16501 - The epidemiologica l tool-box • A ssociations –...

Info iconThis preview shows pages 1–11. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: The epidemiologica l tool-box • A ssociations – q ua ntific a tio n us ing rate ra tio s , ra te diffe re nc e s , o dds ratio s The association between quantity of salt sold and oesophageal cancer mortality in counties of Henan province, China Analytical epidemiology 1: Ecological Studies Prevalence of carriers of hepatitis B surface antigen Risk for cancer of the liver (cases/100000 population in areas of high risk for this cancer - sub Saharan Africa and eastern Asia • B iases – info rm atio n b ia s , s e le c tio n b ia s • C onfounding – detection and control • D etermination of causation • E ffect Modification/ Interaction/Synergism The epidemiologica l tool-box Outcome Status present absent Exposur e Status exposed not exposed 2*2 if only life were so simple… Design of a case-control study TIME direction of inquiry Population Cases with disease Controls without disease Exposed Exposed Unexposed Unexposed Odds ratio and corresponding 95% confidence (stratified by age) Analytical Studies 2: Case control study of Hepatitis C seropositivity and lymphoma Design of a cohort study Design of a cohort study TIME direction of inquiry people exposed disease population without the no disease disease not exposed disease no disease “at risk” Analytical studies 3:...
View Full Document

This note was uploaded on 02/23/2012 for the course SCI 310 taught by Professor Staff during the Fall '10 term at Rutgers.

Page1 / 31

16501 - The epidemiologica l tool-box • A ssociations –...

This preview shows document pages 1 - 11. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online