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The impact factor (IF) or journal impact factor (JIF) of an academic journal is a scientometric index calculated by Clarivate that reflects the yearly mean number of citations of articles published in the last two years in a given journal, as indexed by Clarivate's Web of Science.
The impact factor (IF) or journal impact factor (JIF) of an academic journal is a scientometric index calculated by Clarivate that reflects the yearly mean number of citations of articles published in the last two years in a given journal, as indexed by Clarivate's Web of Science.
Journal ranking is widely used in academic circles in the evaluation of an academic journal's impact and quality. Journal rankings are intended to reflect the place of a journal within its field, the relative difficulty of being published in that journal, and the prestige associated with it.
The simplest journal-level metric is the journal impact factor, the average number of citations that articles published by a journal in the previous two years have received in the current year, as calculated by Clarivate. Other companies report similar metrics, such as the CiteScore, based on Scopus.
The Journal of Clinical Epidemiology is a peer-reviewed journal of epidemiology. The journal was originally established as the Journal of Chronic Diseases in 1955 as a follow-up to Harry S. Truman 's 1951 Presidential Task Force on national health concerns and the subsequently written Magnuson Report .
The values for Nature journals lie well above the expected ca. 1:1 linear dependence because those journals contain a significant fraction of editorials. CiteScore was designed to compete with the two-year JCR impact factor, which is currently the most widely used journal metric. [7] [8] Their main differences are as follows: [9]
Health is abstracted and indexed in Scopus and the Social Sciences Citation Index.According to the Journal Citation Reports, its 2013 impact factor is 1.324, ranking it 70 out of 136 journals in the category "Public, Environmental & Occupational Health (SSCI)" and 18 out of 37 journals in the category "Social Sciences, Biomedical".
Across all studies, we find the strongest and most consistent evidence for the negative impact of discrimination on mental health and health-related behaviors, [21] but a meta-analysis of 134 samples also shows evidence of an inverse link between discrimination and physical health. [6] Comparisons between the impact of chronic, lifetime, and ...