Long-term impact of familismo and ethnic identity on latinx college student drinking and high-risk consequences.

Familismo, ethnic pride, and ethnic shame were examined as longitudinal predictors of Latinx college student alcohol use and high-risk alcohol-related consequences. Latinx students completed measures during the fall of their first (T1), second (T2), and fourth (T4) year of college. T1 familismo was positively associated with T2 ethnic pride and negatively associated with T2 ethnic shame. T2 ethnic pride was negatively associated with T4 drinking, while T2 ethnic shame was positively associated with T4 drinking. T4 drinking was positively associated with T4 consequences. Results suggest that Latinx ethnic pride and ethnic shame during the second-year of college act as mediators between first-year familismo and fourth-year drinking and consequences.

Injury and fatality risks for child pedestrians and cyclists on public roads.

BACKGROUND: Pedestrians and cyclists are often referred to as "vulnerable road users," yet most research is focused on fatal crashes. We used fatal and nonfatal crash data to examine risk factors (i.e., relationship to an intersection, urbanicity, crash circumstances, and vehicle type) for police-reported pedestrian and cyclist injuries on public roads among children aged 0-9 and aged 10-19. We also compared risk factors among these two age groups with adults aged 20-29 and aged 30-39. METHODS: Crash data were obtained for 2016-2020 from the National Highway Traffic Safety Administration's Fatality Analysis Reporting System for fatal crash injuries and Crash Report Sampling System for nonfatal crash injuries. We collected data on victim demographics, roadway, and vehicle- and driver-related factors. Descriptive analyses were conducted between and within pedestrian and cyclist victims. RESULTS: We analyzed 206,429 pedestrian injuries (36% in children aged 0-19) and 148,828 cyclist injuries (41% in children aged 0-19) from 2016 to 2020. Overall, child pedestrians had lower injury rates than adults, but children aged 10-19 had greater cycling crash rates than adults. Almost half of the pedestrian injuries in children aged 0-9 were "dart-out" injuries (43%). In the majority of the cyclist injuries, children in both age groups failed to yield to vehicles (aged 0-9 = 40% and aged 10-19 = 24%). For children and all ages included in the study, the fatality risk ratio was highest when pedestrians and cyclists were struck by larger vehicles, such as trucks and buses. Further exploration of roadway factors is presented across ages and transportation mode. CONCLUSION: Our findings on child, driver, vehicle, and roadway factors related to fatal and nonfatal pedestrian and cyclist injuries may help to tailor prevention efforts for younger and older children.

Recent Latinx immigrants to Miami/Dade County (FL): Travel patterns before, during, and one year after the COVID-19 pandemic lockdown.

INTRODUCTION: Understanding the transportation needs of immigrants is crucial for the design and promotion of safe, equitable, and sustainable living environments. This study examines the transportation patterns from a sample of Recent Latinx Immigrants (RLIs) upon arrival to Miami/Dade Co (MDC), Florida. METHODS: Collected between 2018 and 2021, data came from a longitudinal study examining drinking and driving trajectories among 540 RLIs to MDC. Retrospective pre-immigration data (T0) were obtained simultaneously with the first-year post-immigration data (T1). Follow up surveys were conducted one year later, before (T2-BC) or during a pandemic lockout (T2-DC), and two years later (T3). Descriptive and repeated measures mixed-model regression were used to examine the data. RESULTS: Driving declined from T0 to T1, although remained higher than previously reported for other locations. Not having a valid driver's license was the main reason for the decline. The initial reduction in driving was paralleled by an increase in the use of transit, riding as passengers in private vehicles, and walking. A year later (T2), as RLIs' income and access to a driver's license grew, driving rates increased (even during the pandemic lockdown), while the use of other transportation modes decreased. A year after the pandemic lockdown (T3), driving as well as the use of other transportation modes receded. Reasons for this decline are unclear. CONCLUSIONS: RLIs reported elevated driving rates upon their arrival to MDC. The COVID-19 pandemic seems to have altered the RLIs' transportation patterns, provoking an overall decline in mobility that lasted even after the pandemic lockdown ceased. PRACTICAL APPLICATIONS: Transportation planners working on developing safe and equitable transportation systems in MDC should: (1) identify and address barriers to the use of transportation modes other than driving by RLIs; and (2) understand reasons for the broad decline in transportation modes after the pandemic lockdown.

