6 - 1 Module 5: Bar Chart This module focuses on the bar chart, one of the more common types of...
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Transcript of 6 - 1 Module 5: Bar Chart This module focuses on the bar chart, one of the more common types of...
6 - 1
Module 5: Bar Chart
This module focuses on the bar chart, one of the more common types of graph used in public health.
Reviewed 15 April 05 /MODULE 5
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Composition of Food Commercials on Black Prime Time and General Prime Time
0
5
10
15
20
25
30
35
Black Prime Time General Prime Time
Pe
rce
nta
ge
of
po
pu
lati
on
Fast Food
Candy, Chocolate
Soda
Other Beverages (coffee,water etc)Other Deserts
Bread, Grains
Other (snacks,restaurants, etc)Chicken, Turkey
Alcohol
A Typical Bar Chart
Source: Am J Public Health, Mar. 2003;93:440
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Characteristics of Bar Charts
• Consist of horizontal or vertical bars with a space between bars
• Ideal for nominal and ordinal scales
• Avoid numbers at top or end of bars
• Avoid scale breaks
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Source: Am J Public Health, May 2004;94:760
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Source: Am J Public Health, May 2004;94:793
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Source: Am J Public Health, May 2004;94:872
7
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Source: Am J Public Health, Mar. 2004;94:386
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Source: Am J Public Health, Mar. 2004;94:386Percentage of Disability-adjusted life years (DALYs) owing to broad care needs (long-term care
and management)
89.7%
8.7%
1.4%
0.1%
89.0%
5.3%
3.7%
2.0%
72.1%
3.9%
1.8%
46.5%
46.1%
2.6%
4.7%
22.2%
0.0% 10.0% 20.0% 30.0% 40.0% 50.0% 60.0% 70.0% 80.0% 90.0% 100.0%
Broad Cause: group I
Broad Cause: group II
Broad Cause: group III
Broad Cause: undetermined
Broad Care needs:acute andepisodic
Broad Care needs:long-term, highmortality
Broad Care needs:long-term, lowmortality
Broad Care needs: undetermined
Percentage of DALYs
Older than 5 yearsYounger than 5years
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Source: Am J Public Health, Dec. 2003;93:2034
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Source: Am J Public Health, July 2000;90:1068
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Source: Am J Public Health, July 2000;90:1068
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Source: Am J Public Health, July 2000;90:1068
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Bar Chart with Scale Break
425
525
625
725
825
925
1025
1125
1225
1325
1425
1 2 3 4 5 6 7 8 9
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Bar Chart with Scale Break
300
400
500
600
700
800
900
1000
1100
1200
1300
1 2 3 4 5 6 7 8 9
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Bar Chart without Scale Break
0
100
200
300
400
500
600
700
800
900
1000
1 2 3 4 5 6 7 8 9
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Bar Chart with Scale Break
0
100
200
300
400
500
600
700
800
900
1000
1 2 3 4 5 6 7 8 9300
400
500
600
700
800
900
1000
1100
1200
1300
1 2 3 4 5 6 7 8 9425
525
625
725
825
925
1025
1125
1225
1325
1425
1 2 3 4 5 6 7 8 9
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Bar Chart with Scale Break
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Hig
h
3rd
Qu
art
ile
2n
d Q
ua
rtile
Lo
wHigh
3rd Quartile2nd Quartile
Low
91
2.3
86
1.8
82
9.1
80
70
150
300
450
600
750
900
1050
Age & Sex Adjusted Total Mortality Per
10,000
Income Inequality Quartiles
Per Capita Income Quartiles
Age and Sex Adjusted Total Mortality rates by Income Inequality Quartiles and Per Capita Income Quartiles, in 3067 Counties in the
Contiguous United States
Bar Chart without Scale Break
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Source: Am J Public Health, May 2003;93:772
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Average Life Span by Peerage Type
0 10 20 30 40 50 60 70 80
Baronet
Scottish Lord
Baron
Viscount
Earl
Marquess
Duke
Life Span, yInherited-Title Holders
First-Title Holders
Source: Am J Public Health, May 2003;93:772
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Source: Am J Public Health, Dec. 2003;93:2121
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Source: Am J Public Health, June 2004;94:1050
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Source: Am J Public Health, June 2004;94:1050
Conditions for Which Patients were referred for treatment
0 20 40 60 80 100 120
Endocrine
Blood
General
Circulatory
Respiratory
Gynecologic
Headache
Digestive
Skin
Anxiety
Arthritis
Back and Neck
Co
nd
itio
n
Number of Patients