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Data Presentation &Interpretation

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Summarizing data

Tables

Simplest way to summarize data

Data are presented as absolute numbers or

percentages

Charts and graphs

Visual representation of data

Data are presented as absolute numbers orpercentages

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Basic guidance when

summarizing data

Ensure graphic has a title

Label the components of your graphic

Indicate source of data with date

Proide number of obserations !n"##$ as a

reference point

%dd footnote if more information is needed

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Tables: Frequency distribution

ear !umber o" births&'(( )&

&'(& *+

&'(, -*

Set of categories with numerical counts

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Tables: #elati$e "requency

number of alues within an interal

total number of alues in the table

ear % births n' #elati$e "requency ('

&'((.&'(' /* ,-

&'&(.&'&' 0) /0

&',(.&',' *& /'Total &/, &((1(

# &((

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Tables

ear !umber o" birthsn'

#elati$e "requency('

&'((.&'(' /* ,-

&'&(.&'&' 0) /0

&',(.&',' *& /'

Total &/, &((1(

Percentage o" births by decade between )*++ and )*,*

Source2 31S1 Census data4 &'((.&','1

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-harts and graphs

Charts and graphs are used to portray2

Trends4 relationships4 and comparisons

The most informatie are simple and self5

e#planatory

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.se the right type o" graphic

Charts and graphs

6ar chart2 comparisons4 categories of data

Line graph2 display trends oer time

Pie chart2 show percentages or proportional

share

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Bar chartComparing categories

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Percentage o" new enrollees tested "or /I0 at each

site1 by quarter

7& 8an.9ar 7, %pr.8une 7/ 8uly.Sept 70 :ct.Dec

Data Source2 Program records4 %IDS ;elief4 8anuary ,((' . December ,(('1rce2

7uarterly Country Summary2

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/as the program met its goal2

Percentage o" new enrollees tested "or /I0 at each site1 byquarter

Data Source2 Program records4 %IDS ;elief4 8anuary ,((' . December ,(('11

=uarterly Country Summary2

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Stac3ed bar chart#epresent components o" whole & compare wholes

IV care

!umber o" 4onths Female and 4ale Patients /a$e Been

5nrolled in /I0 -are1 by 6ge 7roup

Data source2 %IDS;elief program records 8anuary ,((' 5 ,((&&

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8ine graph

!umber o" -linicians 9or3ing in 5ach -linic During ears );