Graphic data representation in anaesthesiological journals: A proposed methodology for assessment of appropriateness

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Few authors have addressed the topic of graphic data presentation. The purpose of our study was to combine several guidelines in order to evaluate three anaesthesiology journal listed in Index Medicus (Australian, American and Italian) in terms of the appropriateness and the quality of presentation of graphs. Our analysis was based on concepts expressed by Cox and Tufte. We calculated the optimization of the amount of information in each graph using two parameters: Data Density Index (DDI) and Data Ink Ration (DIR). The correctness and clearness of each component of the graph (scale, title, axes, legends and abbreviations) was evaluated on the basis of a binary score. We analysed 300 exploratory plots, quantitative graphs and summaries of statistical analysis. About 50% of papers had more than three graphs. Mean scores were 3.22 for the Italian journal, 3.47 for the American journal and 3.82 for the Australian journal. Tufte parameters were calculated on 42 scatterplots: DDI was 5.4 ± 13.9 and DIR was 0.7 ± 0.1. The criteria applied in our study appear sufficiently sensitive to differentiate the quality of graphs.

Original languageEnglish
Pages (from-to)659-664
Number of pages6
JournalAnaesthesia and Intensive Care
Volume25
Issue number6
Publication statusPublished - 1997

Fingerprint

Ink
Anesthesiology
MEDLINE
Guidelines

Keywords

  • Anaesthesia: graphics, data display

ASJC Scopus subject areas

  • Anesthesiology and Pain Medicine

Cite this

@article{1f936a69f2314bb3a01438859b4a6079,
title = "Graphic data representation in anaesthesiological journals: A proposed methodology for assessment of appropriateness",
abstract = "Few authors have addressed the topic of graphic data presentation. The purpose of our study was to combine several guidelines in order to evaluate three anaesthesiology journal listed in Index Medicus (Australian, American and Italian) in terms of the appropriateness and the quality of presentation of graphs. Our analysis was based on concepts expressed by Cox and Tufte. We calculated the optimization of the amount of information in each graph using two parameters: Data Density Index (DDI) and Data Ink Ration (DIR). The correctness and clearness of each component of the graph (scale, title, axes, legends and abbreviations) was evaluated on the basis of a binary score. We analysed 300 exploratory plots, quantitative graphs and summaries of statistical analysis. About 50{\%} of papers had more than three graphs. Mean scores were 3.22 for the Italian journal, 3.47 for the American journal and 3.82 for the Australian journal. Tufte parameters were calculated on 42 scatterplots: DDI was 5.4 ± 13.9 and DIR was 0.7 ± 0.1. The criteria applied in our study appear sufficiently sensitive to differentiate the quality of graphs.",
keywords = "Anaesthesia: graphics, data display",
author = "{De Amici}, Donantella and C. Klersy and C. Tinelli",
year = "1997",
language = "English",
volume = "25",
pages = "659--664",
journal = "Anaesthesia and Intensive Care",
issn = "0310-057X",
publisher = "Australian Society of Anaesthetists",
number = "6",

}

TY - JOUR

T1 - Graphic data representation in anaesthesiological journals

T2 - A proposed methodology for assessment of appropriateness

AU - De Amici, Donantella

AU - Klersy, C.

AU - Tinelli, C.

PY - 1997

Y1 - 1997

N2 - Few authors have addressed the topic of graphic data presentation. The purpose of our study was to combine several guidelines in order to evaluate three anaesthesiology journal listed in Index Medicus (Australian, American and Italian) in terms of the appropriateness and the quality of presentation of graphs. Our analysis was based on concepts expressed by Cox and Tufte. We calculated the optimization of the amount of information in each graph using two parameters: Data Density Index (DDI) and Data Ink Ration (DIR). The correctness and clearness of each component of the graph (scale, title, axes, legends and abbreviations) was evaluated on the basis of a binary score. We analysed 300 exploratory plots, quantitative graphs and summaries of statistical analysis. About 50% of papers had more than three graphs. Mean scores were 3.22 for the Italian journal, 3.47 for the American journal and 3.82 for the Australian journal. Tufte parameters were calculated on 42 scatterplots: DDI was 5.4 ± 13.9 and DIR was 0.7 ± 0.1. The criteria applied in our study appear sufficiently sensitive to differentiate the quality of graphs.

AB - Few authors have addressed the topic of graphic data presentation. The purpose of our study was to combine several guidelines in order to evaluate three anaesthesiology journal listed in Index Medicus (Australian, American and Italian) in terms of the appropriateness and the quality of presentation of graphs. Our analysis was based on concepts expressed by Cox and Tufte. We calculated the optimization of the amount of information in each graph using two parameters: Data Density Index (DDI) and Data Ink Ration (DIR). The correctness and clearness of each component of the graph (scale, title, axes, legends and abbreviations) was evaluated on the basis of a binary score. We analysed 300 exploratory plots, quantitative graphs and summaries of statistical analysis. About 50% of papers had more than three graphs. Mean scores were 3.22 for the Italian journal, 3.47 for the American journal and 3.82 for the Australian journal. Tufte parameters were calculated on 42 scatterplots: DDI was 5.4 ± 13.9 and DIR was 0.7 ± 0.1. The criteria applied in our study appear sufficiently sensitive to differentiate the quality of graphs.

KW - Anaesthesia: graphics, data display

UR - http://www.scopus.com/inward/record.url?scp=0031463891&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0031463891&partnerID=8YFLogxK

M3 - Article

C2 - 9452850

AN - SCOPUS:0031463891

VL - 25

SP - 659

EP - 664

JO - Anaesthesia and Intensive Care

JF - Anaesthesia and Intensive Care

SN - 0310-057X

IS - 6

ER -