Perceived Stress and Depressive Symptoms Among Recent Latino/a Immigrants: The Moderating Effects of Emotion Regulation and Dispositional Mindfulness.

Their initial years in the U.S. can be stressful for recent Latino/a immigrants (RLIs). This study examines the association between perceived stress and depressive symptoms and the moderating effect of emotion regulation and dispositional mindfulness. Cross-sectional data from an ongoing longitudinal study of RLIs was used. Hierarchical multiple regression analyses were performed to examine simple main effects of the predictor variables on depressive symptoms. The study also tested the moderating effects of emotion regulation and dispositional mindfulness on the association between perceived stress and depressive symptoms. Greater perceived stress and cognitive reappraisal were associated with greater depressive symptoms. Lower levels of appraisal and higher levels of non-reactivity mindfulness strengthened the association between perceived stress and depressive symptoms. Findings can inform the development of culturally tailored interventions that account for distinct aspects of emotion regulation and dispositional mindfulness associated with managing stress and decreasing depressive symptoms among RLIs.

Alcohol use among adult recent Latino/a immigrants: the role of stress, forced migration, and adherence to traditional gender roles.

Background: Previous research conducted among Latino/a immigrants has shown the underlying effect that exposure to stress after immigrating to the U.S. (i.e. health access, racial/ethnic discrimination, and language barriers) has on alcohol use patterns. However, given the demographic shifts in recent immigrants, understanding the influence of stress before (i.e. poverty, healthcare, and educational opportunities) and after immigration on their alcohol use (i.e. alcohol consumption and drinking behaviors in the past 12 months) in the context of migration and traditional gender roles is warranted.Objectives: To examine the (a) cumulative effects of pre- to post-immigration stress, (b) respective moderating effects of traditional gender roles, and (c) forced migration on alcohol use for men and women.Methods: Hierarchical multiple regression and moderation analyses were conducted on a cross-sectional sample of 529 (N = 268 men, N = 261 women) adult (18-34 years) from recent Latino/a immigrants in South Florida.Results: Gender had a statistically significant difference on alcohol use, (F 527) = 18.68, p < .001, with men (p = 4.36 ± SE =.22) reporting higher alcohol use than women (p = 3.08 ± SE =.20). Post-immigration stress (ß = .12, p = .03) but not pre-migration stress had a statistically significant association with alcohol use. There is no interaction effect by traditional gender roles and forced migration on the associations between pre- to post-immigration stress and alcohol use.Conclusion: Results suggest that post-immigration stress may be a reasonable intervention target to mitigate alcohol use among recent Latino/a immigrants, particularly among men.

A characterization of pre- to post-immigration alcohol use among recent Latino immigrants to the United States before and during the COVID-19 pandemic.

BACKGROUND: Although Latino immigrants to the United States tend to display a gradual increase in alcohol use after immigration, such escalation may not generalize to all Latino/a groups. This study examines patterns of alcohol use shown by recent Latino immigrants (RLIs) to Miami/Dade County (MDC), Florida covering a period from pre-immigration to the first two years after immigration. Differences in alcohol use prior to and during the COVID-19 pandemic were also assessed. METHODS: Data came from an on-going longitudinal study of 540 young adult (50% female) RLIs. Inclusion criteria were age 18 to 34, residing in MDC and having immigrated from a Latin American country within the past year. Respondent-driven sampling was the primary recruitment strategy. RESULTS: Recent Latino immigrants reported a decline in alcohol use from before immigration (18.3 drinks per month, d/m) to the first (13.9 d/m), and second years (10.4 d/m before and 12.9 d/m during the pandemic lockdown) in MDC. The decline, which was moderated by RLIs' sex and legal residency status, was halted by the pandemic lockdown. While "to celebrate" was the most often cited reason for drinking, "to forget" was often cited during the lockdown. CONCLUSIONS: The noted decrease in alcohol use since immigration may reflect the unique array of support and resources available to RLIs in MDC. Nevertheless, some RLIs increased their alcohol use over time, particularly during the COVID-19 pandemic. This disparate impact of the pandemic on alcohol use calls attention to the need to identify the most vulnerable RLIs to MDC and develop targeted interventions for them.

