Research Papers

Applying Individual- and Residence-Based Equity Measures to Characterize Disparities in Crash Outcomes

Journal of Safety Research
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Metzger KB, Smith R, Freed SA, Sartin E, Pfeiffer MR, O'Malley L, Curry AE

This study sought to provide a deeper understanding of inequalities in traffic safety. Among New Jersey drivers involved in crashes, people who live in lower opportunity neighborhoods and people of minoritized race and ethnicity groups were more likely to be involved in injury crashes and all crashes. These findings emphasize the need to consider a person’s lived experience when assessing their crash risk and a path to reducing disparities in traffic safety. 

Medication Changes Among Older Drivers Involved in Motor Vehicle Crashes

JAMA Network Open
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Zullo AR, Reister MR, D'Amico AM, Bhuma MR, Khan MA, Curry AE, Pfeiffer MR, Margolis SA, Ott BR, Bayer T, Joyce NR

Although older adults may use potentially driver-impairing (PDI) medications that can produce psychomotor impairment, little is known about changes to PDI medication use among older adults from the time before to the time after a motor vehicle crash (MVC). Study findings  suggest that most older drivers involved in MVCs did not use fewer PDI medications after crashes than before. Qualitative research of perceived risks versus benefits of PDI medications is necessary to understand why MVCs do not appear to motivate clinicians to deprescribe PDI medications. 

Implications of Using Administrative Healthcare Data to Identify Risk of Motor Vehicle Crash-Related Injury: The Importance of Distinguishing Crash From Crash-Related Injury

Injury Epidemiology
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Joyce NR, Lombardi LR, Pfeiffer MR, Curry AE, Margolis SA, Ott BR, Zullo AR

The medical conditions and medications that make someone more likely to be involved in a crash do not necessarily make someone more likely to be injured in a crash. Using linked NJ-SHO data and Medicare claims data of older drivers, researchers found differences between crash-involved drivers with and without an injury. Researchers should consider linking multiple sources of crash information and make a clear distinction between predicting crash involvement and being injured in a crash.

Congruency of Crash- and Hospital-Reported Injuries Among Child Passengers

American Journal of Preventive Medicine
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Sartin EB, Pfeiffer MR, Hartka T, Zonfrillo MR, Vaca FE, Metzger KB, Goodman AM, Curry AE, Myers RK

Understanding how many children are injured in crashes, as well as the types of injuries they experience, is important to advance child passenger safety. Linking New Jersey crash reports and hospital data revealed that crash reports often report inaccurate injury locations and tend to overstate the severity of injuries experienced. Very few children experienced any injury in a crash, and injuries were rare among children in harnessed child restraint systems. 

Non-Benzodiazepine Hypnotics and Police-Reported Motor Vehicle Crash Risk Among Older Adults: A Sequential Target Trial Emulation

American Journal of Epidemiology
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Zullo AR, Khan MA, Pfeiffer MR, Margolis SA, Ott BR, Curry AE, Bayer TA, Riester MR, Joyce NR

Z-drugs like zolpidem are taken at night to facilitate sleep but may cause sedation that affects driving the following morning. NJ-SHO researchers and Brown University collaborators used linked Medicare claims data and crash and licensing records to see if older drivers taking Z-drugs for 12 weeks were more likely to crash than those not taking Z-drugs. They did not find elevated risk of overall crashes, at-fault crashes, or crashes that occurred in the morning associated with a Z-drug prescription. 

Driver’s Licensure and Driving Outcomes Among Youths with Mood Disorders

JAMA Network Open
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Gaw CE, Metzger KB, Pfeiffer MR, Yerys BE, Boyd RC, Corwin DJ, Curry AE

Young adults with mood disorders were 30% less likely to acquire a driver’s license compared to their peers without mood disorders. Young adults with mood disorders had slightly higher overall crash rates at 12- and 48-months post-licensure and had double the rate of license suspensions compared to their peers without mood disorders. Research suggests the need to develop evidence-based training and education for adolescents with mood disorders who want to drive. 

Changes in the Burden of Medications That May Impair Driving Among Older Adults Before and After a Motor Vehicle Crash

Journal of the American Geriatrics Society
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Riester MR, D’Amico AM, Khan MA, Joyce NR, Pfeiffer MR, Margolis SA, Ott BR, Curry AE, Bayer TA, Zullo AR

Some medications, such as antihistamines and antidepressants, can impact a person’s driving and are considered potentially driver-impairing (PDI). Over half of older Medicare beneficiaries involved in crashes in New Jersey were exposed to two or more potentially driver-impairing (PDI) medications before and after a crash. Some drivers started taking more PDI medications after a crash, suggesting the need for more attention to the effects on driving for older people involved in crashes.

Variation In Drivers' Seat Belt Use By Indicators of Community-Level Vulnerability

Journal of Safety Research
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Sartin EB, Lombardi LR, Metzger KB, Myers RK, Pfeiffer MR, Curry AE

Examining crash reports with linked community-level indicators may optimize efforts aimed at improving traffic safety behaviors, like seat belt use. This study found that not wearing a seat belt is 121% more prevalent in communities with the largest percentage of the population living with three or more indicators of vulnerability than those in the least vulnerable communities.

Distance From Home to Motor Vehicle Crash Location: Implications for License Restrictions Among Medically-At-Risk Older Drivers

Journal of Aging & Social Policy
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Joyce NR, Khan MA, Zullo AR, Pfeiffer MR, Metzger KB, Margolis SA, Ott BR, Curry AE

In 30 states, licensing agencies can restrict the distance from home that "medically-at-risk" drivers are permitted to drive. This study found that a majority of crashes occur within a few miles from home with little variation among driver demographics or medical conditions. Therefore, distance restrictions may not reduce crash rates among older adults. Future research is needed to understand the extent to which older adults drive and to identify other factors that influence crash risk.