HEALTH RESEARCH Flashcards
Evidence- based medicine: RESEARCH
implies knowledge based on scientific principles and methods in contrast to information obtain from personal, intuition or from anecdotal, tradition, or common sense sources.
Descriptive Research:
describing the problem.
Analytical Research:
identifying the causes and consequences of the problem (cause and effect)
Evaluation Research:
when health practitioners address health problems, they try to answer these questions based on evidence.
Quantitative:
looks at the numbers: how many? How often? How much?
• To quantify data and generalize results from a sample to the population of interest
• To measure the incidence of various views and opinions in a chosen sample
• Sometimes followed by qualitative research which is used to explore some findings further
seeking findings that can be generalised and applied to larger populations than the one studied is a feature of quantitative research designs.
you would usually draw a QUANTITATIVE research design to test a hypothesis
Qualitative:
looks at concepts & words…Why?…helps us to understand processes & mechanisms
• To gain an understanding of underlying reasons and motivations
• To provide insights into the setting of a problem, generating ideas and/or hypotheses for later quantitative research
• To uncover prevalent trends in thought and opinion
Features of qualitative research designs:
• Theory emergent
• Contextual understanding
• Understanding processes
Triangulation:
is usually a mix of qualitative and quantitative approaches.
The Cochrane Collaboration:
develops and disseminates systematic reviews of health interventions.( including public health interventions)
SOURCES OF HEALTH INFO AND DATA
- Primary research Disease registries & surveillance systems
- AdministraJve systems e.g. hospital records (i.e. DMR)
- Office of Birth, Deaths & Marriages (BDM)
- Health surveys Government Census Data
Measuring population health:
define the population then collect data..
¬ Registries, admin systems, etc. (pre-existing and routinely conducted); or: ¬ Take a smaller sample of the population you are investigating making sure the sample size is large enough to be statistically relevant
- Prevalence – number of existing cases
- Incidence – number of new cases
- Burden of Disease: (BoD) eg. motor accidents ¬ Years of life lost (YLL) ¬ Years of Life lost to disability (YLLD) ¬ Disability Adjusted Life Years (DALYs)
• Life expectancy:
* Mortality rates: ¬ IMR & MMR
• Self-rated: health status eg. SF-36 & AQoL
Health literacy:
is the ability of individuals to gain access to, understand and use information in ways which improves their health.