BIOSTATS intro

BIOSTATS

Understanding of vital phenomena through qualitative and quantitative

-Epidemiology
-Demography
-Health economics
-Genetics and Genomics

BIOSTATS USED IN:

STATISTICS

Deals with the collection analysis, interpretatiop, summarization of data obtained and decision making

ACCORDING TO NATURE

ACCORDING TO SOURCE

ACCORDING TO FUNCTIONAL RELATIONSHIP

TYPE OF DATA

QUANTITATIVE

QUALITATIVE

2 TYPE OF ACCORDING TO NATURE

QUANTITATIVE (NUMERICAL)

counts the data

TEMPERATURE

Glucose levels
CRP levels
Height
Weight
Age

EXAMPLE OF QUANTITATIVE

DISCRETE

CONTINOUS

TYPE OF QUANTITATIVE

Discrete

counted data we could count it with whole number

CONTINOUS

data that we can measure

QUALITATIVE (CATEGORIES)

DESCRIBE THE DATA

House number
Case ID number
Telephone number
Accession codes
Group names
Individual names

EXAMPLE OF QUALITATIVE

NOMINAL

ORDINAL

TYPE OF QUALITATIVE

NOMINAL

GIVE NAME AND CLASSIFICATION

ORDINAL

SIMPLY ORDER

DESCRIPTIVE STATISTICS

INFERENTIAL STATISTICS

BRANCHES OF BIOSTATISTICS

Descriptive Statistics

-Deals with summarization and presentation of data
• Measure of center and dispersion

Inferential Statistics

• Deals with hypothesis testing
• statistical test describe data uses
• parametric and non-parametric

population - sample - parameter, constant, variable

IMPORTANT TERMS TO REMEMBER

DATA

Refers to any piece of facts and statistics collected

DATA SET

SET OF DATA

QUALITATIVE

- Describes the qualities of the fata usually to classify and organize

QUANTITATIVE

- Describe the count and measurement of data

VARIABLE

-A characteristics, number or measurement obtained

POPULATION

- A bulky system where a sample is taken from

PRIMARY

SECONDARY

2 ACCORDING TO SOURCE

PRIMARY

data come directly our efforts like interview

SECONDARY

comes from book, article, news, journals

DEPENDENT

INDEPENDNT

2 ACCORDING TO FUNACTIONAL RELATIONSHIP

DEPENDENT

data that can influenced by the independent data

INDEPENDENT

data stands on its own and influences the dependent data

CATEGORICAL

NUMERICAL

SCALE OF MEASUREMENT

NOMINAL

ORDINAL

2 CATEGORICAL

INTERVAL

RATIO

2 NUMERICAL

NOMINAL

Gives name and classification

ORDINAL

GIVE ORDER

INTERVAL

Measured with no true zero

RATIO

Measured with true zero