Examining the role of alcohol and cannabis use patterns in bystander opportunity and behavior for sexual and relationship aggression.

OBJECTIVE: This study aimed to investigate the association between alcohol and cannabis use patterns and bystander intervention for sexual and relationship violence risk among college students who have used cannabis in the past year. The study tested two hypotheses: (1) reports of bystander opportunities will differ based on participants' alcohol and cannabis use patterns, and (2) among those who report bystander opportunities, reports of bystander behaviors will differ based on their alcohol and cannabis use patterns. METHOD: Participants were 870 students recruited from two large, minority-serving universities in the United States who reported past year cannabis use. Participants reported about their typical alcohol and cannabis use patterns and bystander opportunities and behaviors. Students were grouped for analysis based on their reported average substance use into four groups: alcohol and cannabis use on the same day, alcohol use only, cannabis use only, or no use. RESULTS: Students who reported alcohol and cannabis use on the same day, compared with those who reported alcohol use only, reported more bystander opportunities and behaviors in situations at risk for sexual and relationship violence. Compared with alcohol use only, students who reported only using cannabis or no use reported fewer bystander opportunities and behavior related to keeping others safe in party settings. CONCLUSIONS: Alcohol and cannabis use patterns are associated with bystander intervention, emphasizing the need to include knowledge about cannabis and co-use in bystander programming that aims to reduce sexual and relationship violence.

The association between alcohol use and sexual assault victimization among college students differs by gender identity and race.

PURPOSE: Alcohol use and sexual assault (SA) are common on college campuses. The purpose of this study is to examine if the association between alcohol use and SA differs by gender identity, sexual orientation, race, or ethnicity. METHODS: A total of 3,243 college students aged 18-25 at two large, minority-serving, public universities in the southwest and southeast United States completed an online survey about alcohol and sexual behaviors. Two negative binomial regressions were conducted to examine main effects and interaction effects. RESULTS: Almost half of the sample reported a SA victimization history. The main effects negative binomial regression indicated that more drinks per week, older age, identifying as a cisgender woman (vs. cisgender man), identifying as a gender minority (vs. cisgender man), and identifying as a sexual minority (vs. heterosexual) were associated with more severe SA victimization. Participants who identified as Latine (vs. non-Latine White) reported less severe SA. The negative binomial regression assessing interactions indicated that the association between alcohol use and SA severity was stronger among cisgender women and gender minority identities than cisgender men, and Black identities than non-Latine White identities. CONCLUSION: Findings suggests that alcohol use is an important factor for SA severity among all students, but that the association is stronger among some with marginalized identities. Given that perpetrators target people who hold some marginalized identities, prevention programming could address cisnormative, heteronormative, and White normative ideas about alcohol and sex to attain social justice and health equity.

Using the Personalized Advantage Index to determine which veterans may benefit from more vs. less comprehensive intensive PTSD treatment programs.

Background: Intensive PTSD treatment programs (ITPs) are highly effective but tend to differ greatly in length and the number of adjunctive services that are provided in conjunction with evidence-based PTSD treatments. Individuals' treatment response to more or less comprehensive ITPs is poorly understood.Objective: To apply a machine learning-based decision-making model (the Personalized Advantage Index (PAI)), using clinical and demographic factors to predict response to more or less comprehensive ITPs.Methods: The PAI was developed and tested on a sample of 747 veterans with PTSD who completed a 3-week (more comprehensive; n = 360) or 2-week (less comprehensive; n = 387) ITP.Results: Approximately 12.32% of the sample had a PAI value that suggests that individuals would have experienced greater PTSD symptom change (5 points) on the PTSD Checklist for DSM-5 in either a more- or less comprehensive ITP. For individuals with the highest 25% of PAI values, effect sizes for the amount of PTSD symptom change between those in their optimal vs. non-optimal programs was d = 0.35.Conclusions: Although a minority was predicted to have benefited more from a program, there generally was not a substantial difference in predicted outcomes. Less comprehensive and thus more financially sustainable ITPs appear to work well for most individuals with PTSD.

A Personalized Advantage Index (PAI) was developed for a 3-week (more comprehensive) and a 2-week (less comprehensive) intensive PTSD treatment program to predict treatment responses.Using the PAI, approximately 12% of the sample was predicted to have experienced meaningfully greater in another program than the one in which they participated.Findings suggest a less comprehensive and more financially sustainable 2-week intensive PTSD treatment program would work well for most veterans in the present study.

Mental Health Clinician Practices and Perspectives on Treating Adults with Co-Occurring Posttraumatic Stress and Substance Use Disorders.

