title: [Bibliometric analysis of IBERPOC and EPI-SCAN studies. Contribution of the smoking variable on the iberpoc study].
abstract: OBJECTIVE
  The aim of this study was to perform a bibliometric analysis of EPI-SCAN and IBERPOC studies using the Science Citation Index and Scopus databases, and to determine the overall impact with the impact of smoking on IBERPOC as a secondary objective.
  
  
  METHODS
  A general searching was conducted in Science Citation Index-Expanded through the Web of Science (WoS) (Thomson Reuters) platform and Scopus on 23 March 2015. The search strategy included the terms "iberpoc" OR "episcan" was performed on 15 October 2015.
  
  
  RESULTS
  A total of 24 publications were obtained; 13 from IBERPOC study (9 on "COPD" and 4 for "tobacco"), with 11 from the EPI-SCAN (All COPD) study. A total of 841 WoS citations were obtained (445 IBERPOC [99 of tobacco]), and 1,442 from Scopus (963 IBERPOC [144 tobacco]). The theme "tobacco" contributed with 22.24% and 14.95% of total citations in WoS and Scopus, respectively to the IBERPOC study. It was found that Scopus citations were newer, and a similar impact from both WoS studies was detected, although the IBERPOC impact was greater in Scopus. Collaborative networks of institutions and authors of both studies were identified.
  
  
  CONCLUSIONS
  There is an important productivity and impact of both studies. Scopus citations are newer than those in WoS. The "tobacco" variable added IBERPOC impact and visibility. There was high density, accessibility, and cohesion in collaborative networks of both studies.
authors.affiliation: Servicio de Neumología, Hospital Universitario 12 de Octubre, Madrid, España. Electronic address: igo01m@gmail.com.
authors.forename: J I
authors.initials: JI
authors.lastname: de Granda-Orive
authors.affiliation: Departamento de Historia de la Ciencia y Documentación, Facultad de Medicina y Odontología, Universidad de Valencia, Valencia, España.
authors.forename: A
authors.initials: A
authors.lastname: Alonso-Arroyo
authors.affiliation: Servicio de Neumología, Hospital Universitario Gregorio Marañón, Madrid, España.
authors.forename: D
authors.initials: D
authors.lastname: López-Padilla
authors.affiliation: Servicio de Neumología, Hospital Rey Juan Carlos, Madrid, España.
authors.forename: G
authors.initials: G
authors.lastname: Segrelles-Calvo
authors.affiliation: Unidad Especializada de Tabaquismo de la Comunidad de Madrid, Madrid, España.
authors.forename: C A
authors.initials: CA
authors.lastname: Jiménez-Ruiz
authors.affiliation: Servicio de Neumología, Hospital Universitario Gregorio Marañón, Madrid, España.
authors.forename: S
authors.initials: S
authors.lastname: Solano-Reina
mesh_terms: D015706:Bibliometrics; D003299:Cooperative Behavior; D006801:Humans; D010506:Periodicals as Topic / Q000706:statistics & numerical data*; D011643:Publishing / Q000706:statistics & numerical data; D029424:Pulmonary Disease, Chronic Obstructive / Q000453:epidemiology*; D012107:Research Design; D012907:Smoking / Q000009:adverse effects / Q000453:epidemiology*
keywords: Bibliometrics; Bibliometría; Chronic obstructive pulmonary disease; Collaboration indicator; Enfermedad pulmonar obstructiva crónica; Factor de impacto; Hábito de fumar; Impact factor; Indicador de colaboración; Smoking