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Doctoral Dissertation Awards and New Investigator Awards  

2004 New Investigator Abstracts

Nancy Glass PhD, MPH, MSN
Oregon Health & Science University
3181 SW Sam Jackson Park Road
Mailcode: SN-Population Based Nursing
Portland, OR 97239-3098
Phone: 503-494-4670
Fax: 503-494-4678
glassn@ohsu.edu

Project Title: Assessing Risk of Repeat Violence in Abusive Female Same-Sex Intimate Relationships
Project Period: 8/01/04-7/31/05


DESCRIPTION: Women who experience intimate partner violence (IPV) are at high risk for repeat victimization. Repeat victimization by an intimate partner increases women's risk of injuries, disabilities, and death. Identifying women who are most at risk is important because it allows for preventive action with both victims and perpetrators. Among those identification methods most successfully used is the Danger Assessment 2 (DA 2), a tool that is both sensitive and specific in identifying women at risk for repeat violent victimization and homicide in heterosexual intimate relationships. The extent to which this important risk assessment tool can predict repeat victimization in female same sex IPV relationships, however, is unknown. The long range goal is to reduce the risk of negative health outcomes, including fatal and near fatal injuries, among women in same sex intimate relationships through the development and utilization of effective culturally-competent, community partnered interventions and policies. The objective for this application is to scientifically evaluate for the first time the effectiveness of a previously validated, frequently used instrument to assess the risk of repeat violent victimization of women in abusive same sex intimate relationships. This new investigator application is highly dependent on mentorship and consultation from violence related injury research experts and collaboration with community agencies. Established partnerships ensure access to a statewide ethnically diverse sample of 248 adult female victims and perpetrators in current or past year abusive same sex intimate relationships to participate in focus groups and complete survey questionnaires. The knowledge generated from this pilot study will: 1) provide a validated outcomes instrument for future intervention studies with sexual minority victims and perpetrators; 2) assist health care professionals, domestic violence and victim advocates, law enforcement, the judiciary, and probation officers to promote the health and safety of women from diverse communities; and 3) improve access to culturally-appropriate community resources.


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Joshua B. Kay, PhD
The Regents of the University of Michigan
1500 E. Medical Center Drive
Ann Abor, MI 48109
Phone: 734-647-5195
Fax: 734-615-0995
E-mail: jbkay@umich.edu
mailto:jbkay@umich.edu

Project Title: Pediatric Mild Head Injury: Definition and Consequences
Project Period: 8/01/04–07/31/05


Description: More than 1 million children in the United States sustain traumatic brain injury each year. Approximately 90% of pediatric brain injuries are described as mild, yet mild traumatic brain injury (MTBI) research is plagued by problems of classification, measurement, and generalization. This prospective, longitudinal study seeks to define pediatric MTBI according to empirically supportable criteria, to measure cognitive and psychological consequences on multiple occasions, and to account for the contribution of pre-morbid characteristics to the symptoms children experience post-injury.

Researchers will recruit 50 children ages 10 to 17 with MTBI who are treated in the emergency department (ED) but not hospitalized. MTBI will be defined by blunt trauma or acceleration-deceleration injury to the head followed by any combination of brief loss of consciousness (<30 minutes), brief post-traumatic amnesia (<24 hours), alteration in mental state at the time of the accident, and neurological deficits that may be transient. Glasgow Coma Scale scores will be 13 to 15 with no intracranial pathology on any neuroimaging studies. Fifty control children with comparably severe injuries not involving the head will be recruited in the ED. Relevant historical and demographic information will be obtained. Pre-injury psychological, behavioral, and executive functioning will be assessed via parent checklists. Neurocognitive functioning will be measured with instruments known to be sensitive to brain injury. Post-concussion symptoms (PCS) will be assessed using a questionnaire. The assessments will occur in the ED, 1 week later, and 1 month thereafter. The MTBI group is expected to demonstrate more PCS and neurocognitive deficits than controls immediately post-injury and at the 1 week follow up point. Considering prior findings, it is not clear whether the MTBI group will have more PCS and neurocognitive deficits 4 to 5 weeks post-injury. This study will contribute to the consistent definition of MTBI in children and set the stage for further investigations of the long-term consequences of head injury in children.



