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Documents Intermediate methods in observational epidemiology 2008 Confounding - I.

Slide 1 Intermediate methods in observational epidemiology 2008 Confounding - I Slide 2 800200500 80100 50250 180300 Mortality 18% 30% Deaths Intervention No intervention…

Documents Intermediate methods in observational epidemiology 2008

80 100 OBSERVATION VS. EXPERIMENT Confounding variable Less common in the group that undergoes the intervention Increased mortality (âoutcomeâ) (DUAL) ASSOCIATION OF CONFOUNDING…

Documents Confounding. A plot of the population of Oldenburg at the end of each year against the number of...

Slide 1 Confounding Slide 2 A plot of the population of Oldenburg at the end of each year against the number of storks observed in that year, 1930-1936. Ornitholigische Monatsberichte…