Katherine J. Harmon

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Introduction In North Carolina there has been an escalation of poisoning deaths. In 2011, the number of fatal poisonings was 1,368 deaths, with 91% classified as drug overdoses with the majority of those due to opioid analgesics.[1] Far greater numbers of drug overdoses result in hospitalization, emergency department (ED) or outpatient clinic visits, or(More)
BACKGROUND Traumatic brain injuries (TBIs) are a leading cause of injury morbidity and mortality in the United States. An estimated 1.7 million TBIs occur each year, and TBIs may lead to severe lifelong disability and death; even mild-to-moderate TBIs may have long-term consequences. North Carolina's population-wide data on TBIs are limited, so it is(More)
BACKGROUND Although fatal opioid poisonings tripled from 1999 to 2008, data describing nonfatal poisonings are rare. Public health authorities are in need of tools to track opioid poisonings in near real time. METHODS We determined the utility of ICD-9-CM diagnosis codes for identifying clinically significant opioid poisonings in a state-wide emergency(More)
The rate of older adult falls has increased dramatically in North Carolina. With screening and intervention, many falls can be prevented. To improve best practices, the Carolina Geriatric Education Consortium and other members of the North Carolina Falls Prevention Coalition have committed resources to train health care professionals in screening and(More)
X-ray phase-contrast imaging is a promising approach for improving soft-tissue contrast and lowering radiation dose in biomedical applications. While current tabletop imaging systems adapt to common x-ray tubes and large-area detectors by employing absorptive elements such as absorption gratings or monolithic crystals to filter the beam, we developed(More)
X-ray phase contrast imaging based on grating interferometers detects the refractive index distribution of an object without relying on radiation attenuation, thereby having the potential for reduced radiation absorption. These techniques belong to the broader category of optical wavefront measurement, which requires stepping the phase of the interference(More)
BACKGROUND The incidence of poisoning and drug overdose has risen rapidly in the USA over the last 16 years. To inform local intervention approaches, local health departments (LHDs) in North Carolina (NC) are using a statewide syndromic surveillance system that provides timely, local emergency department (ED) and Emergency Medical Services (EMS) data on(More)