Wendy Lane, MD, MPH
University of Maryland School of Medicine
660 West Redwood Street
Howard Hall
Baltimore, MD 21201
Phone: 410-706-7865
Fax: 410-706-4425
E-mail: wlane@epi.umaryland.edu

Project Title: Evaluation of a Program to Prevent Abusive Head Trauma
Project Period: 8/01/04–7/31/05


Description: Child abuse is the leading cause of serious head injury in infants and toddlers, and it is the primary cause of infant death from injury. The incidence of abusive head trauma (AHT) in infants is more than 30 per 100,000. Approximately 25% of victims die from their injuries, and the majority of survivors have significant long-term consequences. Few programs aimed at the prevention of AHT have been developed, and none has been rigorously evaluated.

The long-term objective of this project is to prevent abusive head trauma (AHT) in young children. Its specific aims are 1) to determine the effectiveness of a hospital-based program to reduce the incidence of AHT in young children, and 2) to examine the extent to which maternal risk factors affect the risk for AHT. An AHT prevention program is currently underway at one Baltimore area hospital. The program educates postpartum parents about AHT and recommends ways to manage both their infants' crying and their own possible frustration. In this project, researchers will use a case control design to systematically evaluate the program’s effectiveness. Cases will be identified by medical records search at the two Baltimore metropolitan area hospitals, where AHT cases are referred, and at the Office of the Chief Medical Examiner. Three controls will be selected for each case. Both cases and controls will be matched to birth certificate data to determine birth hospital and maternal demographics. Rates of exposure to the intervention program among cases and controls will be compared. In addition, researchers will compare rates among cases and controls of risk factors including poverty, teenage pregnancy, late prenatal care, low birth weight, and single parenthood.


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Dominique Lord, PhD
Texas A&M Research Foundation
Center for Transportation Safety
Texas Transportation Institute
3135 TAMU
Texas A&M University Systems
College Station, TX 77843-3135
Phone: 979-458-1218
Fax: 979-845-4872
E-mail: d-lord@tamu.edu

Project Title: Reducing Older Driver Injuries at Intersections
Project Period: 09/01/03–08/31/04


Description: There is a significant opportunity to reduce motor vehicle crashes through improved highway design practices, particularly at intersections, where the highest proportion of crashes result in serious injuries. Experience in the United States and in other countries suggests that traffic conflicts and overall safety at intersections can be dramatically improved through the installation of modern roundabouts. But in the United States, subjective data show that drivers, especially older drivers, fear what they perceive to be elevated demands and risks associated with roundabouts, and may avoid their use.

The goal of this research is to enhance the safety and mobility of persons ages 65 and over in the United States through more elder-friendly designs of roundabouts. This study will be accomplished in four tasks that focus on (1) problem identification; (2) selection of potential countermeasures; (3) countermeasure evaluation; and (4) documentation of research results, citing anticipated benefits in terms of the prevention of injuries related to automobile crashes involving older drivers. This research will result in recommendations for new guidelines for highway design developed for modern roundabouts, where the overall goal is to foster the use of these facilities by the groups most at risk of injury due to intersection crashes.




Lorin Maletsky, PhD
University of Kansas Research Center
3005 Learned Hall
1530 W. 15th Street
Lawrence, KS 66045-7609
Phone: 785-864-2985
Fax: 785-864-5254
E-mail: maletsky@ku.edu

Project Title: Mechanical Simulation to Evaluate Injury Mechanisms of Ligaments in the Knee
Project Period: 8/01/04–07/31/05


Description: The frequent occurrence of Anterior Cruciate Ligament (ACL) injury and subsequent surgical reconstruction of the ligament make ACL failure a prominent national health concern. This biomechanics research study examines the injury mechanisms of the ACL in sports, recreation, and exercise activities, with the ultimate goal of evaluating interventions and reducing the risk of injury. No study has been found that used combined loading to cause the ACL to fail or that generated concurrent injuries that often accompany ACL failure. Therefore, while existing studies have provided important insights into the normal strain on the ACL and the effects of ACL injury on the knee, a better model to study the injury mechanisms of the ACL and bridge the gap between experimental in vitro strain data and clinical failures is desired.

