Objective: To analyze the articles and citation published in the Chinese Journal of Internal Medicine from 2008 to 2010, in order to investigate the influence factors of impact factor (IF).
Methods: All articles published in the Chinese Journal of Internal Medicine covered by Chinese Medical Citation Index(CMCI) from 2008 to 2010 were searched and downloaded. Some article related attributions were manual added and their influences to IF were analyzed.
Results: A total of 1164 academic papers were published in the journal in 3 years, with 9.95 references per paper. The total citation was 1029 times, with 0.93 time per paper and 0.31 time per page. Among them, 736 articles were not cited, accounting for 63.2%. Original articles, pure clinical articles had good citation output. For fund supporting, the citation of articles without fund was higher than those with fund. The articles on hematology, cardiology and gastroenterology accounted the most, while ICU, emergency and nephrology were the least internal medicine reported specialties. Although there exists citation difference among different subjects, for considering the absolute values, neurology/psychiatry (0.73 time per paper), cardiology (0.65 time per paper) and gastroenterology (0. 54 time per paper) had better citation output, while hematology, basic research and rheumatology had no good performance to IF.
Conclusion: We should further strengthen acquisition and dissemination of excellent articles, reduce the number of non-cited paper, expand periodical visibility, and provide a quick and convenient way of literature reading.
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