- Gun Ownership and Violence Research
- Suicide and Self-Harm Studies
- Injury Epidemiology and Prevention
- Homicide, Infanticide, and Child Abuse
- Trauma and Emergency Care Studies
- Intimate Partner and Family Violence
- Traumatic Ocular and Foreign Body Injuries
- Cardiac Arrest and Resuscitation
- Crime Patterns and Interventions
- Public Health Policies and Education
- Autopsy Techniques and Outcomes
- Emergency and Acute Care Studies
- Influenza Virus Research Studies
- Vaccine Coverage and Hesitancy
- Homelessness and Social Issues
- Health disparities and outcomes
- Migration, Health and Trauma
- Child Abuse and Trauma
- Bacterial Infections and Vaccines
- Traumatic Brain Injury and Neurovascular Disturbances
- Traffic and Road Safety
- Viral Infections and Vectors
- Traumatic Brain Injury Research
- Posttraumatic Stress Disorder Research
- Restraint-Related Deaths
University of Washington
2016-2025
University of Michigan
2019-2024
Seattle University
2016-2024
Harborview Injury Prevention and Research Center
2014-2023
Johns Hopkins University
2023
University of Colorado Anschutz Medical Campus
2023
Medical College of Wisconsin
2023
American College of Surgeons
2023
American Academy of Pediatrics
2023
American College of Physicians
2023
In the United States, children receive five doses of diphtheria, tetanus, and acellular pertussis (DTaP) vaccine before 7 years age. The duration protection after DTaP is unknown.We assessed risk in California relative to time since fifth dose from 2006 2011. This period included a large outbreak 2010. We conducted case-control study involving members Kaiser Permanente Northern who were vaccinated with at 47 84 months compared confirmed by positive polymerase-chain-reaction (PCR) assay two...
The incidence of sports- and recreation-related concussions (SRRCs) in the United States is unknown. More than 44 million youth participate sports annually, thus understanding frequency SRRCs children important on a population level. Our objective was to determine number occurring annually among US ≤18 years old.We identified using 3 national databases: MarketScan, National Electronic Injury Surveillance System, High School Sports Related Reporting Online. We determined seen health care...
Violence in its many forms can affect the health of people who are targets, those perpetrators, and communities which both live. In this article we review literature on consequences violence, including child physical sexual abuse, intimate partner elder youth bullying. The biological effects violence have become increasingly better understood include brain, neuroendocrine system, immune response. Consequences increased incidences depression, anxiety, posttraumatic stress disorder, suicide;...
During the 1990s, United States switched from combined diphtheria, tetanus toxoids, whole-cell pertussis (DTwP) vaccines to acellular (DTaP) because of safety concerns. After a 2010-2011 outbreak, we sought evaluate whether disease risk in 10 17 year olds differed between those who previously received DTwP DTaP.A case-control study among individuals born 1994 1999 4 pertussis-containing during first 2 years life at Kaiser Permanente Northern California (KPNC). We separately compared...
OBJECTIVES To examine patterns and trends of undervaccination in children aged 2 to 24 months compare health care utilization rates between undervaccinated age-appropriately vaccinated children. DESIGN Retrospective matched cohort study. SETTING Eight managed organizations the Vaccine Safety Datalink. PARTICIPANTS Children born 2004 2008. MAIN EXPOSURE Immunization records were used calculate average number days undervaccinated. Two cohorts created: 1 with who for any reason because parental...
Metabolic changes after maternal bariatric surgery may affect subsequent fetal development. Many relevant perinatal outcomes have not been studied in this postoperative population, and the risks associated with short operation-to-birth (OTB) intervals well examined.To examine risk for complications women a history of (postoperative mothers [POMs]) by comparing them without operations (nonoperative [NOMs]) examining association OTB interval outcomes.This investigation was population-based...
Risk for violent victimization or crime perpetration after firearm-related hospitalization (FRH) must be determined to inform the need future interventions.To compare risk subsequent injury, death, among patients with an FRH, those hospitalized noninjury reasons, and general population.Retrospective cohort study.All hospitals in Washington.Patients FRH a random sample of non-injury-related 2006 2007 (index hospitalization).Primary outcomes included combined outcome firearm- violence-related...
Suicide is the second leading cause of death among US adolescents, and in-home firearm access an independent risk factor for suicide. Given recommendations to limit by those with mental health factors suicide, we hypothesized that adolescents such would be less likely report access.To estimate prevalence self-reported quantify lifetime illness suicidality (ie, suicidal ideation, planning, or attempt) living a in home, compare between without specific suicide.Cross-sectional analysis data...