The specific aim of this project is to develop and demonstrate a loading and motion protocol to repeatedly rupture the ACL of a cadaver by dynamically simulating a loss of control cutting maneuver that causes similar injuries to the knee as seen clinically. A better understanding of the mechanism of ACL injury will inform the development and evaluation of preventive interventions and post-injury reconstruction strategies. One predisposition that will be examined is that subjects with smaller femoral notch widths, independent of gender, will require lower magnitudes of loads to cause failure of the ACL during a simulated cutting maneuver. Previous research indicates that the greatest potential for ACL injury occurs during initial weight acceptance due to the combined anterior force, internal torque, and valgus moment. A dynamic knee simulator will be used to apply the tri-axial physiological loading from a cutting maneuver to eight cadaver knees. To rupture the ACL, the failure profile will be repeated and increased until the ACL breaks or the condition of the knee stabilizes, determined by repeated laxity results. Strain in the ACL will be recorded during these tests using small transducers attached to the ligament. A sports medicine physician will evaluate the condition of the knee and compare it with clinical observations to determine how similar the injuries are to clinical cases. The broad implications of this work are that the failure methodology developed will enable researchers to perform studies not previously possible, specifically investigations of correlations between ACL injury and knee anatomy and characteristics.

 


Karen Ann McDonnell, PhD
The George Washington University
School of Public Health and Health Services
Maternal and Child Health Program
2175 K Street, NW, Room 719
Washington, DC 20037
Phone: 202-467-2282
Fax: 202-416-0433
E-mail: sphkxm@gwumc.edu

Project Title: Concept Mapping: An Innovative Method to Measure Supervision
Project Period: 8/01/04–7/31/05


Description: Unintentional injuries are the leading causes of mortality among children under age 5 in the United States. There is a dearth of information regarding the conceptualization of child supervision, which is particularly important for young children whose protection often depends on the actions of their caregivers. Determining the role supervision plays in preventing injuries is precluded by methodological challenges in developing appropriate, responsive, and reliable measures of supervision. Measures of supervision that are derived from child caregivers themselves are needed because the concept and the actions that define it may differ among different population groups, by styles of parenting, and for different injury mechanisms. Concept mapping, the method of investigation used in this study, is an innovative technique to address this need in injury prevention. Concept mapping is an inductive, structured qualitative/ quantitative methodology that will be used to explore how caregivers of children under age 5 conceptualize and operationalize child supervision.

As a first step in addressing the role of child supervision, this study will use the concept mapping process of brainstorming groups, sorting and rating groups, and discussion/interpretation groups to conceptualize child supervision's role in injury prevention. Concept mapping techniques will allow researchers to explore sociodemographic and parenting style variations in the identification of behaviors that are central to child supervision, examine conceptualizations of child supervision with regard to injury mechanisms, and identify child supervisory styles and processes that are perceived to be amendable to change.



 

Kieran J. Phelan, MD
Cincinnati Children’s Hospital Medical Center
3333 Burnet Avenue
MLC 7014
Cincinnati, OH 45229-3039
Phone: 513-636-3231
Fax: 513-636-0171
E-mail: Kieran.phelan@cchmc.org

Project Title: Childhood Residential Injury and Caregiver Supervision
Project Period: 09/01/03–08/31/04


Description: Unintentional injury is the leading cause of death and disability in U.S. children, and the home is the single most common location of injury. The first specific aim of this project is the design, conduct, and analysis of a prospective 36-month randomized controlled trial to reduce residential unintentional injury. The intention-to-treat analyses of the longitudinal data will involve repeated measures, following children from birth to 36 months, the group at highest risk for residential injuries. In secondary analysis, the project will examine the effect of the intervention by levels of parental supervision to test whether the effect was greater for households with lower parental supervision.

