Mueller PS, Murali NS, Cha SS, Erwin PJ, Ghosh AK "The effect of online status on the impact factors of general internal medicine journals " NETHERLANDS JOURNAL OF MEDICINE 64 (2): 39-44 FEB 2006

[David Goodman]

OA at http://www.njmonline.nl/njm/getpdf.php?t=a&id=10000037

Dr. David Goodman
Associate Professor
Palmer School of Library and Information Science
Long Island University
and formerly
Princeton University Library

dgoodman at liu.edu
dgoodman at princeton.edu

----- Original Message -----
From: Eugene Garfield <garfield at CODEX.CIS.UPENN.EDU>
Date: Tuesday, July 11, 2006 4:49 pm
Subject: [SIGMETRICS] Mueller PS, Murali NS, Cha SS, Erwin PJ, Ghosh AK "The effect of online status on the impact factors of
general internal medicine journals " NETHERLANDS JOURNAL OF MEDICINE 64 (2): 39-44 FEB 2006
To: SIGMETRICS at LISTSERV.UTK.EDU

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> Title: The effect of online status on the impact factors of general
> internal medicine journals
>
> Author(s): Mueller PS, Murali NS, Cha SS, Erwin PJ, Ghosh AK
>
> Source: NETHERLANDS JOURNAL OF MEDICINE 64 (2): 39-44 FEB 2006
>
> Document Type: Article
> Language: English
> Cited References: 23      Times Cited: 0
>
> Abstract:
> Background:
> We sought to determine the effects of becoming available online on
> impactfactors of general medicine journals.
>
> Methods: Through MEDLINE with an institutional subscription, the 2004
> online status of "Medicine, General and Internal" journals listed
> in the
> Institute for Scientific Information (ISI) journal Citation Reports
> (JCR)was classified as full text on the Net (FUTON), abstract only,
> or no
> abstract available (NAA)/unavailable in MEDLINE. Similarly, through
> use of
> a home computer without an institutional subscription, the 2004 online
> status of the same journals was determined. For each journal, impact
> factors for 1992 to 2003 were obtained.
>
> Results: Of the 102 "Medicine, General and Internal" journals
> listed in the
> ISI JCR, 71 (70%) existed in both pre-Internet (1992) and Internet
> (2003)eras. Of these 71 journals, those available as FUTON in 2004
> had higher
> median impact factors than non-FUTON journals in 1992 (p < 0.0001)
> and 2003
> (p < 0.0001). journals that became available online, at least
> partially,had significant increases in median impact factors from
> 1992 to 2003 (p <
> 0.0001 for journals that became available as FUTON and for journals
> thatprovided an abstract only). However, journals that became
> available as
> FUTON had a greater increase in median impact factor from 1992 to
> 2003 than
> other journals (p=0.002). Similar results were obtained using
> impact factor
> data according to journal online status through use of a home computer
> without an institutional subscription and for English-language
> journalsonly.
>
> Conclusion: Becoming available online as FUTON is associated with a
> significant increase in journal impact factor.
>
> Addresses: Mueller PS (reprint author), Mayo Clin & Mayo Fdn, Div Gen
> Internal Med, 200 1st St SW, Rochester, MN 55905 USA
> Mayo Clin & Mayo Fdn, Div Gen Internal Med, Rochester, MN 55905 USA
> Mayo Clin & Mayo Fdn, Div Biostat, Rochester, MN 55905 USA
> Mayo Clin & Mayo Fdn, Med Lib, Rochester, MN 55905 USA
>
> Publisher: VAN ZUIDEN COMMUNICATIONS, HENRY DUNANTWEG 40A, 2402 NR
> ALPHENAAN DE RIJN, NETHERLANDS
> Subject Category: MEDICINE, GENERAL & INTERNAL
> IDS Number: 032XP
>
> ISSN: 0300-2977
>
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