Article,

Risk.

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American journal of epidemiology, 181 (4): 246-50 (February 2015)Anàlisi de supervivència; Competing risks.
DOI: 10.1093/aje/kwv001

Abstract

The epidemiologist primarily studies transitions between states of health and disease. The purpose of the present article is to define a foundational parameter for such studies, namely risk. We begin simply and build to the setting in which there is more than 1 event type (i.e., competing risks or competing events), as well as more than 1 treatment or exposure level of interest. In the presence of competing events, the risks are a set of counterfactual cumulative incidence functions for each treatment. These risks can be depicted visually and summarized numerically. We use an example from the study of human immunodeficiency virus to illustrate concepts.

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