Early trajectories of cigarette and ENDS use among young adult recent Latino immigrants to U.S.

Background: Recent Latino immigrants (RLIs) to the U.S. have shown high smoking rates during their first year since arrival, raising concern about future escalation of tobacco use.Objective: To examine trajectories of cigarette and Electronic nicotine delivery systems (ENDS) use among RLIs from pre-immigration (T0) through their first (T1) and second (T2) year in the U.S.Methods: Data originated from a longitudinal study of 540 (50% females) RLIs aged 18-34. Inclusion criteria was residing in Miami/Dade County (MDC), and having immigrated from a Latin American country within the past year. Trajectories were identified by using the Proc Traj procedure (SAS©, v 9.4).Results: Rates of cigarette use per month declined from 11.8 days/month in T0 to 4.9 d/m in T2. Rates for ENDS use however, increased from T0 (1.1 d/m) to T1 (1.8 d/m) and then lowered back to 0.9 d/m in T2. Four separate cigarette and e-cigarette use trajectories were identified. Only one of them showed increase in cigarette (10.6% of RLIs), and ENDS use (4.5% of RLIs). Being male, and not completing high school were significant factors in explaining smoking trajectories. Being younger than 30 years old was largely associated with ENDS use. No evidence of a substitution effect between cigarette and ENDS use was found.Discussion/Conclusions: Interventions to discourage tobacco use among Latino immigrants should begin early in the immigration process, aimed to preserve initial reductions and dissuade those at risk of increased tobacco use overtime.

The prevalence and excess mortality risk of driving with children.

INTRODUCTION: The presence of passengers can affect the driving behavior of motor-vehicle operators. Child passengers present unique motivations to drive more safely, as well as opportunities to distract drivers. Because motor-vehicle crashes are an important cause of premature childhood mortality, this study assesses whether adult drivers with child passengers are more or less likely to cause a fatal crash. METHOD: Data include fatal crashes involving one or two vehicles from 2007 to 2017 in the U.S. Fatality Analysis Reporting System. We apply methods developed by Levitt and Porter (2001) and Dunn and Tefft (2020) -the LPDT approach- to estimate the risk that adult drivers (21 years or older) with at least one child passenger (15 year or younger) cause a fatal crash relative to adults without child passengers. RESULTS: Childhood crash exposure when traveling with an adult driver is low: 0.78% of vehicle miles traveled by adults included a child passenger. Nevertheless, adult drivers with child passengers were significantly more likely to cause a fatal crash than adult drivers without child passengers. The estimated risk of causing a single-vehicle crash was 6.2 times higher among the full sample of adults, 7.2 times higher among female drivers, and 5.0 times higher among drivers 25-44 years old. CONCLUSIONS: Despite their relatively low crash exposure, child passengers are associated with much greater risk of causing a fatal crash. PRACTICAL APPLICATIONS: This study not only informs about the need to develop interventions to remind parents and adult drivers of the risks associated with driving children, but also reminds researchers about the enormous potential of the LPDT approach when applied to traffic safety issues.

Cannabis Adaptation During and After Alcohol Ignition Interlock Device Installation: A Longitudinal Study.

OBJECTIVE: A common intervention to prevent alcohol-impaired driving are alcohol ignition interlock devices (IIDs), which prevent drivers with a blood alcohol concentration greater than .025% from starting the car. These devices force drivers to adapt their drinking to accommodate the device. Prior studies indicated a transfer of risk as some drivers with an IID may increase cannabis use as they decrease alcohol use. This study examines whether this increase in cannabis use persists after IID removal when alcohol use reverts to pre-IID levels. METHOD: The data are from the Managing Heavy Drinking (MHD) study of drivers in New York State. The MHD is a comprehensive three-wave study of drivers convicted of driving under the influence from 2015 to 2020. Participants (N = 189) completed all waves, and provided oral fluid/blood and hair samples to measure cannabis and alcohol use, respectively. Mixed between-within analysis of variance was conducted to assess cannabis use at IID installation (Time 1), removal (Time 2), and at 6-month follow-up (Time 3). RESULTS: In aggregate, participants increased their cannabis use over the course of the study. Drivers who decreased their alcohol use while the IID was installed on their car significantly increased their cannabis use while the IID was in place and further increased cannabis use after the device's removal. CONCLUSIONS: IIDs are efficacious in preventing alcohol-impaired driving. However, in some cases, they may have the unintended effect of increasing other substance use. The current study outlines the need for supplemental treatment interventions while on IID to prevent a transfer of risk to other substances, or polysubstance use after the device is removed.

