GIS AND EPIDEMIOLOGY
Prototype Walkthrough & Layer Analysis of
Datasets
R. Uosef
WALKTHROUGH
ANALYZING DATASETS
The following information provides for
hypothetical relationships created by examining
the data used in the GIS Infectious Disease
(Autism) Prototype
 This analysis does not draw about definite
conclusions
 This analysis examines different dataset trends
and patterns individually and some datasets are
examined with one another
 User can use similar methods and/or different
datasets to cross examine and compare
information; drawing their own conclusions
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LAYER ANALYSIS
Data layers based on the high, medium and low levels of
autism prevalence reported in New Jersey, New York
and Florida with the US Census’ Median Household
Income and number of hospitals in the three states
LAYER ANALYSIS
New Jersey
- most areas shaded green,
- majority of the area has a relatively higher
household income when compared with other
states
- Relative to the household income (within
each state based on the median value for that
particular state) most hospital locations are
clustered together closest to New York City in
an area where the household income ranges
from $24,000 to more than $82,000
- household income relative to hospital
location shows that the lowest income is in an
area surrounded by higher income
- Compare to population here!
LAYER ANALYSIS
Hospitals in New York are located mainly in
areas with a household income of $24,001 to
$39,000. However, in New York City more
hospitals are found in areas with a
household income over $68,001
LAYER ANALYSIS
Florida hospitals
are located
mainly in areas
with a household
income of $24,001
to $39,000
LAYER ANALYSIS
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Diversity in the three states and the diversity index of
Autism patients by ethnicity can be overlapped to examine
patterns.
The first part of the chart looks at the “Prevalence of
Diversity” and examines the prevalence of autism for the
four years represented and categorizes them by different
ethnicities.
The second portion of the chart comes from the US Census
(http://quickfacts.census.gov/qfd/states/36000.html) and
examines as a whole the diversity of the population for
each state for a combined numbers of years in which the
US Census measures change.
This is intended to examine patterns between the
population diversity as a whole and the prevalence of
autism as a part of the whole, relatively over a particular
time that reflects change in diversity.
LAYER ANALYSIS
Table Info
LAYER ANALYSIS
Table Info
LAYER ANALYSIS
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The relationship between the total diversity in
each state versus the autism prevalence based on
diversity within that same state.
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We can see the relationship in the ratio comparison
between the two variables.
For instance, can this mean that if a state with a
particular diversity appears greater, then does the
data also shows a greater prevalence of autism?
Will this suggest that most white people show greater
autism prevalence then Asian people? And not
because autism targets white people more but
because there is a greater population?
LAYER ANALYSIS
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Maps below show the diversity index within each state examined. In New York and New Jersey
we see a relatively higher diversity index closest to New York City; whereas in Florida the
diversity index seems to be more spread out across the state
LAYER ANALYSIS
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Maps below show the diversity index within each state examined. In New York and New Jersey
we see a relatively higher diversity index closest to New York City; whereas in Florida the
diversity index seems to be more spread out across the state
Adding Hospitals
to Diversity layer
LAYER ANALYSIS
LAYER ANALYSIS
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Prevalence of autism Vs. Population under 18 years old Vs. Population per household Vs. Overall
population density (Comparing four layers in one table view and converting that to map view)
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Table 3 shows all three states have
relatively same percentage of
population under 18 years old. We
can also see that based on total
population New York has the
highest population density (also
known as the population count)
and the highest number of autism
prevalence. Yet although New
York has populations almost
double the density of New Jersey;
the rate at which autism
prevalence increases in New Jersey
is greater than that of New York
Table 4:
Land mass per state
Vs.
Total population density
LAYER ANALYSIS
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Population Vs. Hospital Locations (New York,
New Jersey & Florida)
The next 6 slides explore the relationship in the
three states based on Population density of both
overall population and Population under 18 years
of age Versus Hospital Locations
This examination will be helpful in analyzing the
proximity of hospitals in areas ranging from most
dense to least densely populated
LAYER ANALYSIS
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Population Vs. Hospital Locations (New York)
LAYER ANALYSIS
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Population Vs. Hospital Locations (New York)
LAYER ANALYSIS
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Population Vs. Hospital Locations (New Jersey)
LAYER ANALYSIS
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Population Vs. Hospital Locations (New Jersey)
LAYER ANALYSIS
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Population Vs. Hospital Locations (FLORIDA)
LAYER ANALYSIS
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Population Vs. Hospital Locations (FLORIDA)
LAYER ANALYSIS
Maps below represent data used to
construct tables 3 and 4, we can examine
relationships between percent populations
younger than 18, population density vs.
household size.
LAYER ANALYSIS
Maps below represent data used to
construct tables 3 and 4, we can examine
relationships between percent populations
younger than 18, population density vs.
household size.
LAYER ANALYSIS
Maps below represent data used to
construct tables 3 and 4, we can examine
relationships between percent populations
younger than 18, population density vs.
household size.
LAYER ANALYSIS
Maps below represent data used to
construct tables 3 and 4, we can examine
relationships between percent populations
younger than 18, population density vs.
household size.
LAYER ANALYSIS
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Prevalence of Autism Vs. Median home value Vs. Hospital locations
Median home value in USA is $186,200. Let’s examine the relationship
hypothetically between the value of a home and how conveniently a
hospital is located near that home.
LAYER ANALYSIS
Click for Analysis
LAYER ANALYSIS
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New York and New Jersey home values closer to
NYC seem to be the highest, above USA average,
whereas although Florida contains a few areas
with relatively high home values, the overall
home value in Florida is the lowest. Also
hospitals appear to be conveniently located near
areas with high home values; possibly making it
convenient for families to get immunization,
medical care, routine check-ups as well as
emergency care.
LAYER ANALYSIS
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Dataset Layers:
autismData08_11threeTOfive & autismData08_11threeTOtwentytwo (Autism Prevalence data)
Rain layers (NY, NJ, FL 2008-2009-2010-2011)
hsip_Njhospitals (New Jersey Hospitals)
Florida_Rural_Hospitals_and_Districts:http://services.arcgis.com/9Jk4Zl9KofTtvg3x/arcgis/rest/ser
vices/Florida_Rural_Hospitals_and_Districts/FeatureServer/0
Hospital locations in New York
State:http://services.arcgis.com/jDGuO8tYggdCCnUJ/arcgis/rest/services/Hospital_locations_in_Ne
w_York_State/FeatureServer/0
USA Diversity
Index:http://server.arcgisonline.com/ArcGIS/rest/services/Demographics/USA_Diversity_Index/Ma
pServer
USA Population Density (Mature
Support):http://server.arcgisonline.com/ArcGIS/rest/services/Demographics/USA_Population_Densi
ty/MapServer
USA Median Household Income (Mature
Support):http://server.arcgisonline.com/ArcGIS/rest/services/Demographics/USA_Median_Househo
ld_Income/MapServer
USA Average Household
Size:http://server.arcgisonline.com/ArcGIS/rest/services/Demographics/USA_Average_Household_S
ize/MapServer
USA Population Younger than Age 18 (Mature
Support):http://services.arcgisonline.com/ArcGIS/rest/services/Demographics/USA_Percent_Under
_18/MapServer
USA Median Home Value:
http://server.arcgisonline.com/ArcGIS/rest/services/Demographics/USA_Median_Home_Value/Map
Server
CONCLUSION
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