Tiêu đề 6. BIOSTATISTICS - INTRODUCTION.pdf ✅

PHARMD GURU Page 1 INTRODUCTION: STATISTICS: Definition: Statistics is a science and art which deals with collection, classification, tabulation, presentation, analysis and drawing conclusions from numerical data.  Statistic: Weight of one person.  Statistics: Weight of hundred persons. BIOSTATISTICS: Definition: When statistics is applied in biology (including human biology, medicine and public health. It is known as biostatistics.  It is generally used to refer recorded data such as number of patient attending a hospital, no. of road accidents, etc.  Francis Galton (1822-1911) has been called the father of Biostatistics. Medical Statistics: Medical Statistics deals with application of statistical methods to the study of disease, efficacy of vaccine etc. Health Statistics: Health Statistics deals with application of statistical methods to varied information of public health importance. Vital Statistics: Vital statistics is the ongoing collection by government agencies of data relating to vital event such as births, deaths, marriage, divorces, which are deemed reportable by local health authorities. IMPORTANCE OF STATISTICS:  Essential for people into research management or graduate study in a specialized area.  Persons active in research will find that a basic statistics is useful in conducting clinical studies and field surveys. BIOSTATISTICS

PHARMD GURU Page 3 SOURCES OF DATA: The main sources of collection of medical statistics are experiment, survey, records. Experiment: Experiment are performed in various departments like physiology, biochemistry etc. The results are employed in the preparation of dissertation etc... for publication. Surveys: Surveys are carried out by health workers in the field to know the magnitude of the problem for the implementation of control measures. Records: These are the registers or books maintained over a long period for vital statistics like birth, deaths, marriage etc. OTHER SOURCES OF HEALTH INFORMATION: 1. Census. 2. Registration of vital events. (a) The Central Birth and Death Registration Act,1969. (b) Lay Reporting(Village Chokidar, house any person). 3. Sample Registration System (SRS). 4. Notification of Diseases. 5. Hospital Records Sources of Health Information. 6. Disease Registers. 7. Record Linkage. 8. Epidemiological surveillance. 9. Other health service records. 10.Environment health data. 11.Health manpower statistics. 12.Population surveys.
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