Examining the role of trauma in alcohol interlock performance: A structural pathway analysis.

OBJECTIVE: Self-medication using alcohol is a common coping response among individuals dealing with trauma as is driving under the influence of alcohol (DUI). A common intervention for drivers convicted of DUI, is an alcohol ignition interlock device (IID)-which requires breath samples before starting the car. If the sample is above a predetermined limit (.025), the car will not start, thus preventing impaired driving. IIDs are an effective intervention to reduce rates of drinking and driving among high risk populations; however, limited research has examined how traumatic experiences may impact performance on IIDs. METHODS: This study is an archival analysis of the Managing Heavy Drinking (MHD) study of drivers in New York state. The MHD is a comprehensive study of drivers convicted of a DUI from 2015-2020. Participants (N = 121) completed questionnaires and provided consent to retrieve information from interlock providers. Outcome variable included high BAC lockout ratios (number of high BAC lockouts [BAC>.08]/number of clean blows [BAC ≤ .025]). Other variables included demographic variables, alcohol treatment history, trauma experiences, and prior DUI history. Variables were entered into a structural equation model. RESULTS: In the final structural model, pathways that demonstrated a p-value of greater than .10 were dropped from the model. This produced acceptable overall model fit statistics (χ2 = 27.059(10), p=.003; CFI = .900; NFI = .898; RMSEA = .063). A significant pathway was found from the trauma measure to alcohol use (ß = .132), and from alcohol use to interlock performance (ß = .636). However, no significant relationship was found between trauma and interlock performance other than through alcohol use. CONCLUSIONS: The current study provides a useful framework upon which to understand the role traumatic experiences have on alcohol IID performance. Traumatic experiences are in of themselves insufficient to impact IID performance directly, but it may indirectly impact IID performance through increasing alcohol use.

Depressive symptoms among recent Latinx immigrants in South Florida: The role of premigration trauma and stress, postimmigration stress, and gender.

In the past decade, recent Latinx immigrants (RLIs) from South and Central America have arrived in the United States seeking asylum from countries affected by war, political upheaval, and high crime and poverty rates. The premigration stress and trauma they experience are further compounded by postimmigration stress due to discrimination, lack of access to health care, and financial instability. Evidence suggests RLIs who experience such stress and trauma have an increased risk of developing depressive symptoms. We examined the combined effect of premigration stress and trauma and postimmigration stress on postimmigration depressive symptoms; we also explored the moderating effect of gender. Hierarchical multiple regression and moderation analyses were conducted on a cross-sectional sample of 540 young adult RLIs (age range: 18-34 years, 50.2% men) in South Florida. Higher levels of postimmigration stress, ß = .37, p < .001, were associated with increased postimmigration depressive symptoms. No significant associations emerged between premigration stress and trauma and postimmigration depressive symptoms. Moderation analyses revealed no significant interaction effect of gender. Post hoc analyses indicated that country/region of origin moderated the relation between postimmigration stress and depressive symptoms such that the association was stronger among Venezuelan, ß = 1.51, p < .001; other South American, ß = 1.06, p < .001; and Central American/Mexican RLIs, ß = 1.38, p < .001, compared with Caribbean RLIs, ß = .45, p  = .122. These findings suggest that interventions focused on addressing postimmigration stress early in the immigration process can potentially lower subsequent depressive symptoms among RLIs.

Impact of pre-migration assets and pre-migration trauma on acculturative stress among recent Latinx immigrant young adults.