The second specific aim will examine causal determinants of parental supervision and its ultimate effects on unintentional residential injury. Using a theoretical model of supervision, data developed in the first specific aim—together with validated measures of caregiver traits such as maternal depression (Beck Depression Inventory), parental health locus of control, and child injury-risk behavior (Injury Behavior Checklist)—will be used to examine determinants of supervision. Unintentional residential injury will be modeled by integrating the quality of residential hazards, caregiver beliefs about residential safety, caregiver locus of control and depression, the quantity and quality of supervision, and child injury-risk behavior. A structural equation model incorporating parental supervision, the burden of residential hazards, and children’s injury-risk behaviors will be developed to explain residential injury. Maternal depression and other caregiver characteristics will in turn explain parental supervision.


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Charles W. Pruitt, MD
Eastern Virginia Medical School
Children’s Hospital of The King’s Daughters Health System
Emergency Medical Department
601 Children’s Lane
Norfolk, VA 23507
Phone: 757-668-9222
Fax: 757-668-7568
E-mail: pruittcw@chkd.com

Project Title: Oceanfront Injury Prevention
Project Period: 09/01/03–08/31/04


Description: Drowning is the second leading cause of unintentional injury and the fourth leading cause of fatal injury among children. To date, few studies analyze the role of beach-related injuries in the spectrum of childhood injury and death. Furthermore, interventions to decrease beach injury have not been evaluated for efficacy, possibly due to a lack of quantitative measures of beach safety. The objective of this project is to decrease the overall childhood morbidity and mortality by creating a community injury prevention model to reduce beach-related injury risk behavior and disseminating the model to a national audience. To reduce drowning and other water-related injuries among children, the investigator will develop a multifaceted education intervention using a local working group composed of members of an existing successful coalition that has experience changing behavior at the community level. In addition, the investigator will develop quantitative measures of injury risk that can be used to evaluate the success of the intervention. Finally, the investigator will conduct a pilot study of the intervention and safe beach indices by comparing outcomes before, during, and after implementation of the intervention at a single oceanfront beach in Virginia Beach, Virginia.

The project aims follow:

1. Develop a Safe Beach intervention with the goal of decreasing beach-related injuries and injury risk behavior of children and their parents;
2. Develop and validate quantifiable measures of beach safety, including population density, and environmental and behavioral assessment tools;
3. Disseminate data on the effectiveness of the Safe Beach intervention to southeastern Virginia and other regions of the country. The primary outcome is to determine the effectiveness of an injury prevention model developed by a community-based coalition in decreasing childhood morbidity and mortality resulting from drowning and other beach-related injuries.
 

 

Alyssa Ann Rheingold, PhD
Medical University of South Carolina
National Violence Against Women Prevention Research Center
P.O. Box 250852
165 Cannon Street
Charleston, SC 29325
Phone: 843-792-2945
Fax: 843-792-3388
E-mail: rheingaa@musc.edu

Project Title: Primary Prevention of Child Sexual Abuse
Project Period: 09/01/03–08/31/04


Description: Changing community attitudes, knowledge, and behavior is a crucial first step towards primary prevention of child sexual abuse (CSA). This project consists of two complimentary studies to increase understanding of the effects of a community-based media program aimed at raising awareness of the prevalence and consequences of CSA and educating the public about related prevention and response strategies. The first study will conduct a controlled evaluation of mass media products developed by From Darkness to Light (DTL), a national, non-profit organization seeking to protect children from sexual abuse. Participants will be assigned to one of four conditions: public service announcements, educational booklet, public service announcements plus educational booklet, and no media exposure. Participants will be surveyed immediately after exposure to the media products and 1 month later to determine the efficacy of the various prevention strategies for improving adults’ knowledge, attitudes, and preventive behaviors regarding CSA. The second study will assess the feasibility of this intervention by obtaining community members’ perceptions, opinions, and recommendations about the content and presentation of the media campaign by conducting six ethnically homogeneous focus groups. Results from these two studies will provide useful information for approaching the problem of CSA prevention and identify possible strategies for refining prevention messages.

