Influence of pre-processing criteria on analysis of accelerometry-based physical activity.

Background: Accelerometers are widely adopted for physical activity (PA) measurement. Accelerometry data require pre-processing before entering formal statistical analyses. Many pre-processing criteria may influence PA outcomes and the processed sample, impacting results in subsequent statistical analyses.

Health-related social control among U.S. adults ages 30-80: Associations with alcohol use over four years.

Health-related social control (HRSC) includes efforts to regulate or influence others' health behaviors and is an important way interpersonal relationships can affect individual-level health. This study used egocentric network data to describe the size and composition of HRSC networks, identify trajectories of HRSC receipt, and examine how HRSC is related to binge drinking and alcohol-related problems. Data come from a U.

Longitudinal associations among experiences of sexual assault, posttraumatic stress disorder symptoms, and heavy drinking in young adults.

Prior research with young adults has demonstrated clear associations between experiences of sexual assault, symptoms of posttraumatic stress disorder (PTSD), and alcohol use, but most studies have been cross-sectional or have not considered multiple theoretical pathways to understand these associations. Using six waves of data from a longitudinal cohort sample of 1,719 young adults, we examined associations among experiences of past-year sexual assault (i.e.

Directional associations between posttraumatic stress disorder symptoms and cannabis use in young adults: Uncovering variation by sex, race, and ethnicity.

Objective: Prevalence rates of cannabis use and PTSD vary, with men reporting greater cannabis use than females, females reporting higher rates of PTSD than males, and race and ethnic minority persons reporting higher rates of both cannabis and PTSD compared to non-Hispanic White individuals. This study extends our understanding of directional associations between cannabis use and PTSD from early to late young adulthood (18-26 years old) using two theoretical models: symptom-driven pathway and substance-induced pathway.

Method: Participants provided yearly data for 14 years, and the present study utilized data from Waves 9 through 14.

Sober Curiosity and Participation in Temporary Alcohol Abstinence Challenges in a Cohort of U.S. Emerging Adults.

Objective: Thus far, behavioral health research in the United States has not explored the prevalence or correlates of sober curiosity (SC; exploratory or experimental abstinence or moderation) or temporary alcohol abstinence challenges (TAACs; e.g., "Dry January"), despite significant attention in media and popular discourse.

Parallel trajectories of vaping and smoking cannabis and their associations with mental and physical well-being among young adults.

Background: Vaping and smoking are common modes of using cannabis (THC) among young adults, but little is known about how patterns of cannabis vaping and smoking unfold over time or how using one or both types of products may differently affect mental and physical well-being. This study examines parallel processes of cannabis vaping and smoking over 5 years and mental and physical outcomes in a sample of young adults.

Methods: Annual surveys were conducted between 2016 and 2022 with a mostly California-based cohort of 2428 young adults.

How do college students use their free time? A latent profile analysis of leisure activities and substance use.

College is a critical period of transition to independence and the substantial amount of time that students have to participate in leisure activities may be conducive to substance use. However, little is known about the associations between leisure activities and substance use over time, or whether these associations differ by residential status (i.e.

Alcohol and cannabis co-use in a national sample of U.S. adults ages 30-80.

Introduction: Growing cannabis legalization has coincided with an increased focus on use of both alcohol and cannabis (AC co-use) among younger people; however, little is known about AC co-use among adults over age 30. This study examines the prevalence of different types of AC co-use among adults, as well as compares AC co-users and alcohol-only users on individual, social network, and neighborhood characteristics.

Methods: Data come from three annual surveys of a nationally representative sample of 1,770 U.

Directional associations between cannabis use and depression from late adolescence to young adulthood: the role of adverse childhood experiences.

Background And Aims: Although the co-occurrence of cannabis and depression is well established, less is known about the temporal sequence of cannabis use and depression. The present study had three main aims: to test a symptom-driven pathway in which depression may drive increases in cannabis use, to test a substance-induced pathway in which cannabis use may drive increases in depression and to assess a shared vulnerability model assessing associations between individuals who have (and have not) experienced adverse childhood experiences (ACEs).