BACKGROUND: Pre-migration trauma is associated with adverse mental health outcomes among Latinx immigrants. Pre-migration assets like family cohesion and social support may promote positive mental health outcomes in this population. The current study aims to identify the cumulative and interaction effects of pre-migration trauma, social support, and family cohesion on acculturative stress among recent Latinx immigrants (RLIs). METHOD: The current study utilizes baseline data from an on-going longitudinal study following 540 RLIs during their initial 3 years in the U.S. Simple main effects of the predictor variables on acculturative stress were estimated using hierarchical multiple regression (HMR). Predictor variables were entered into the HMR model as follows: (1) demographic variables were entered in the first block, (2) family cohesion and social support in the second block and (3) pre-migration trauma in the third block. Interaction effects between family cohesion and social support on the association between pre-migration trauma and acculturative stress were examined. RESULTS: Results showed that 20.6% of the variance of acculturative stress was explained by the predictor variables entered into the HMR model. The first predictor block included demographic variables and explained 13.5% of the variability in acculturative stress, R2 = 13.5, F(6, 521) = 13.55, p < .001. The second block added family cohesion and social support to the HMR model and showed an ΔR2 of 4.5%, R2 = 18.0, F(8, 519) = 14.22, p < .001. The third block added pre- migration trauma to the HMR model and showed an ΔR2 change of 2.6%, R2 = 20.6, F(9, 518) = 14.93, p < .001. Significant interaction effects were found for family cohesion among documented RLIs. Social support was not a significant moderator. CONCLUSION: Study findings suggest pre-migration resources such as family cohesion and social support may ameliorate post-immigration acculturative stress among RLI, while pre-migration trauma, may exacerbate acculturative stress.

Pre- and post-immigration factors associated with cigarette use among young adult recent Latinx immigrants during their initial year in the U.S.

Background: Evidence indicates escalating rates of cigarette use among foreign-born Latinx as their time in the U.S increases. As such, it's important to understand shifts in pre- to post-immigration smoking patterns early in the immigration process and its associated factors.Objectives: To examine 1) cigarette use among recent Latinx immigrants (RLIs) during their initial year in the U.S.; 2) whether cigarette use after immigration is influenced by smoking patterns in immigrant's country of origin; and 3) associations between pre/post immigration sociocultural factors and changes in cigarette use after immigration.Methods: Baseline data were utilized from an on-going longitudinal study of 540 young adult (50% females) RLIs. Inclusion criteria was being between ages 18 and 34, residing in Miami-Dade County, Florida, and having immigrated from a Latin American country within the past yearResults: Approximately 31% of participants reported being smokers in their country of origin while 26% were current smokers (while residing in the U.S). Post-immigration cigarette use was substantially influenced by country of origin cigarette use (V = .68); 84% of pre-immigration smokers reported no change in smoking frequency, while 11% lowered and 6% increased their cigarette use post-immigration. Reduction in smoking after immigration was more likely among participants with higher pre-immigration social support (aOR = 1.87) and less likely among those residing in high-crime neighborhoods (aOR = .84).Conclusion: Interventions aimed to discourage cigarette use should begin early in the immigration process and account for RLIs' pre-immigration smoking patterns. Interpersonal supports and neighborhood contextual factors should be considered when developing smoking cessation programs with this population.

Prescription Drug and Cannabis Use among Recent Latinx Immigrants Pre- and Post-Immigration to the US.

Introduction: Shifts in the sociopolitical context of Latin America have led to steep increases in recent Latinx immigrants (RLI) arriving in the US within the context of forced migration. Yet, little is known about how adverse experiences of RLIs before and after immigration may impact their health including drug use. The purpose of this study was to examine prescription drug and cannabis use before and just after immigration among RLIs and how this drug use is influenced by pre-and post-immigration factors. Methods: This study utilized baseline data from a study examining pre- to post-immigration drinking and driving trajectories among RLI in the United States (US). Baseline criteria included: self-identifying as a Latinx immigrant, 18 - 34 years old, who recently immigrated from a Latin American country. Multivariate logistic regression was conducted to determine predictors of drug use both prior to and after immigrating. Results: There were 540 RLI, 50.2% male and 47.8% subjected to forced migration. Prescription and illicit drug use decreased post-immigration with sedatives being the most common. Higher levels of education was associated with increased odds of pre-immigration prescription drug use and cannabis use. Those experiencing forced migration were more likely to engage in prescription drug use before and after immigration, while no associations were found for cannabis use. Conclusion: Findings suggest a need for increased substance use and mental health services among RLIs arriving within the context of forced migration. More research is needed to understand the trajectories of drug use among RLI as their time in the US increases.

Alcohol-related deaths among young passengers: An analysis of national alcohol-related fatal crashes.

