Seeing the Patterns in Space and Time

Workshops! GIS for Community Impact: From Technology to Translation – Oakland, CA

Posted on by BioMedware

Save the dates April 13 and 14: Oakland, California

April 13:  Pre-Workshop Short-course: Space Time Analysis for Health and the Environment

This 1-day class will provide instruction on the space-time analysis of data relating health events to potential sources of environmental exposures. Examples of data will include the time and place of residence of individuals with a given diagnosis, space-time paths of cases and controls over the life course, and cancer rates in local areas through time. We will focus on chronic diseases, such as cancer.

Instructor:  Geoffrey Jacquez, PhD

Suitable for:  Students, environmental and health faculty, researchers and community activists (a basic understanding of data and statistics would be useful).

April 14: Workshop on how to use geographic data to look at breast and other cancer risk factors in our physical and social environments and to inform prevention efforts.

(Supported by the California Breast Cancer Research Program award 21MB-0001 with space donated by The California Endowment.)

For additional information and registration details:

GIS Workshop Flyer

Impact of comorbidities on prostate cancer stage at diagnosis in Florida

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URO Today recently published the abstract of a research study by authors  Xiao H, Tan F, Goovaerts P, Adunlin G, Ali AA, Gwede CK, and Huang Y.

“To examine the association of major types of comorbidity with late-stage prostate cancer, a random sample of 11,083 men diagnosed with prostate cancer during 2002-2007 was taken from the Florida Cancer Data System. Individual-level covariates included demographics, primary insurance payer, and comorbidity following the Elixhauser Index. Socioeconomic variables were extracted from Census 2000 data and merged to the individual level data. Provider-to-case ratio at county level was also computed.”

SpaceStat software was utilized for multilevel logistic regression to assess associations between these factors and late-stage diagnosis of prostate cancer.

Read more >> here

BioMeanings Update January 2015

Posted on by BioMedware

Two proposal tips

We write a fair number of research proposals, with most of them going to the National Institutes of Health, and the Centers for Disease Control and surveillance. We also submit proposals to the National Science Foundation and NASA. For those researchers who are new to a proposal writing role here are a couple tips.

One of the first things to do after identifying the next “Big Idea” is to assess its potential viability and impact. Two items top the list. The first is the priority in terms of disease targeted; it is much easier to obtain funding for a disease with a large human and economic impact. One resource that may be of use is the global burden of disease, and of years of life lost (YYL). This article, published recently in The Lancet provides estimates from around the globe for both chronic and infectious disease burdens.

Second, if you are looking for funding in the U.S. it is important to consider what the funding organization’s budget and plan are for the near term. Remember the reviewers may not even be aware of the funding organizations research priorities. For NIH, the reviewers are external, and it is good proposal practice to remind them of the relevant NIH research priorities. A good portion of BioMedware’s research portfolio has been funded by the National Cancer Institute. Our 2015 proposals likely will incorporate information from NCI’s 2016 budget proposal and plan, which may be found here.

In summary, the message is to (1) seek to address important diseases, where importance is defined by human and economic costs; and (2) go after those proposal ideas that are highly relevant to the funding organization’s mission and budget plan.

Save the Date: April 13-14, 2015

GIS for Community Impact: From Technology to Translation

Organized by The Cancer Prevention Institute of California and Zero Breast Cancer
Location: The California Endowment, 1111 Broadway, Oakland, CA
Geoffrey Jacquez, PhD, President of BioMedware, and Keynote speaker is conducting the preconference workshop on April 13th, titled “Space Time Analysis Using SpaceStat”.

In the news: SpaceStat for spatial analysis

Recently published articles demonstrating how SpaceStat’s rigorous, statistical analysis methods are being utilized by researchers.


Geographical Disparities of Lung Cancer Mortality Centered on Central Appalachia

Timothy S. Hare, Chad Wells, Nicole Johnson; Morehead State University, Morehead, KY, USA
International Journal of Applied Geospatial Research, 5(4), 35-53, October-December 2014 35

“…We use ESRI’s ArcGIS for data processing and visualization and BioMedware’s SpaceStat for EDA, ESDA, OLS regression, spatial regression, and GWR. SpaceStat is a set of software tools for conducting a variety of spatial statisti¬cal analysis techniques (BioMedware, 2012). It supports dynamic and interactive analysis of linked tables, charts, and maps. SpaceStat calculates probability values (p-values) for observed test statistics by comparing them to their null distributions, which estimates the likelihood of the observed values in comparison with the null distribution. The spatial weights matrix used is queen’s case contiguity.”

