Copyright
©2013 Baishideng Publishing Group Co.
World J Gastroenterol. Nov 28, 2013; 19(44): 7830-7835
Published online Nov 28, 2013. doi: 10.3748/wjg.v19.i44.7830
Published online Nov 28, 2013. doi: 10.3748/wjg.v19.i44.7830
Table 1 Literature indexes for papers published in World Journal of Gastroenterology between 2008 and 2012
Year | No. of papers | No. of references | Average No. of references | No. of self-citations in the journal | The mean No. of self-citations in each paper | Self-citation rate |
2008 | 1112 | 40485 | 36.41 | 930 | 0.84 | 8.59% |
2009 | 863 | 29458 | 34.13 | 767 | 0.89 | 6.02% |
2010 | 813 | 29624 | 36.44 | 832 | 1.02 | 5.50% |
2011 | 677 | 25878 | 38.22 | 758 | 1.12 | 4.47% |
2012 | 944 | 37947 | 40.20 | 918 | 0.97 | 5.21% |
Table 2 Co-author collaboration status in World Journal of Gastroenterology in 2008-2012
Year | Distribution of number of co-author articles | Total (articles) | Authors | Cooperation degree | Cooperation rate | ||||||||||
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | ≥11 | |||||
2008 | 49 | 96 | 91 | 147 | 154 | 167 | 111 | 121 | 63 | 42 | 71 | 1112 | 6501 | 5.85 | 95.59% |
2009 | 28 | 66 | 100 | 102 | 139 | 107 | 107 | 74 | 46 | 38 | 56 | 863 | 5072 | 5.88 | 96.76% |
2010 | 28 | 62 | 77 | 84 | 113 | 108 | 108 | 74 | 53 | 46 | 106 | 813 | 5037 | 6.20 | 96.56% |
2011 | 21 | 46 | 63 | 77 | 103 | 87 | 100 | 96 | 29 | 25 | 30 | 677 | 4034 | 5.96 | 96.90% |
2012 | 31 | 67 | 86 | 122 | 95 | 137 | 111 | 91 | 57 | 57 | 90 | 944 | 5956 | 6.31 | 96.72% |
Total | 157 | 337 | 417 | 532 | 604 | 606 | 537 | 456 | 248 | 208 | 353 | 4409 | 26600 | 6.03 | 96.44% |
Table 3 Authors with 5 or more publications in World Journal of Gastroenterology between 2008 and 2012
Author | Institute | No. of papers of first authors | No. of papers of the communicating authors | No. of cited papers | Citation frequency |
Freeman, Hugh James | Univ British Columbia Hosp, Canada | 22 | 22 | 22 | 133 |
Tarantino, Giovanni | Univ Naples Federico II, Med Sch Naples, Italy | 7 | 9 | 7 | 42 |
Ishikawa, Toru | Saiseikai Niigata Daini Hosp, Japan | 7 | 7 | 5 | 20 |
Akbulut, Sami | Diyarbakir Educ and Res Hosp, Turkey | 7 | 8 | 5 | 18 |
Hirasaki, Shoji | Sumitomo Besshi Hosp,and Kubo Hosp, Japan | 7 | 8 | 6 | 27 |
Sporea, Ioan | Univ Med and Farm Timisoara, Romania | 5 | 5 | 5 | 52 |
Katsinelos, Panagiotis | Cent Hosp, Greece | 5 | 5 | 4 | 19 |
Lohsiriwat, Varut | Mahidol Univ, Siriraj Hosp, Thailand | 5 | 5 | 5 | 48 |
Terada, Tadashi | Shizuoka City Shimizu Hosp, Japan | 5 | 5 | 3 | 41 |
Sun, Long | Xiamen Univ, Affiliated Hosp 1, China | 5 | 0 | 4 | 37 |
Lee, Tae Hoon | Soon Chun Hyang Univ, Coll Med, Cheonan Hosp, South Korea | 5 | 2 | 4 | 9 |
Table 4 Distribution of the top 15 countries or regions in World Journal of Gastroenterology during 2008-2012