INTRODUCTION: There is consensus that riding with an impaired driver (RWI) constitutes a major threat to public health. The aim of this study was to characterize the factors contributing to the motor-vehicle deaths of 15-20 year-old (y/o) passengers that RWI with a peer. METHOD: Secondary analyses of the 2010-2018 Fatality Analysis Reporting System. 5,673 passengers aged 15-20 y/o killed while riding in passenger cars with a driver aged 21 or older, 3,542 of these drivers also aged 15-20 y/o. Analyses were conducted between October 2019 and December 2020. RESULTS: Sixty-three percent of the young passengers were killed while riding with a driver 15-20 y/o. Of these drivers, 26.8% had a blood alcohol concentration (BAC) >0.00 g/dL and 77.1% had a BAC ≥0.08 g/dL. Compared with those occurring during the day on weekdays, fatalities of young passengers who RWI with a peer driver with a BAC ≥ 0.08 g/dL often occurred on weekend nights (OR = 8.2) and weekday nights (OR = 5.2), and when the passenger and driver were both male (OR = 1.8). Race/ethnicity was not a significant contributor to RWI fatalities. CONCLUSIONS: Most 15-20 y/o RWI fatalities occurred on weekends, at night, when the driver was a young peer with a high BAC, and the passenger and driver were male. The high prevalence of fatalities in these high-risk situations suggests that young driver-passenger dynamics may contribute to alcohol-related fatalities. Practical Applications: To curb RWI fatalities among underage passengers, countermeasures should focus not only on underage drinking drivers and riders, but also on drinking drivers of all ages. Prevention should increase focus on situations in which both the young passenger and young driver are males.

Recent Latinx Immigrants to Miami-Dade County, Florida: A Characterization of Pre- and Post-Immigration Travel.

With greater understanding of preferred and frequently used modes of transportation, urban planners can design and promote efficient, equitable, and sustainable living environments. Few studies have examined the transportation needs immigrants who have recently arrived in the United States. Most of our limited understanding of this subset of the population is based on research obtained from immigrants who have resided in the United States for extended periods of time. Moreover, little is known about how post-immigration travel behaviors are affected by pre-immigration travel behaviors. This study examines how pre-immigration travel behaviors of Latinx immigrants affect their post-immigration travel behaviors within one year of their arrival to Miami-Dade County, Florida. The findings of this study align with previous research suggesting that, among this immigrant group, multiple modes of transportation are used-with variations by sex, income, and country of origin. Unlike previous studies, however, our results reveal a relatively high prevalence of driving, particularly among men, indicating the uniqueness of Latinx travel behavior in Miami-Dade County. An important and novel study finding is that transportation behaviors of immigrants soon after arrival are highly influenced by transportation behaviors in their country of origin. This knowledge can potentially be highly relevant to transportation planners in the United States, as it facilitates the adoption of early behavioral interventions to address immigrants' transportation needs.

A Latent Class Analysis of DUI Offender Motivation and Awareness as Predictors of Performance While on Alcohol Ignition Interlocks.

INTRODUCTION: Alcohol ignition interlock devices (IID) reduce rates of drinking and driving. The interlock offers an opportune time for tailoring targeted interventions to develop habits to separate drinking from driving among this high-risk population. This study identified different types of IID users upon whom targeted interventions could be developed. METHODS: Participants (N = 114) were assessed at IID installation and again six months later. Latent class analysis (LCA) was conducted using drinking environment, drinking motivation, social support, drug use, and problem drinking behaviors as indicators. Multivariate regression analyses were conducted comparing latent class assignment with impaired driving attempts. RESULTS: LCA supported a 4-class model where 14.8% of participants fell into the low use/high awareness class; 30.6% fell into the heavy use/high awareness class; 30.6% fell into the mixed use/high awareness class; and 24.0% fell into the moderate use/low awareness class. Drivers in the moderate use/low awareness condition had increased early morning BAC lockouts. CONCLUSIONS: These typologies demonstrate important differences within high risk drivers. Indeed, drivers who fell into the moderate use/low awareness class may not have considered their alcohol-related behaviors problematic. This information could lend itself to the development of targeted interventions to address subgroups of drinking drivers.

Time to licensure for driving among U.S. teens: Survival analysis of interval-censored survey data.

