Bilbiometric analysis of scientific production in cancer molecular epidemiology (D. Ugolini et al (Genoa, Italy)

Eugene Garfield eugene.garfield at THOMSON.COM
Mon Aug 20 16:37:17 EDT 2007


Carcinogenesis Advance Access originally published online on June 4,
Carcinogenesis 2007 28(8):1774-1779; doi:10.1093/carcin/bgm129 

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Articles by Bonassi, S.


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Articles by Ugolini, D.

Articles by Bonassi, S.

(c) The Author 2007. Published by Oxford University Press. All rights
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A bibliometric analysis of scientific production in cancer molecular

Donatella Ugolini1,2,*, Riccardo Puntoni2, Frederica P. Perera3, Paul A.
Schulte4 and Stefano Bonassi5 

1 Dipartimento di Oncologia, Biologia e Genetica, University of Genoa,
Genoa 16132, Italy
2 Units of Epidemiology and Biostatistics, National Cancer Research
Institute, Genoa 16132, Italy
3 Department of Environmental Health Sciences, Mailman School of Public
Health of Columbia University, New York, NY 10032, USA
4 Centers for Disease Control and Prevention, National Institute for
Occupational Safety and Health, Cincinnati, OH 45226, USA
5 Unit of Molecular Epidemiology, National Cancer Research Institute,
Genoa 16132, Italy 

* To whom correspondence should be addressed. Tel: +39 010 5600071; Fax:
+39 010 5600501; Email: donatella.ugolini at
<mailto:donatella.ugolini at>  

Objectives: The main purpose of this research was to compare the
scientific production in the field of cancer molecular epidemiology
among countries and to evaluate the publication trend between 1995 and
2004. Methods: A bibliometric study was carried out searching the PubMed
database with a combined search strategy based on the keywords listed in
the medical subject headings and a free text search. Only articles from
a representative subset of 92 journals-accounting for 80% of papers
identified-were selected for the analysis, and the resulting 13 240
abstracts were manually checked according to a list of basic inclusion
criteria. The study evaluated the number of publications and the impact
factor (mean and sum), absolute and normalized by country population and
gross domestic product. Results: A total of 3842 citations were finally
selected for the analysis. Thirty-seven percent came from the European
Union (UK, Germany, Italy, France and Sweden ranking at the top), 31.6%
from USA and 9.7% from Japan. The highest mean impact factor was
reported for Canada (6.3), USA (5.9), Finland (5.8) and UK (5.2).
Finland, Sweden and Israel had the best ratio between scientific
production and available resources. 'Genetic polymorphism, glutathione
transferase, breast neoplasm, risk factors, case-control studies and
polymerase chain reaction' were the most used keywords in each of the
subgroups evaluated, although inclusion criteria may have privileged
studies dealing with exogenous carcinogens. Conclusion: Cancer molecular
epidemiology is an expanding area attracting an increasing interest. The
identification of an operative definition is a necessary condition to
give to this discipline a unique scientific identity. 

Abbreviations: EU, European Union; IF, impact factor; MeSH, medical
subject headings; mIF, mean impact factor




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