as

• Time
• place
• people

EXPLANATION:

Epidemiology is the study of how disease is distributed in populations and the factors that influence or determine this distribution. It is used to identify environmental and genetic risk factors for disease and to shed light on the mechanisms involved in the pathogenesis of different diseases. It is used to:

1. Study the cause of disease
2. Extent of disease in the community
3. Natural history and prognosis of disease
4. Evaluate preventive and therapeutic measures.
5. To develop public policy

The study of epidemology is mainly of Observational and experimental based studies which is further divided.

Social epidemology	studying the affect of socio cultural factors on states of health
Experimental epidemology	Study the epidemic condition on basis of experimental model to confirm the observational studies. This studies the factors of frequency and distribution of diseases in a community
Analytical epidemology	It is an analysis of relation between exposure to disease factor and outcome with a test hypothesis
Descriptive epidemology	Study of distribution of disease by characteristics such as time , place and people
Statistical epidemology	It is application of statistics to the field of epidemology