 


Stanley Sciortino, PhD
San Francisco Department of Public Health
Community Health Education Section
30 Van Ness Avenue, Suite 2300
San Francisco, CA 94102
Phone: 415-581-2419
Fax: 415-581-2490
E-mail: Stanley.sciortino@sfdph.org

Project Title: Safe Streets: GIS Analysis and Countermeasure Evaluation
Project Period: 09/01/03–08/31/04


Description: This project extends the work of the Departments of Public Health and Parking and Traffic in the County of San Francisco to better understand pedestrian safety and pursue intervention strategies. A systematic analysis of pedestrian injury collision patterns is now needed, along with pilot studies that evaluate the effectiveness and suitability of countermeasures. This project has three aims:

Aim 1: Environmental Hazard Analysis for San Francisco. Researchers will use recently collected multi-source pedestrian data (injuries, deaths, volume) and environmental data (traffic signals, traffic volume, street width) in a geographic information system (GIS) to analyze pedestrian injury outcomes by location. A Poisson regression analysis will identify environmental risk factors for pedestrian injuries. Pedestrian counts, Census 2000 residence data, or Census employment information will be used as the denominator, stratified by age group, with an emphasis on the young and the elderly. This analysis will be used to identify intersections, neighborhoods, and traffic corridors that are the most hazardous to pedestrians and the environmental risk factors that constitute those hazards.

Aim 2: Evaluation of Countermeasures. An environmental countermeasure—special pedestrian signals—already or soon to be in place in San Francisco will be evaluated. Evaluation will include a before-and-after design for each intervention, where possible, and the use of comparison intersections, selected through the use of geographic models developed in Aim 1. Pedestrian behavioral outcomes and pedestrian-vehicle conflicts, a surrogate measure for collisions, will be used to evaluate the interventions. Actual collision data will be used as well, but may not rise to statistical significance due to the length of this study.

Aim 3: Dissemination of Results. In addition to scientific peer-reviewed publication, dissemination to the local community through community-based organizations and city and county government will be ongoing through the Community Health Education Section of the Department of Health.

 

Kelli England Will, PhD
Eastern Virginia Medical School
Center for Pediatric Research
855 W. Brambleton Avenue
Norfolk, VA 23510-1001
Phone: 757-668-6449
Fax: 757-668-6495
E-mail: willke@chkd.org

Project Title: Boost 'em in the Back Seat: A Safe Ride Program
Project Period: 8/01/04–7/31/05



Description: Motor vehicle crashes are the leading cause of death for children from 1 to 14 years of age. The odds of motor vehicle crash injury to children ages 4 to 7 are 59% lower when riding in belt positioning booster seats than when riding in safety belts alone, and rear seating can reduce the risk of death to child motor vehicle passengers by as much as 46%. Despite these facts, 90% of booster-age children are prematurely graduated to adult safety belts, and 30% of children are permitted to ride in the front seats of vehicles. This project will develop and evaluate an efficient process for disseminating preventive messages regarding booster seats and rear seating to large numbers of parents via partnership with community preschool and daycare programs.

Considerable research on other health topics indicates that persuasive and risk communication tactics have a greater likelihood of motivating the adoption of protective behaviors than do traditional messages. The current research expands on this premise by developing a novel 5-minute video that is framed according to such efficacious risk communication guidelines. Specifically, the video will include crash test footage, portraying the power of crash forces and evoking high emotion by means of vivid imaging. Such communication tactics are known to motivate maximum behavioral change; however, the literature indicates that this method has not yet been employed in child passenger safety programming. The effectiveness of the video-based program will be piloted at two large, representative preschool/daycare programs, using two similar control sites for comparison. The program will engage the assistance of community-based coalitions and will include incentives for participating preschool/daycare staff. As part of the evaluative process, caregivers will complete pre-post knowledge and practice surveys regarding back seat and booster seat use and pre-post risk estimations related to childhood motor vehicle hazards. In addition, researchers will observe booster seat and rear seat use in preschool parking lots before, during, and after program implementation. It is hypothesized that families exposed to the video-based program, compared with those in the control schools, will have a) increased knowledge about causes of injury and reasons for booster seat and rear seat use; b) a more realistic assessment of personal risk; and c) greater use of booster seats and rear vehicle seating when age appropriate. The long-term goal for the program, if effective, is to package it for district-wide adoption and broad-scale dissemination.