Download a 14-day Free Trial of SpaceStat

The RUSLE erosion index as a proxy indicator for debris flow susceptibility

Alessandro Zini, Sergio Grauso, Vladimiro Verrubbi, Luca Falconi, Gabriele Leoni, Claudio Puglisi
Landslides, DOI 10.1007/s10346-014-0515-8
Received: 25 September 2013; Accepted: 14 August 2014

Background. Debris flows represent dangerous occurrences in many parts of the world. Several disasters are documented due to this type of fast-moving landslides, therefore, natural-hazard assessment of debris flows is crucial for safety of life and property. In this paper we investigated the effectiveness of the soil erosion index as debris flows susceptibility indicator. The relation between the erosion index, which was assessed by means of the Revised Universal Soil Loss Equation (RUSLE) model, and the inventory of debris flows that have occurred in an area in Sicily was investigated.

Method. To this aim, a geographically weighted logistic regression analysis (GWR) was carried out making use of SpaceStat. While traditional logistic regression aims to obtain an average parameter estimate over the whole territory under observation, the GWR attempts to gain point-to-point estimates. Moreover, the GWR technique may provide a better fit with experimental data.

Results. The results of the statistical analysis prove the existence of a significant connection between the observed debris flows and the RUSLE erosion index. Secondly, the complexity of the GWR model, based on non-fixed regression coefficients, points out that the same value of RUSLE index can have different effects in different locations. This result highlights the behavior of complex land systems in the real world, where different forces are acting (rain, running waters, internal water pressures, internal strains, gravity, etc.) and determine different point-to-point degrees of susceptibility to debris flows. On the basis of GWR parameters a scenario analysis regarding the area was conducted.

Download a 14-day Free Trial of SpaceStat

Follow Geoffrey Jacquez, PhD, on Twitter @GeoffJacquez.

Best wishes for your research efforts in 2015 and thank you for your interest in BioMedware.

Geoffrey Jacquez’s talk on the future of the CRCSI Health Program

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Due to an interrupted flight, Dr. Jacquez’s presentation was delivered via video at the CRCSI annual conference in Perth, Australia in November, 2014.  The vision addresses opportunities at the forefront of wearable sensors and the genome+, exposome and behavome.

Link to video –>


Ebola and “R naught”

Posted on by Geoffrey Jacquez, Ph.D.

There is a certain amount of false information regarding how infectious the Ebola virus is, see, for example, some of the statements by certain Congressman. Mathematical epidemiologists use something called “R naught”,​ the basic reproductive number, to quantify how many new cases arise, on average, from a given case.  These can be thought of as new cases caused by infection between a sick individual and those who have had contact with that sick person.

The World Health Organization recently completed a study that found R naught to be around 1.7 (e.g. so a case on average gives rise to about 1.7 other cases).  The challenge for infection control is to get R naught below the replacement rate, less than 1.0.  In contrast, R naught for the flu is greater than 10.  The Ebola virus is about 10 times less infectious than the flu.

The analysis is here:

Ebola Virus Disease in West Africa — The First 9 Months of the Epidemic and Forward Projections

Statistics Views – article “Arsenic Exposure, Bladder Cancer, and You: The Geostatistical Story You’ve Got to Read”

Posted on by BioMedware

Published in Statistics Views
Author: Lillian Pierson, P.E.

Since the dawn of time there’s been the haves and the have nots. Their stories precede them. While the moral and ethical viewpoints about economic disparity clash and rage, quietly in the backdrop, scientists are uncovering deeper truths about the extent to which we’re all affected.

Last year, researchers at the University of Exeter in the UK published a study that revealed a significant correlation between socio-economic status, body chemistry, and environmental exposure to harmful toxins. What they found is that the body of the average poor person has higher concentrations of lead, cadmium, and plastics, thought to be due to poor diet and a greater tendency for cigarette smoking among the poor. In contrast, rich people tend to have higher body chemistry concentrations of mercury, arsenic, and benzophenone-3, thought due to their greater consumption of shellfish and seafood, and the prevalent use of sunscreen among the middle-upper class. The study also confirmed what we’ve all known for quite some time, that chronic long-term exposure to chemical toxins usually causes adverse health effects.

