American Journal of Epidemiology
The American Journal of Epidemiology is a peer reviewed journal for empirical research findings, opinion pieces and methodological developments in the field of epidemiological
Epidemiology is the study of health-event, health-characteristic, or health-determinant patterns in a population. It is the cornerstone method of public health research, and helps inform policy decisions and evidence-based medicine by identifying risk factors for disease and targets for preventive...

 research. It is published semimonthly, and has an impact
Impact factor
The impact factor, often abbreviated IF, is a measure reflecting the average number of citations to articles published in science and social science journals. It is frequently used as a proxy for the relative importance of a journal within its field, with journals with higher impact factors deemed...

of 5.454, ranking it 6th out of 105 Journals in the field.
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