 

Huiyun Xiang MD, MPH, PhD
Children’s Research Institute
700 Children’s Drive
Columbus, OH 43205
Phone: 614-722-5961
Fax: 614-722-2448
E-mail: xiangh@pediatrics.ohio-state.edu

Project Title: Injury Diagnosis Code Accuracy in Medicaid Claims Data
Project Period: 8/01/04–7/31/05


Description: This project will validate the childhood injury diagnosis codes in Medicaid emergency department (ED) claims data. Medicaid claims data are readily available for injury research and program evaluation due to mandatory submission of such data by all states to the Center for Medicare and Medicaid Services. However, little is known about the accuracy of the injury diagnosis codes in those data. The specific aims of this study are to 1) examine the quality of key demographic variables in Medicaid claims data, (2) investigate the accuracy and sensitivity of injury diagnosis codes to identify children's injuries, and 3) evaluate comparability of the NEISS and the ICD 9 CM injury diagnosis codes. A stratified sample from 21,554 injury cases captured by the NEISS in 2003 at the study site will result in 851 Medicaid injury cases. This study will link injury data captured by the NEISS with Medicaid claims data. The investigator will use standards in CDC’s Data Elements for Emergency Department Systems to examine the data quality of key demographic variables (e.g., date of birth and gender) in Medicaid claims data. Medical records review will investigate the accuracy and sensitivity of ICD 9 CM injury diagnosis codes. An innovative bridging scheme will evaluate the comparability of the NEISS injury diagnosis codes and ICD 9 CM injury diagnosis codes. This project is the first part of a multi-component research program developed by the applicant to investigate injuries among poor children and those with disabilities. If proved valid and reliable, funding will be sought next by the applicant to use Medicaid claims data to study the injury medical care costs among Medicaid children and the injury risk among children with mental health problems.


Jiangyue Zhang, PhD
Medical College of Wisconsin
Department of Neurosurgery
9200 West Wisconsin Avenue
Milwaukee, WI 53226
Phone: 414-384-2000
Fax: 414-384-3493
E-mail: Jy-zhang@mcw.edu

Project Title: Patient-specific Modeling for Pediatric Head Injury Biomechanics
Project Period: 10/01/03–09/30/04


Description: Head injuries in pediatric patients is poorly understood from a biomechanical perspective. These injuries are intrinsically linked to geometry and material properties of the brain and skull. This project will use patient-specific finite element models (FEMs), reconstructed from patient computer tomography (CT) scans, to study impact response and injury mechanisms in pediatric patients. The tissue-level head injury criteria will be identified by comparing results from patient-specific FEMs with brain injuries in actual patients as found on CT scans. Parametric studies will also be performed to study the effects of head geometry and site of impact on impact response and injury mechanisms.

The long-term objective of this project is to use a patient-specific FEM to investigate the brain injury of a specific pediatric patient at all ages. A family of patient-specific FEMs will be built for a pediatric population as a function of age. Patient-specific head injury studies will not only help clinicians understand how injuries occur in specific patients, but also help in the development and evaluation of safety protection devices for this population. As a short-term (1-year) goal, 10 patients (ages 5 to 7 months) will be selected and patient-specific FEMs will be reconstructed from patient CT scans by using MIMICS software and I-DEAS. Each model will be exercised under the known impact scenario obtained from the clinical history of the patient. The tissue-level head injury criteria are obtained by comparing results from FEMs with brain injuries found in CT scans. The models will then be applied with the same traumatic loading to study injury differences because of geometry between these models. The difference in brain injury resulting from site of impact will also be studied by applying the load at different anatomic sites.
 

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