Shamsi Soltani is doctoral student in the Department of Epidemiology and Population Health and a trainee with the Center for Population Health Sciences, both in the Stanford School of Medicine. She is also a fellow in the Training in Advanced Data Analytics for Behavioral and Social Sciences (TADA-BSSR) program, supervised by Drs. Abby King and Lorene Nelson. Her dissertation work revolves around suicidology in LGBTQ+ populations.
Education & Certifications
MPH, Tulane University, Epidemiology
BS, UCLA, Neuroscience with French minor
Service, Volunteer and Community Work
Home Program Department Representative, Stanford Biosciences Student Association, Stanford School of Medicine (8/2022 - 7/2023)
Senior Epidemiologist, San Francisco Department of Public Health (2015 - 2021)
Main areas of focus were behavioral health, COVID-19 emergency response, transportation injury prevention and equity
San Francisco, CA
Fellow, Data Science for Social Good, University of Washington e-Science Institute (June 2022 - August 2022)
Bringing Micro to the Macro: How Citizen Science Data Enrich Geospatial Visualizations to Advance Health Equity.
Journal of maps
2023; 19 (1)
Social and spatial contexts affect health, and understanding nuances of context is key to informing successful interventions for health equity. Layering mixed methods and mixed scale data sources to visualize patterns of health outcomes facilitates analysis of both broad trends and person-level experiences across time and space. We used micro-scale citizen scientist-collected data from four Bay Area communities along with aggregate epidemiologic and population-level data sets to illustrate barriers to, and facilitators of, physical activity in low-income aging adults. These data integrations highlight the synergistic value added by combining data sources, and what might be missed by relying on either a micro- or macro-level data source alone. Mixed methods and granularity data integration can generate a deeper understanding of environmental context, which in turn can inform more relevant and attainable community, advocacy, and policy improvements.
View details for DOI 10.1080/17445647.2023.2216217
View details for PubMedID 37448978
View details for PubMedCentralID PMC10338004
What is counted counts: An innovative linkage of police, hospital, and spatial data for transportation injury prevention.
Journal of safety research
2022; 83: 35-44
Growing research indicates transportation injury surveillance using police collision reporting alone underrepresents injury to vulnerable groups, including pedestrians, cyclists, and people of color. This reflects differing reporting patterns and non-clinicians' challenge in accurately evaluating injury severity. To our knowledge, San Francisco is the first U.S. city to link and map hospital and police injury data. Analysis of linked data injury patterns informs interventions supporting traffic fatality and injury prevention goals.Injury and fatality records 2013-2015 were collected from San Francisco Police, Emergency Medical Services (EMS), Medical Examiner, and Zuckerberg San Francisco General Hospital (ZSFG). Probabilistic linkage was conducted using LinkSolv9.0 on match variables collision/admission time, name, birthdate, sex, travel mode, and geographic collision location.From 2013-2015, this study identified 17,000+ transportation-related injuries on public roadways in San Francisco. Twenty-six percent (n = 4,415) appeared in both police and ZSFG sources. Linked injury records represent 39% of police records (N = 11,403) and 43% of hospital records (N = 10,223). Among hospital records, 34% of cyclist, 38% of motor vehicle occupant, 61% of pedestrian, and 54% of motorcyclist records linked with a police record. Linkage rate varied by travel mode even after controlling for injury severity. Transportation-injured ZSFG-treated patients lacking police reports were more often cyclists, male, Hispanic or Black, and less often occupants of motor vehicles compared to those with injuries captured only in police reports.Incorporating hospital and EMS spatial data into injury surveillance systems historically reliant on police reports offers trifold benefits. First, linkage captures injuries absent in police data, adding data on populations empirically vulnerable to injury. Second, it improves injury severity assessment. Finally, linked data better informs and targets interventions serving injury-burdened populations and road users, advancing transportation injury prevention.Linkage closes data gaps, improving ability to quantify injury and develop evidence-based interventions for vulnerable groups.
View details for DOI 10.1016/j.jsr.2022.08.002
View details for PubMedID 36481027
Roadway features associated with elderly drivers in motor vehicle crashes
LIPPINCOTT WILLIAMS & WILKINS. 2021: 313-318
As the number of older US drivers has increased over the past decades, so has the number of injuries, hospitalizations, and deaths from motor vehicle crashes (MVCs) involving elderly drivers. We seek to identify personal, environmental, and roadway features associated with increased crashes involving elderly drivers. We hypothesize that elderly drivers are more likely to be involved in MVCs at intersections with more complex signage and traffic flow.This is a retrospective observational study using 2015 to 2019 police traffic crash reports and a Department of Public Health database of built-environment variables from a single urban center. Demographics and environmental/road features were compared for vehicle-only MVCs involving elderly (≥65 years) and younger drivers. χ2 and nonparametric tests were used to analyze 36,168 drivers involved in MVCs.There were 2,575 (7.1%) elderly drivers involved in MVCs during the study period. Left turns and all-way stop signs were associated with increased crash risk among elderly drivers compared with younger drivers. Elderly-involved MVCs were less likely to occur at intersections with left-turn restrictions, traffic lights, only one-way streets, and bike lanes compared with MVCs with younger drivers. Elderly drivers were more likely to be involved in MVCs on weekdays, less often intoxicated at the time of the crash, and less frequently involved in fatal MVCs compared with younger drivers. However, elderly drivers were more frequently the at-fault party, especially after the age of 75 years.Updates to roadway features have potential to decrease injury and death from MVCs involving elderly adults. Left turn restrictions or other innovative safety treatments at all-way stops or where left turns are permitted may mitigate road crashes involving older adults. Education may increase awareness of higher-risk driving tasks such as turning left, and driving alternatives including public transportation/paratransit may offer alternate means to maintain activities of daily living.Prognostic/Epidemiological, level IV.
View details for DOI 10.1097/TA.0000000000003034
View details for Web of Science ID 000618329200019
View details for PubMedID 33264265