Research Methodology
and Stats
,Epidemiology Principles
Is the study of disease in populations
Key terms: Prevalence, incidence,
occurrence of disease
Prevalence = disease present/total
population
2 types of prevalence: point and period
Incidence= new cases/group at risk
2 types of incidence: incidence risk and
incidence rate
Ratio= compare 2 variables
, Principles continued...
Morris wrote on 7 uses of epidemiology. It:
1) determines health history of population
2)helps to diagnose health of community
3)studies the working of health services
4)helps to estimate individual risks
5)assists to identify syndromes
6)identifies factors that influence clinical
course
7)searches for cause and risk factors
and Stats
,Epidemiology Principles
Is the study of disease in populations
Key terms: Prevalence, incidence,
occurrence of disease
Prevalence = disease present/total
population
2 types of prevalence: point and period
Incidence= new cases/group at risk
2 types of incidence: incidence risk and
incidence rate
Ratio= compare 2 variables
, Principles continued...
Morris wrote on 7 uses of epidemiology. It:
1) determines health history of population
2)helps to diagnose health of community
3)studies the working of health services
4)helps to estimate individual risks
5)assists to identify syndromes
6)identifies factors that influence clinical
course
7)searches for cause and risk factors
