Nursing Commons^™

A Two-Stage Cluster Sampling Method Using Gridded Population Data, A Gis, And Google Earth(Tm) Imagery In A Population-Based Mortality Survey In Iraq, Lp Galway, Nathaniel Bell, Al Shatari Sae, Amy Hagopian, Gilbert Burnham, Abraham Flaxman, Wiliam M. Weiss, Julie Rajaratnam, Tim K. Takaro

Faculty Publications

BACKGROUND:

Mortality estimates can measure and monitor the impacts of conflict on a population, guide humanitarian efforts, and help to better understand the public health impacts of conflict. Vital statistics registration and surveillance systems are rarely functional in conflict settings, posing a challenge of estimating mortality using retrospective population-based surveys.

RESULTS:

We present a two-stage cluster sampling method for application in population-based mortality surveys. The sampling method utilizes gridded population data and a geographic information system (GIS) to select clusters in the first sampling stage and Google Earth TM imagery and sampling grids to select households in the second sampling …

Gis And Injury Prevention And Control: History, Challenges, And Opportunities, Nathaniel Bell, Nadine Schuurman

Faculty Publications

Intentional and unintentional injury is the leading cause of death and potential years of life lost in the first four decades of life in industrialized countries around the world. Despite surgical innovations and improved access to emergency care, research has shown that certain populations remain particularly vulnerable to the risks and consequences of injury. Recent evidence has shown that the analytical, data linkage, and mapping tools of geographic information systems (GIS) technology provide can further address these determinants and identify populations in need. This paper traces the history of injury prevention and discusses current and future challenges in furthering our …

Modelling Optimal Location For Pre-Hospital Helicopter Emergency Medical Services, Nadine Schuurman, Nathaniel Bell, Randy L'Heureux, Syed M. Hameed

Faculty Publications

BACKGROUND: Increasing the range and scope of early activation/auto launch helicopter emergency medical services (HEMS) may alleviate unnecessary injury mortality that disproportionately affects rural populations. To date, attempts to develop a quantitative framework for the optimal location of HEMS facilities have been absent. METHODS: Our analysis used five years of critical care data from tertiary health care facilities, spatial data on origin of transport and accurate road travel time catchments for tertiary centres. A location optimization model was developed to identify where the expansion of HEMS would cover the greatest population among those currently underserved. The protocol was developed using …