An assessment of academic productivity in pediatric neurosurgery

Clinical article

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Object

Various bibliometric indices are now commonly used to assess academic productivity in medicine. Some evidence suggests that these measures are specific to subspecialty areas. The authors' goal was to measure the h index of academic pediatric neurosurgeons and compare it with previously reported results for academic neurosurgeons in general.

Methods

Programs with an Accreditation Council for Pediatric Neurosurgery Fellowships–approved fellowship were identified, and the h and g indices of each of their surgeons were calculated. These were correlated with academic rank and compared with published literature on academic neurosurgical departments.

Results

Seventy-two pediatric neurosurgeons had a mean h index of 16.6 and a mean g index of 29.5. Both indices increased with progressive academic rank. The rank-specific mean index for academic pediatric neurosurgeons was similar to that of neurosurgeons from academic departments in general.

Conclusions

Overall, the authors conclude that the h index metric is a reasonable measure of academic productivity in the pediatric neurosurgery arena that provides a robust measure of an individual's contribution to the pediatric neurosurgery literature. Like its counterpart in neurosurgery in general, the h index for pediatric neurosurgeons correlates with institutional rank. The h index calculation also reveals the productivity of the pediatric neurosurgeons to be on par with the productivity of neurosurgeons in general.

Abbreviations used in this paper:ACPNF = Accreditation Council for Pediatric Neurosurgery Fellowships; h index and g index = Hirsch index and variation of the h index that gives more weight to highly cited articles.

Article Information

Address correspondence to: John R. W. Kestle, M.D., Department of Surgery, Room 3100, University of British Columbia, 910 W. 10th Ave., Vancouver, BC, Canada V5Z 4E3. email: john.kestle@ubc.ca.

Please include this information when citing this paper: published online July 19, 2013; DOI: 10.3171/2013.6.PEDS13112.

© AANS, except where prohibited by US copyright law.

Headings

Figures

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    Graph showing the h index and rank of pediatric neurosurgeons.

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    Graph showing the correlation of g and h indices for pediatric neurosurgeons.

References

1

Aziz NARozing MP: Profit (p)-index: the degree to which authors profit from co-authors. PLoS ONE 8:e598142013

2

Ball P: Achievement index climbs the ranks. Nature 448:7372007

3

Bould MDBoet SSharma BShin EBarrowman NJGrantcharov T: h-Indices in a university department of anaesthesia: an evaluation of their feasibility, reliability, and validity as an assessment of academic performance. Br J Anaesth 106:3253302011

4

Costas RBordons M: Is the g-index better than the h-index? An exploratory study at the individual level. Scientometrics 77:2672882008

5

Egghe L: Theory and practise of the g-index. Scientometrics 69:1311522006

6

Grzybowski A: The journal impact factor: how to interpret its true value and importance. Med Sci Monit 15:SR1SR42009

7

Hirsch JE: An index to quantify an individual's scientific research output. Proc Natl Acad Sci U S A 102:16569165722005

8

Lee JKraus KLCouldwell WT: Use of the h index in neurosurgery. Clinical article. J Neurosurg 111:3873922009

9

Mullins ME: Has the time come for bibliometrics and the h-index in academic radiology?. Acad Radiol 17:8158162010

10

Ponce FALozano AM: Academic impact and rankings of American and Canadian neurosurgical departments as assessed using the h index. Clinical article. J Neurosurg 113:4474572010

11

Radicchi FFortunato SCastellano C: Universality of citation distributions: toward an objective measure of scientific impact. Proc Natl Acad Sci U S A 105:17268172722008

12

Rezek IMcDonald RJKallmes DF: Is the h-index predictive of greater NIH funding success among academic radiologists?. Acad Radiol 18:133713402011

13

Saleem T: The Hirsch index—a play on numbers or a true appraisal of academic output?. Int Arch Med 4:252011

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