Design: Data are from an ongoing, longitudinal, cohort study (n = 2234).

Directional associations between cannabis use and anxiety symptoms from late adolescence through young adulthood.

Background: Two major theories aid in explaining the association between anxiety and cannabis use: a symptom-driven pathway (heightened anxiety precedes greater cannabis use) and a substance-induced pathway (greater use precedes heightened anxiety). Although the co-occurrence of cannabis use and anxiety symptomology is well-established, less is known about the temporal sequence of cannabis use and anxiety symptomology over the course of young adult development METHODS: Data are from an ongoing, longitudinal, cohort study. All prospective analyses used data from wave 8, when participants were between the ages of 17 and 20, through wave 13, when participants are between ages 21 and 24 (N = 2995).

Linking churches and parks to promote physical activity among Latinos: Rationale and design of the Parishes & Parks cluster randomized trial.

Background: Regular physical activity (PA) contributes to positive health outcomes, but a minority of US adults meet minimum guidelines for moderate-to-vigorous PA (MVPA) and muscle-strengthening, and Latinos are less likely than whites to meet these guidelines. Public parks can be leveraged for community PA but tend to be underutilized, while churches have reach within Latino communities and can influence parishioners' health.

Methods: We are conducting a cluster randomized controlled trial to examine the impact of a multilevel, faith-based intervention linking Catholic parishes (n = 14) to their local parks on adult Latino parishioners' (n = 1204) MVPA and health-related outcomes.

Predictors of Long-Term Opioid Use After Hospitalization for Traumatic Injury in a Racially and Ethnically Diverse Population: A 12-Month Prospective Observational Study.

Background: Long-term prescription opioid use is a significant risk factor for opioid morbidity and mortality, and severe traumatic injury is an important initiation point for prescription opioid use. This study examines predictors of long-term prescription opioid use among a racially and ethnically diverse population of patients hospitalized for traumatic injury.

Methods: Study participants (N= 650) from two urban Level I trauma centers were enrolled.

A latent class approach to understanding longitudinal sleep health and the association with alcohol and cannabis use during late adolescence and emerging adulthood.

Objective: Sleep is a multi-dimensional health behavior associated with elevated risk of substance use. This is the first study to utilize a latent class approach to characterize sleep health across multiple dimensions and across time from late adolescence to emerging adulthood, and to examine associations with alcohol and cannabis use trajectories.

Methods: The sample included 2995 emerging adults (mean ages = 18 to 24 years across six waves of data collection; 54% female) who provided data on sleep dimensions (quality, duration, and social jetlag) and frequency and consequences of alcohol and cannabis use.

Young Adults' Perceived Impact of COVID-19 Pandemic on Sleep and Other Functioning: Does It Differ for Sexual/Gender and Racial/Ethnic Minorities?

Objectives: Since the beginning of the COVID-19 pandemic, there has been concern that the pandemic and associated mitigation efforts would have a particularly adverse effect on communities that are marginalized. This study examined disparities in the perceived impacts of the pandemic on sleep, mental and physical health, social functioning, and substance use among young adults based on sexual/gender minority (SGM) status and race/ethnicity.

Method: Participants were 2,411 young adults (mean age = 23.

Church Contextual Factors Associated With Latinx Physical Activity and Park Use.

Churches can be important settings for promoting physical activity (PA) among Latinx populations. Little is known about what factors across the church context-social, organizational, and physical (outdoor spaces)-are associated with Latinx PA to inform faith-based PA interventions. This study investigated associations of church contextual factors with Latinx PA.

Neighborhood social environment change in late adolescence predicts substance use in emerging adulthood.

This study examines associations of changes in perceived and objective (census-based) neighborhood social environment variables during adolescence with alcohol and marijuana outcomes in emerging adulthood using two waves of data (2013-14 and 2019-20) from a cohort in Southern California (n = 1249). Increasing perceived disorganization predicted greater alcohol consequences and socialization with peers using marijuana. Decreasing objective neighborhood SES predicted fewer alcohol consequences and greater socialization with peers drinking alcohol.

