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Vol. 34. Issue 4.
Pages 194-202 (July - August 2023)
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Vol. 34. Issue 4.
Pages 194-202 (July - August 2023)
Clinical Research
Scientific authorship in neurosurgery
La autoría científica en Neurocirugía
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7
Rubén Diana-Martín, Pedro David Delgado-López
Corresponding author
pedrodl@yahoo.com

Corresponding author.
Servicio de Neurocirugía, Hospital Universitario de Burgos, Burgos, Spain
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Tables (3)
Table 1. Aggregated data from both autonomous communities regarding the order of authorship and total authorship of the sample of neurosurgeons (N = 183).
Table 2. Aggregated data of the complete sample (N = 183) on the total number of articles, signed as first or second author, and personal authorship quotient (PAQ). Total impact factor, of the articles signed as first or second author and personal impact quotient (PIQ).
Table 3. Comparison of PAQ and PIQ indices considering preferential authorship as first and second author (PAQ and PIQ 1 + 2); first, second, last and corresponding author (PAQ and PIQ 1 + 2 + last + corresp); and first, last and corresponding author (PAQ and PIQ 1 + last + corresp, following ANECA criteria).
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Abstract
Introduction

Assessment of scientific bibliographic production is a complex issue, mainly based on the impact factor (IF) of the journals and the h index, that quantifies the number of cites an author receives. In order to estimate the bibliographic production and the influence of co-authorship among Spanish neurosurgeons, we performed a PubMed search aimed to identify all papers published by a sample of neurosurgeons.

Methods

Cross-sectional observational and regional study. We identified a sample of 183 neurosurgeons from Madrid and Castilla y León Autonomous Communities. The bibliometric information was gathered in March 2022 via PubMed free access website. For each author we registered the type of journal, total number of articles, order of appearance in the authors’ list, total IF, the proportion of articles signed as first or second author (Personal Authorship Quotient [PAQ]) and the percentage of IF attributable to those articles (Personal Impact Quotient [PIQ]).

Results

A total of 3,592 articles from 183 authors were published in 412 different journals, of which only 9.9% were pure neurosurgical journals. Only 17 neurosurgeons (9,3%) had published at least one article as unique author. The average number of articles per neurosurgeon was 20 (median 9) of which 57.7% were published in neurosurgical journals, and 22,2% in Neurocirugía (official publication of the SENEC). The average PAQ was 0.367 (median 0.364) and the average PIQ was 0.317 (median 0.251). Both proportions tended to decrease as the number of publications increased.

Conclusions

On average, Spanish neurosurgeons publish half of their articles in neurosurgical journals, appear as first or second author in one third of the cases, and the IF attributable to these papers comprise 25% of the total IF. The PAQ and PIQ provide bibliometric information that minimizes the enlarging effect on curriculum of massive co-authorship and allow comparisons among authors and different scientific fields.

Keywords:
Authorship
Neurosurgery
Impact factor
Bibliometrics
Manuscript
Article
Resumen
Introducción

La evaluación de la producción científica bibliográfica es un tema complejo que fundamentalmente se basa en el factor de impacto (FI) de la revista en la que se publica y en el índice h, que cuantifica las citas que recibe el autor. Para estimar la producción bibliográfica y el grado e impacto de la coautoría en los artículos científicos publicados por neurocirujanos españoles, se realizó una búsqueda en PubMed de todos los artículos publicados por una muestra de neurocirujanos.

Material y métodos

Estudio observacional y transversal de ámbito regional. Se identificó una muestra de 183 autores neurocirujanos de las Comunidades de Madrid y de Castilla y León. La información bibliométrica se obtuvo durante el mes de marzo de 2022 de la base de datos PubMed de acceso libre en internet. Para cada autor se registraron el tipo de revista, el número total de artículos publicados, el orden de autoría, el FI total de sus publicaciones, el porcentaje de trabajos firmados como primer o segundo autor (Cociente de Autoría Personal [CAP]) y el porcentaje del FI achacable a dichos trabajos (Cociente de Impacto Personal [CIP]).

Resultados

Los 183 autores publicaron un total de 3.592 artículos en 412 revistas diferentes, de las cuales sólo el 9,9% eran revistas puramente neuroquirúrgicas. Únicamente 17 autores publicaron algún trabajo en solitario (9,3%). El promedio de artículos por neurocirujano fue de 20 (mediana 9) de los cuales el 57,7% se publicaron en revistas neuroquirúrgicas y el 22,2% en la revista Neurocirugía (publicación oficial de la SENEC). El promedio del CAP fue de 0,367 (mediana 0,364) y el promedio del CIP fue de 0,317 (mediana 0,251). Ambos cocientes tendieron a disminuir a medida que aumentaba el número de artículos publicados.

Conclusiones

En promedio, los neurocirujanos españoles publican la mitad de sus trabajos en revistas neuroquirúrgicas, firman sus trabajos como primer o segundo autor en un tercio de los casos, y el impacto achacable a esos trabajos es el 25% del total. Los CAP y CIP proporcionan información bibliométrica que minimiza el efecto de engorde curricular de la coautoría masiva y pueden permitir comparaciones entre diferentes autores y áreas temáticas.

Palabras clave:
Autoría
Neurocirugía
Factor de impacto
Bibliometría
Manuscrito
Artículo.

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