Postgraduate publishing output in pediatric neurosurgery: correlation with fellowship site and individual scholars

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OBJECTIVE

The objective of this study was to analyze the publication output of postgraduate pediatric neurosurgery fellows for a 10-year period as well as identify 25 individual highly productive pediatric neurosurgeons. The correlation between academic productivity and the site of fellowship training was studied.

METHODS

Programs certified by the Accreditation Council for Pediatric Neurosurgery Fellowships that had 5 or more graduating fellows from 2006 to 2015 were included for analysis. Fellows were queried using Scopus for publications during those 10 years with citation data through 2017. Pearson correlation coefficients were calculated, comparing program rankings of faculty against fellows using the revised Hirsch index (r-index; primary) and Hirsch index (h-index; secondary). A list of 25 highly accomplished individual academicians and their fellowship training locations was compiled.

RESULTS

Sixteen programs qualified with 152 fellows from 2006 to 2015; 136 of these surgeons published a total of 2009 articles with 23,735 citations. Most publications were pediatric-specific (66.7%) clinical articles (93.1%), with middle authorship (55%). Co-investigators were more likely from residency than fellowship. There was a clustering of the top 7 programs each having total publications of around 120 or greater, publications per fellow greater than 12, more than 1200 citations, and adjusted ir10 (revised 10-year institutional h-index) and ih10 (10-year institutional h-index) values of approximately 2 or higher. Correlating faculty and fellowship program rankings yielded correlation coefficients ranging from 0.53 to 0.80. Fifteen individuals (60%) in the top 25 (by r5 index) list completed their fellowship at 1 of these 7 institutions.

CONCLUSIONS

Approximately 90% of fellowship-trained pediatric neurosurgeons have 1 or more publications, but the spectrum of output is broad. There is a strong correlation between where surgeons complete their fellowships and postgraduate publications.

ABBREVIATIONS ACPNF = Accreditation Council for Pediatric Neurosurgery Fellowship; h-index = Hirsch index; ih5 = 5-year institutional h-index; ih10 = 10-year institutional h-index; ih10c = ih10 index corrected for the number of fellows who graduated from the program within the 10-year period; ir5 = revised 5-year institutional h-index; ir10 = revised 10-year institutional h-index; ir10c = ir10 index corrected for the number of fellows who graduated from the program within the 10-year period; r-index = revised h-index.
Article Information

Contributor Notes

Correspondence Paul Klimo Jr.: Semmes Murphey, Memphis, TN. pklimo@semmes-murphey.com.INCLUDE WHEN CITING Published online June 21, 2019; DOI: 10.3171/2019.4.PEDS18717.Disclosures The authors report no conflict of interest concerning the materials or methods used in this study or the findings specified in this paper.

© AANS, except where prohibited by US copyright law.

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