OBJECTIVE: Novice drivers who delay in driving licensure may miss safety benefits of Graduate Driver Licensing (GDL) programs, potentially putting themselves at higher crash-risk. Time to licensure relates their access to independent transportation to potential future economic- and educational-related opportunities. The objective of this study was to explore time to licensure associations with teens' race/ethnicity and GDL restrictions. METHODS: Secondary analysis using all seven annual assessments of the NEXT Generation Health Study, a nationally representative longitudinal study starting with 10th grade (N = 2785; 2009-2010 school year). Data were collected in U.S. public/private schools, colleges, workplaces, and other settings. The outcome variable was interval-censored time to licensure (event = obtained driving licensure). Independent variables included race/ethnicity and state-specific GDL restrictions. Covariates included family affluence, parent education, nativity, sex, and urbanicity. Proportional hazards (PH) models were conducted for interval-censored survival analysis based on stepwise backward elimination for fitting multivariate models with consideration of complex survey features. In the PH models, a hazard ratio (HR) estimates a greater (>1) or lesser (<1) likelihood of licensure at all timepoints. RESULTS: Median time to licensure after reaching legal driving age for Latinos, African Americans, and Non-Latino Whites was 3.47, 2.90, and 0.41 years, respectively. Multivariate PH models showed that Latinos were 46% less likely (HR = 0.54, 95%CI: 0.35-0.72) and African Americans were 56% less likely (HR = 0.44, 95%CI: 0.32-0.56) to have obtained licensure at any time compared to Non-Latino Whites. Only learner minimum age GDL restriction was associated with time to licensure. Living in a state with a required learner driving minimum age of ≥16 years (HR = 0.57, 95%CI: 0.16-0.98) also corresponded with 43% lower likelihood of licensure at legal eligibility compared to living in other states with a required learner driving minimum age of <16 years. CONCLUSION: Latinos and African American teens obtained their license approximately three years after eligibility on average, and much later than Non-Latino Whites. Time to licensure likelihood was associated with race/ethnicity and required minimum age of learner permit, indicating important implications for teens of different racial/ethnic groups in relation to licensure, access to independent transportation, and exposure to GDL programs.

Associations Between Graduated Driver Licensing Restrictions and Delay in Driving Licensure Among U.S. High School Students.

INTRODUCTION: Some of the most vulnerable groups of teens choose to delay driving licensure (DDL). We assessed longitudinal associations between state-level Graduated Driver Licensing (GDL) restrictions and DDL among U.S. high school students. METHODS: Data from seven waves of the NEXT Generation Health Study (starting 10th-grade (2009-2010)), were analyzed in 2020 using Poisson regression. The outcome was DDL (delay vs. no-delay). Independent variables were driving restrictions (at learner and intermediate phases of licensure), sex, race/ethnicity, family affluence, parent education, family structure, and urbanicity. RESULTS: Of 2525 eligible for licensure, 887 (38.9%), 1078 (30.4%), 560 (30.7%) reported DDL 1-2 years, >2 years, no DDL, respectively. Interactions between GDL restrictions during the learner permit period and covariates were found. In states requiring ≥30 hours of supervised practice driving, Latinos (Adjusted relative risk ratio [aRRR]=1.55, p<.001) and Blacks (aRRR=1.38, p<.01) were more likely to DDL than Whites. In states where permit holding periods were <6 months, participants with low (aRRR=1.61, p<.001) and moderate (aRRR=1.45, p<.001) vs. high affluence were more likely to DDL. Participants in single-parent households vs. both-biological parent households were also more likely to DDL (aRRR=1.37, p<.05). In states where permit holding periods were ≥6 months, participants with low (aRRR=1.33, p<.05) vs. high affluence were more likely to DDL. In states that allowed ≥3 passengers or no passenger restriction, participants living in non-urban vs. urban (aRRR=1.52, p<.05) areas were more likely to DDL, and in states that allowed only 1 or no passenger, participants living in non-urban vs. urban areas (aRRR=0.67, p<.001) were less likely to DDL. CONCLUSIONS: Our findings heighten concerns about increased crash risk among older teens who age out of state GDL policies thereby circumventing driver safety related restrictions. Significant disparities in DDL exist among more vulnerable teens in states with stricter GDL driving restrictions.