Epidemiology of a disease gives ideas about the cause and behaviour of it
Hypothesis generating studies form ideas
Descriptive Epidemiology- Time Trends
Improvement in water supply, sanitation and food hygiene
Immunisation and medical treatments
McKeown hypothesis- healthcare is minor attributor to population health status
and nutrition is critical
Cigarettes and alcohol consumption increases mortality
GNP (gross national product) is negatively associated with disease
Number of doctors per 10,000 POSITIVELY associated with mortality largely in
younger age groups
Disease frequency changes with time and important in knowing when these are
Descriptive Epidemiology- Geography
Need to be aware where disease is causing largest problem
Can study difference between populations
Can target intervention to those who need it most
Descriptive Epidemiology- Characteristics
Age, sex, occupation, social class, ethnicity etc.
Can be important or negligible
Rates and Standardisation
Crude death rates don’t take into account age structures (can be important)
Used to avoid bias by comparing population to standard as accounts for
population differences
Incidence and Prevalence
Incidence (rate)- number of new cases of particular disease in a population in a
certain time
Prevalence (ratio)- all cases of disease existing in a given population at a given
time
Analytical Epidemiology
Observational studies
Focus on identifying or measuring effects of a risk factor
Test hypotheses
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller alexd1. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £2.99. You're not tied to anything after your purchase.