Income inequality has been rising in the US and thought to be associated with violence especially homicide. About 75% of homicides involve firearms. We quantified association between county-level income all-race/ethnicity race/ethnicity-specific firearm homicide rates among individuals aged 14-39 years.We conducted a cohort study counties examine Gini Index (ranging from 0 [perfect equality] 1.0 inequality]) separately measured 1990 2000 2005-2015. Generalised linear mixed models Poisson...
<h3>Importance</h3> Firearm injuries are the second leading cause of death among US children and adolescents. Because lack resources allocated to firearm injury prevention during past 25 years, research has lagged behind other areas prevention. Identifying timely important questions regarding is a critical step for reducing pediatric mortality. <h3>Objective</h3> The Safety Among Children Teens (FACTS) Consortium, National Institute Child Health Human Development–funded group scientists...
To better understand motivations behind purchase and storage of firearms during the COVID-19 pandemic, we used Amazon Mechanical Turk to conduct an online survey individuals who did not a firearm since 1 January 2020 in response COVID-19. The was fielded between 5 May 2020. We asked about for purchase, changes practices concern themselves or others due There were 1105 respondents. Most people purchased so protect from people. Among respondents had without prior household ownership, 39.7%...
Poverty is an important predictor of child maltreatment. Social policies that strengthen the economic security low-income families, such as Earned Income Tax Credit (EITC), may reduce maltreatment by impeding pathways through which poverty leads to it. We used variations in presence and generosity supplementary EITCs offered at state level administrative data from National Child Abuse Neglect Data System (NCANDS) examine effect EITC on state-level rates 2004 2017. Two-way fixed effects...
Abstract Background Firearm violence is a public health problem that disparately impacts areas of economic and social deprivation. Despite growing literature on neighborhood characteristics injury, few studies have examined the association between disadvantage fatal nonfatal firearm assault using data injury location. We conducted an ecological Bayesian spatial analysis examining as determinant in Seattle, Washington. Methods Neighborhood was measured National Data Archive index. The index...
<b>Objective</b> To assess the effectiveness of reduced acellular pertussis (Tdap) vaccines in adolescents and adults. <b>Setting</b> Kaiser Permanente Northern California. <b>Design</b> Case-control study. <b>Participants</b> All polymerase chain reaction (PCR) confirmed cases members aged 11 years older from January 2006 to December 2011. We compared Tdap vaccination status PCR positive with two control groups: people testing negative for by closely matched general California population....
Undervaccination is an increasing trend that potentially places children and their communities at increased risk for serious infectious diseases.To examine the association between undervaccination pertussis in 3 to 36 months of age.Matched case-control study with conditional logistic regression analysis.Eight managed care organizations Vaccine Safety Datalink 2004 2010.Each laboratory-confirmed case (72 patients) was matched 4 randomly selected controls (for a total 288 controls). The...
Concussion is a known risk in youth soccer, but little about subconcussive head impacts. The authors provided prospective cohort study measuring frequency and magnitude of impacts using accelerometry middle school–age soccer tournament, association between changes (1) symptoms, (2) cognitive testing, (3) advanced neuroimaging. A total 17 completed the (41% female, mean 12.6 years). There were 73 >15 g measured (45% headers) only 2 had maximum peak linear acceleration >50 g. No reported...
IMPORTANCE The first dose of live attenuated measles-containing vaccines is associated with an increased risk febrile seizures 7 to 10 days following immunization among 12- 23-month-old children. combination measles, mumps, rubella, and varicella vaccine a 2-fold compared the separately administered rubella vaccines. It unknown whether magnitude these risks depends on age at immunization. OBJECTIVE To examine potential modifying effect fever DESIGN, SETTING, AND PARTICIPANTS Retrospective...
Prior research has illustrated the importance of some types local community crime for adolescents' outcomes. However, we have little knowledge about extent to which gun homicides within neighborhoods affect their mental health and behavioral This is important because homicide incidents may be uniquely harmful adolescents association with behavior represent an underappreciated externality U.S.'s violence epidemic. In this study, used data on geocoded location linked restricted Fragile...
Background: The incidence of firearm injury and death in the United States is increasing. Although health care–related effect estimated to be high, existing data are largely cross-sectional, do not include on preinjury postinjury care visits related costs, use hospital charges rather than actual monetary payments. Objective: To compare costs (that is, payments) utilizations within 6 months before after an incident (index) injury. Design: Before–after study. Setting: Blue Cross Shield plans...