The evolution of academic performance in nine subspecialties of internal medicine: an analysis of journal citation reports from 1998 to 2010

Internal medicine includes several subspecialties. This study aimed to describe change trend of impact factors in different subspecialties of internal medicine during the past 12 years, as well as the developmental differences among each subspecialty, and the possible influencing factors behind thes...

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Bibliographic Details
Published in:PloS one 2012-10, Vol.7 (10), p.e48290-e48290
Main Authors: Zhang, Yan, Kou, Jia, Zhang, Xue-Guang, Zhang, Li, Liu, Shu-Wen, Cao, Xue-Ying, Wang, Yuan-Da, Wei, Ri-Bao, Cai, Guang-Yan, Chen, Xiang-Mei
Format: Article
Language:English
Subjects:
Academic achievement
Academies and Institutes - statistics & numerical data
Allergies
Bibliometrics
Cardiology
Cardiovascular system
Citation analysis
Clinical trials
Communicable diseases
Coronary artery disease
Endocrinology
Gastroenterology
Heart diseases
Hematology
Hospitals
Hypersensitivity
Infectious diseases
Internal medicine
Internal Medicine - statistics & numerical data
Journal Impact Factor
Kidney diseases
Laboratories
Medicine
Metabolism
Nephrology
Nursing
Pediatrics
Quality
Respiratory system
Rheumatology
Science
Science Policy
Social and Behavioral Sciences
Statistics as Topic
Studies
Surgery
Time Factors
Trends
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Summary:Internal medicine includes several subspecialties. This study aimed to describe change trend of impact factors in different subspecialties of internal medicine during the past 12 years, as well as the developmental differences among each subspecialty, and the possible influencing factors behind these changes and differences. Nine subspecialties of internal medicine were chosen for comparison. All data were collected from the Science Citation Index Expanded and Journal Citation Reports database. (1) Journal numbers in nine subspecialties increased significantly from 1998 to 2010, with an average increment of 80.23%, in which cardiac and cardiovascular system diseases increased 131.2% rank the first; hematology increased 45% rank the least. (2) Impact Factor in subspecialties of infectious disease, cardiac and cardiovascular system diseases, gastroenterology and hepatology, hematology, endocrinology and metabolism increased significantly (p6), hematology had the maximum proportion of 10%, nephrology and respiratory system disease had the minimum of 4%. Among the journal with low impact factor (IF
ISSN:1932-6203
1932-6203
DOI:10.1371/journal.pone.0048290