Use of the g-index for assessment of citation-based scholarly activity of United States radiation oncology residents and subsequent choice of academic versus private practice career

Shearwood McClelland, Timur Mitin, Nima Nabavizadeh, Clifton David Fuller, Charles Thomas, Jerry Jaboin

Research output: Contribution to journalArticle

Abstract

Introduction: The Hirsch index (h-index) evaluates citation-based scholarly activity, but has limited ability to acknowledge those publishing a smaller number of manuscripts with exceedingly high citations. The g-index addresses this limitation by assessing the largest number of manuscripts (g) by an author cited at least (g × g) times, but has yet to be applied to radiation oncology resident productivity. Methods: A list of recent radiation oncology resident graduates (comprising 86% of the 2016 graduating class) and their post-residency career choice was compiled. The Scopus bibliometric citation database was searched to collect and calculate g-index data for each resident. Results: The mean g-index score for all resident graduates was 7.16. Residents with a PhD had significantly higher g-index scores (11.97 versus 5.80; p < 0.01), while there was no statistically significant difference in g-index scores between male and female residents. Residents choosing academic careers had higher g-index scores than those choosing private practice (9.47 versus 4.99; p < 0.01). Programs graduating at least three residents produced significantly higher g-index scores/resident than those graduating two residents, and while comprising only 25% of programs and 45% of residents, produced 60% of academic careers (p < 0.02). Conclusion: Radiation oncology resident graduates published on average a minimum of seven manuscripts cited at least 49 times. PhD-degree graduates had significantly higher g-index scores, as did residents choosing academic over private practice careers. There was no significant gender-related difference in g-index score regardless of career choice. The majority of academic careers are produced from programs graduating at least three residents.

Original languageEnglish (US)
Pages (from-to)294-297
Number of pages4
JournalReports of Practical Oncology and Radiotherapy
Volume24
Issue number3
DOIs
StatePublished - May 1 2019

Keywords

  • Academic radiation oncology
  • g-Index
  • Private practice radiation oncology
  • Radiation oncology residency graduates
  • Residency program size

ASJC Scopus subject areas

  • Oncology
  • Radiology Nuclear Medicine and imaging

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