TABLES AND FIGURES Prof Jorrit Gerritsen Beatrix Children’s Hospital University Medical Center...
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Transcript of TABLES AND FIGURES Prof Jorrit Gerritsen Beatrix Children’s Hospital University Medical Center...
TABLES AND FIGURES
Prof Jorrit GerritsenBeatrix Children’s Hospital
University Medical Center Groningen
General rules• Abbreviation of the word “Figure” is “Fig.”• “Table” is not abbreviated• Figures and Tables are numbered independently i.e.
in same manuscript Table 1, 2, 3, etc. next to Fig. 1, 2, 3, etc.
• When figures are strongly related they can be numbered with Fig. 1a, 1b, etc.
• Tables and Figures are in the manuscript presented on separate pages from text material at the end of the references.
• Some prefer to present the tables and figures in the Results section to make clear its position.
General rule tables• Legends (sometimes called the caption) goes above
the Table• Units are specified in column headings wherever
appropriate• Lines of demarcation are used to set legend, headers,
data and footnotes apart from one another• Footnotes are used to clarify points in the table, or to
convey repetitive information about entries• Footnotes may also be used to denote statistical
differences among groups for example: *p<0.01; #p<0.001, etc.
Anatomy of a tableTable legend
Column titles
Table body(data)
Footnotes
Flow-volume curve
Figure 1 Sailesh KotechaSpirometric lung function in school-age children. Effect of
Intrautering growth retardation and catch-up growth. AJRCCM
Figures• The most common Figure types are: – Bar graph– Frequency histogram– XY scatterplot– XY line graph– Pie
histogram
simple bar without SD
mean and confidence limits
bar with SD
Regression with SD
Kaplan-Meier plot
plot individual data
scatter
regression
scatter
EM picture
gene 1
gene 2
gene 3
general considerations on figures• big or little? a good rule is to size the fig to rill
about one half of a page• color or no color? black and white is
preferred.• title or no title? never use a title for Figures
included in a paper.• offset axes or not? elect to offset the axes
only when data points will be obscured • error bars or not? always include error bars
(SD or SEM) when plotting means
conclusions• tables and Figures are important in telling the
story in your manuscript• make the tables and Figures as simple as
possible• limit the number of tables, they are mostly
difficult to read and more importantly boring • Look careful at the dimensions of the y-axis of
your plot• give a presentation of your tables and figures
to other scientists and reward their suggestions