Disparities in functioning from alcohol and cannabis use among a racially/ethnically diverse sample of emerging adults.

Background: Trajectory studies have consistently shown that alcohol and cannabis (AC) use during emerging adulthood (EA) affect functioning; however, few studies examine whether racial/ethnic disparities may occur at similar levels of use.

Methods: We conducted web-based surveys across five waves from mean age 18.3 through 22.

Alcohol and Cannabis Use Trajectories and Outcomes in a Sample of Hispanic, White, and Asian Sexual and Gender Minority Emerging Adults.

Substance use disproportionately affects health and psychosocial outcomes for some racial/ethnic groups, but few longitudinal studies examine the extent to which sexual and gender minority (SGM) emerging adults of different racial/ethnic groups may experience disparities in outcomes at similar levels of alcohol or cannabis use. This study used five waves of annual survey data (spanning 2015 (average age 18) to 2020 (average age 23)) from an ongoing longitudinal cohort study of emerging adults. In the subset of 359 SGM emerging adults, separate sequelae of change models assessed differences in trajectories of alcohol or cannabis use (past 30-day frequency) and multiple health and psychosocial outcomes across Hispanic, Asian, and White individuals.

Alcohol use and cannabis use trajectories and sexual/gender minority disparities in young adulthood.

Objective: Sexual and gender minority (SGM) young people may use alcohol or cannabis (A/C) at higher rates that non-SGM peers, but little is known about whether SGM young adults experience poorer health, psychosocial, and other outcomes at similar levels of A/C use.

Method: We used longitudinal survey data from a community cohort recruited from California middle schools in 2008 (average age 11.5) and followed across 12 waves through 2020.

Loneliness and multiple health domains: associations among emerging adults.

Emerging adults (18-25 years), particularly racially/ethnically diverse and sexual and gender minority populations, may experience loneliness following major life transitions. How loneliness relates to health and health disparities during this developmental period is not well understood. We examine associations of loneliness with physical (self-rated health), behavioral (alcohol/marijuana consequences; nicotine dependence), and health behavior outcomes (weekday and weekend sleep; trouble sleeping), and investigate moderating effects by sex, race/ethnicity, and sexual/gender minority (SGM) status.

Patterns and correlates of cannabidiol product and marijuana co-use in a sample of U.S. young adults.

Objective: Cannabis-derived products containing cannabidiol with no or minimal levels of delta 9-tetrahydrocannabinol (CBD products) are widely available in the United States and use of these products is common among young adults and those who use marijuana. The purpose of this study was to examine patterns and correlates of CBD product use and co-use with marijuana in a sample of young adults.

Method: The study used cross-sectional survey data collected in 2019-2020 from a cohort of young adults (n = 2534; mean age 23) based primarily in California.

Mediators and moderators of ART adherence effects of supporting treatment adherence readiness through training (START): evidence that START helps vulnerable clients achieve better adherence.

Supporting Treatment Adherence Readiness through Training (START) is an HIV antiretroviral adherence intervention, based on the Information Motivation and Behavioral skills (IMB) model, that significantly improved adherence in our randomized controlled trial. To understand how and for whom START had its effects on adherence, we examined mediators and moderators. Ninety-nine HIV-patients (53 control, 46 intervention) who enrolled in the trial and provided month 6 electronic monitored adherence data.

Poly-victimization and opioid use during late adolescence and young adulthood: Health behavior disparities and protective factors.

Objective: Recent work has attempted to uncover heterogeneity in experiences of victimization. However, few studies have included important trauma-related characteristics such as known perpetrator, fear of life or injury, and negative reactions to disclosure. Little focus on potentially important subgroup differences including sexual/gender identity, race/ethnicity, and socioeconomic status as well as protective factors have been assessed.