Country name | 2008 | 2009 | 2010 | 2011 | 2012 | Total | Percentage |
China | 361 | 276 | 290 | 240 | 365 | 1532 | 34.75% |
Japan | 121 | 74 | 80 | 52 | 107 | 434 | 9.84% |
United States | 94 | 79 | 74 | 49 | 69 | 365 | 8.28% |
South Korea | 60 | 62 | 45 | 51 | 74 | 292 | 6.62% |
Italy | 54 | 53 | 53 | 60 | 56 | 276 | 6.26% |
Germany | 34 | 26 | 28 | 28 | 20 | 136 | 3.08% |
Turkey | 48 | 33 | 19 | 19 | 12 | 131 | 2.97% |
Spain | 31 | 35 | 13 | 16 | 21 | 116 | 2.63% |
Greece | 30 | 15 | 18 | 15 | 7 | 85 | 1.93% |
England | 23 | 18 | 16 | 9 | 17 | 83 | 1.88% |
France | 20 | 12 | 14 | 8 | 13 | 67 | 1.52% |
Brazil | 15 | 12 | 12 | 8 | 19 | 66 | 1.50% |
Canada | 23 | 13 | 9 | 3 | 11 | 59 | 1.34% |
Netherlands | 17 | 9 | 12 | 7 | 9 | 54 | 1.22% |
Thailand | 13 | 5 | 11 | 6 | 11 | 46 | 1.04% |
Total | 1305 | 998 | 984 | 811 | 1176 | 3742 | 84.87% |
Table 5 Main journals citing World Journal of Gastroenterology papers published between 2008 and 2012 n (%)
No. | Name of the citing journals | Quantity |
1 | World J Gastroenterol | 1131 (5.69) |
2 | PLoS One | 430 (2.16) |
3 | Dig Dis Sci | 198 (1.00) |
4 | Gastrointest Endosc | 180 (0.91) |
5 | J Gastroenterol Hepatol | 171 (0.86) |
6 | Aliment Pharmacol Ther | 147 (0.74) |
7 | Inflamm Bowel Dis | 147 (0.74) |
8 | J Hepatol | 138 (0.70) |
9 | Hepatogastroenterology | 137 (0.69) |
10 | Endoscopy | 122 (0.62) |
11 | Eur J Gastroenterol Hepatol | 120 (0.60) |
12 | Hepatology | 120 (0.60) |
13 | Gastroenterology | 114 (0.57) |
14 | Am J Gastroenterol | 110 (0.55) |
15 | Scand J Gastroenterol | 108 (0.54) |
Total | 3373 (16.97) |
Table 6 Data comparisons of the 7 representative gastroenterology journals in 2012
Journal name | Articles published in 2012 | Cooperation degree in 2012 | Cooperation rate in 2012 | Geographical distribution of authors | Ratio of articles contributed by domestic authors | 2012 impact factor | Ranking of discipline impact factors | Self-citation rate in 2012 |
Am J Gastroenterol | 190 | 7.50 | 94.74 | 32 | United States 45.16 | 7.553 | 7 | 3.36 |
BMC Gastroenterol | 165 | 7.35 | 98.79 | 36 | China 21.21 | 2.11 | 42 | 2.6 |
Gastroenterology | 278 | 10.55 | 97.48 | 44 | United States 44.25 | 12.821 | 1 | 2.2 |
J Clin Gastroenterol | 154 | 6.41 | 96.10 | 24 | United States 38.96 | 3.203 | 23 | 3.1 |
J Gastroenterol | 140 | 9.53 | 98.57 | 22 | Japan 76.43 | 3.788 | 17 | 3.34 |
Scand J Gastroenterol | 179 | 6.40 | 98.88 | 35 | Sweden 21.79 | 2.156 | 40 | 3.29 |
World J Gastroenterol | 944 | 6.31 | 96.72 | 58 | China 35.67 | 2.547 | 34 | 5.21 |
-
Citation: Yang H, Chen YX. Improvement analysis of article quality in
World Journal of Gastroenterology during 2008-2012. World J Gastroenterol 2013; 19(44): 7830-7835 - URL: https://www.wjgnet.com/1007-9327/full/v19/i44/7830.htm
- DOI: https://dx.doi.org/10.3748/wjg.v19.i44.7830