2. OUTLINE
• WHAT IS DATA
• USE AND PRINCIPLE
OF PRESENTATION
• METHODS OF
PRESENTATION OF DATA
3. WHAT IS DATA
Data refers to raw information or
facts that can be collected, stored,
and analyzed for various purposes.
It can take different forms, such as
numbers, text, images, or audio,
and is essential for decision-making
4. SOURCE OF DATA
The main sources for collection of medical statistics are
1. Experiments
2. Surveys
3. Records.
5. STATISTICAL DATA
The data collected may be for profile or prospective studies at local,
state, national or international level. They are analyzed to assess
changes in health or disease situations in the community or population
by standard parameters. The statistical data obtained from the above
sources can be divided into two broad categories
1. Qualitative
2. Quantitative
34. 2. Pictogram
• It is a popular method to impress the frequency of the occurrence of
events to common man such as attacks, deaths, number operated,
admitted, discharged, accidents, etc. in a population.
The experiment data collected with specific objective by one or more workers are compiled and analyzed.
Survey form or scale
Recodes from medical report or hospital reports
Single bar charts show values for individual categories.
Multiple bar charts compare values across different categories.
Proportional bar charts illustrate the proportion of each category within a whole.