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News

Latest impact factors for gastroenterology and hepatology journals

Interesting changes have been revealed from the latest gastroenterology and hepatology journal impact factors, for the year 2000.

News image

Gastroenterology is still the journal with the greatest impact factor, followed by Hepatology.

However, now in third place is Seminars in Liver Disease. This journal was 7th in 1999. Gut has therefore been displaced into 4th place.

Alimentary Pharmacology & Therapeutics is another improver - it has moved up to 6th place, from last year's position of 8th.

The impact factors are published by ISI. Their definition of an impact factor is "a measure of the frequency with which the 'average article' in a journal has been cited in a particular year or period."

The annual journal citation report impact factor is a ratio between citations and recent citable items published. Thus, the impact factor of a journal is calculated by dividing the number of current year citations to the source items published in that journal during the previous two years.

Journals with greatest impact:
1 Gastroenterology
2 Hepatology
3 Semin Liver Dis
4 Gut
5 J Hepatol
6 Aliment Pharmacol Ther
ISI

ISI explain that, "The impact factor is useful in clarifying the significance of absolute (or total) citation frequencies. It eliminates some of the bias of such counts, which favor large journals over small ones, or frequently issued journals over less frequently issued ones, and of older journals over newer ones. Particularly in the latter case such journals have a larger citable body of literature than smaller or younger journals.

"All things being equal, the larger the number of previously published articles, the more often a journal will be cited."

Here is the "Top Forty Four" of the impact factors for 2000:

Journal    Impact factor
Gastroenterology    12.246
Hepatology    7.304
Semin Liver Dis    6.012
Gut    5.386
J Hepatol    3.761
Aliment Pharmacol Ther    3.489
Am J Physiol-Gastr L    3.115
Am J Gastroenterol    2.834
Gastrointest Endosc    2.820
Helicobacter    2.639
J Viral Hepat    2.157
Liver Transplant    2.130
Neurogastroenterol Motil    2.081
Scand J Gastroenterol    1.842
Endoscopy    1.817
Hepatol Res    1.808
Inflamm Bowel Dis    1.791
Digestion    1.780
Gastroenterol Clin North Am    1.774
Liver    1.739
Bailliere Clin Gastr    1.733
Int J Colorectal Dis    1.707
Dis Colon Rectum    1.690
Can J Gastroenterol    1.645
J Pediatr Gastroenterol Nutr    1.580
Dig Dis Sci    1.498
Ital J Gastroenterol    1.289
Eur J Gastroenterol Hepatol    1.142
J Clin Gastroenterol    1.127
J Gastroenterol Hepatol    1.116
World J Gastroenterol    0.993
J Gastroenterol    0.990
Gastroen Clin Biol    0.927
Hepato-Gastroenterol    0.905
Z Gatsroenterol    0.887
Abdom Imaging    0.886
Dig Surg    0.810
Dig Dis    0.744
Acta Gastro-Ent Belg    0.605
Curr Opin Gastroen    0.577
Rev Esp Enferm Dig    0.384
J Diarrhoel Dis Res    0.379
Chir Gastroenterol    0.078
Best Pract Res Cl Ga    0.067

ISI
03 September 2001

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