But how, exactly, is our health affected? This question is central to the work of spatio-temporal epidemiologist, Dr. Pierre Goovaerts. Dr. Goovaerts is an established and long-respected leader in the fields of geostatistics and soil science, but he’s recently made a debut in the spatio-temporal epidemiology arena as well. Behind this recent career transition Goovaerts explains, “After 15 years devoted to the application of geostatistics to the characterization of contaminated sites, it seemed logical to wonder about the impact of this contamination on human health. After all, concern about human health should be one of the main drivers guiding the characterization and remediation of these sites.”

Read the rest of the article >>

BioMedware is pleased to announce its membership in the 43pl Consortium

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The 43pl consortium operates a unit trust which facilitates participation in the CRCSI by a large number of small to medium sized enterprises. Founded in 2003, the CRC for Spatial Information (CRCSI) is a research organisation funded by Australia’s Cooperative Research Centre Program and by participant contributions.

METRIC: Software to Measure Cancer Health Environment

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BioMedware announces the award of a contract from the National Cancer Institute titled “METRIC Software to Measure Cancer Health Environment“. This is an SBIR Phase 1 contract with a 9 month performance period beginning September 12, 2014. The Principal Investigator for the project is BioMedware’s Chief Scientist, Pierre Goovaerts, supported by Andy Kaufmann and Robert Rommel as software engineers.

The goal of this project is to develop the first software specifically designed for the access, creation and visualization of environmental measures related to cancer health behavior and resources, providing: 1) a user-friendly interface for locating, accessing and importing data into the existing Geographical Information System, 2) automated homogenization of data layers to a common geography, 3) flexible construction of metrics to characterize the food, physical activity and health care access environments, 4) visualization, exploratory data analysis and ranking of the results to identify geographical disparities, and 5) efficient export of results into an Esri shapefile format, Excel workbooks and XML. Software architecture for the prototype will be built to extend and customize BioMedware’s SpaceStat platform. Software design will focus on providing a user-centered design to accomplish the workflow tasks described above.

Keep watching our site, we should have a project page up soon!

Drones, skyjacks, and business ecosystems

Posted on by Geoffrey Jacquez, Ph.D.

A business venue being explored by Amazon and smaller companies as well is delivery via drones. Interesting to see that the technology for skyjacking drones is already being pursued.  If you consider drone piracy to be a business model (and I guess it should be considered as one, even though there are legal and ethical considerations) then we are beginning to see the emergence of a business ecosystem.  Here, delivery by drones making possible a new business model — drone capture and piracy.  That is the idea behind a business ecosystem — innovations making possible the emergence of entirely new businesses, often building on the products of other businesses.

If you are interested in this sort of thing you might look at the following:

How to build a raspberry Pi quadcopter:  https:src=”//

The Skyjack drone: src=”//

CRCSI Lecture & Lunch Session with Dr. Geoffrey Jacquez

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Friday 22nd August 2014
12:30pm – 2:00pm

(Perth, Australia) The CRCSI invite you to attend a short presentation from Geoffrey followed by discussion and networking with colleagues in the Health Program.

Geoffrey Jacquez has been the Science Director of the CRCSI Health Program for two years and is in Perth for a series of workshops and meetings. Geoffrey has over 20 years’ experience as an active researcher in cancer epidemiology and geography. He has been developing novel statistical methods for analysing case-control data for mobile individuals, and the assessment of space-time interaction for diseases with long latency in mobile populations. Most recently he has been exploring the challenges around the quantified self and crowd sourcing of the genome+, exposome and behavome.

Discussion Topic – “Project Us”
For the health-concerned who wishes to optimize or better their own or their family’s well-being, Project Us is a wearable device that will measure and quantify environmental level data to understand potential risk factors. Compared to Lapka, we will provide actionable recommendations to actively manage our users’ well-being. As a wearable device, the data will also be hyper-specific for each user, as opposed to existing static environmental detectors. We believe this will be a success because the environment is a major factor in maintaining good health and consumers have adopted wearable devices and mobile apps to understand and improve their wellness.

RSVP to Narelle Mullan, Health Program Manager on or 0466 779 263

Unit 6, 12 Brodie Hall Drive
Technology Park, Bentley
Easy parking nearby

Light lunch will be provided

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