OBJECTIVE: Posttraumatic stress disorder (PTSD) and substance use disorders (SUD) commonly co-occur and represent a complex, challenging clinical comorbidity. Meta-analytic studies and systematic reviews suggest that trauma-focused treatments are more efficacious than non-trauma focused interventions for co-occurring PTSD/SUD. However, relatively little is known about mental health clinicians' practices or preferences for treating co-occurring PTSD/SUD. The present study aimed to describe the current clinical practices of mental health clinicians who treat PTSD and/or SUD-related conditions and to assess interest in novel integrative treatments for PTSD/SUD. METHODS: Licensed mental health clinicians (N = 76; Mage = 39.59, SD = 8.14) who treat PTSD and/or SUD completed an anonymous online survey from April 2021 to July 2021. RESULTS: The majority (61.8%) of clinicians reported using integrative treatments for PTSD/SUD. The most commonly used trauma-focused treatments were 1) Cognitive Processing Therapy (CPT: 71.1%) and 2) Prolonged Exposure Therapy (PE: 68.4%) for PTSD. Approximately half (51.3%) of clinicians endorsed using Relapse Prevention (RP) for SUD. The vast majority (97.4%) of clinicians were somewhat or very interested in a new integrative CPT-RP intervention, and 94.7% of clinicians believed patients would be interested in a CPT-RP intervention. In the absence of an available evidence-based integrative treatment using CPT, 84.0% of clinicians reported modifying extant treatment protocols on their own to address PTSD and SUD concurrently. CONCLUSIONS: The findings demonstrate mental health clinician support of integrative treatments for PTSD/SUD. The most commonly used trauma-focused intervention was CPT and clinicians expressed strong interest in an integrative intervention that combines CPT and RP. Implications for future treatment development are discussed.

Social support and treatment utilization for posttraumatic stress disorder: Examining reciprocal relations among active duty service members.

Evidence-based treatments for posttraumatic stress disorder (PTSD) are underutilized by active duty service members in the United States. Social support may help service members overcome avoidance and facilitate treatment utilization. In turn, treatment utilization may improve social support. To evaluate these possibilities, the aim of the current study was to examine potential reciprocal associations between social support and treatment utilization among service members. Secondary analyses were conducted on a randomized controlled trial of 161 U.S. military service members with PTSD. Participants completed assessments of perceived social support and attendance at individual therapy sessions at baseline and 3- and 6-month follow-ups. To determine reciprocal relations between social support and treatment utilization, a Bayesian approach was used to estimate a random-intercept cross-lagged panel model with a two-part variable for treatment utilization (i.e., any therapy, and if so, dose). There were no between-person associations between average social support and treatment utilization. One prospective cross-lagged within-person association emerged as significant: social support at 3 months was negatively associated with any therapy use at 6 months; the model explained 26.1% of the variance in this observed variable. The findings revealed that low social support promoted subsequent treatment utilization, but such treatment did not lead to changes in social support. This suggests service members with PTSD may have been motivated to attend individual therapy in pursuit of social connection and support. Future research is needed to determine if reciprocal associations between various forms of social support and therapy utilization differ by treatment modality.

Prospective Predictors of Work Limitations in Young Adult Lesbian and Bisexual Women: An Examination of Minority Stress, Trauma Exposure, and Mental Health.

Trauma exposure and mental health problems adversely affect work functioning. Sexual minority women are at increased risk for trauma exposure, depression, and PTSD. Sexual minority women also experience unique stressors related to their sexual orientation, which can directly impact work functioning. However, little research to date has examined the impact of trauma exposure and mental health problems among sexual minority women on their occupational outcomes. The goal of the current study was to examine whether trauma exposure, mental health problems, and minority stressors were associated with occupational functioning one year later in a large sample of young adult lesbian and bisexual women. The study utilized a subset of data (N = 304) from a larger longitudinal study on health risk behaviors among young adult lesbian and bisexual women. Results indicated that trauma exposure, posttraumatic stress, depression, and perceived heterosexism were each associated with subsequent work limitations, but after accounting for shared variance between predictors, only perceived heterosexism and depression were uniquely associated with subsequent work functioning. These findings highlight the roles of mental health and sexual orientation-related stress in the challenges that lesbian and bisexual women experience at work and point to a need for additional research to better understand risk and protective factors related to negative employment outcomes among lesbian and bisexual women.

Evaluating changes in negative posttrauma cognition as a mechanism of PTSD severity changes in two separate intensive treatment programs for veterans.

BACKGROUND: A wealth of evidence has illustrated that reductions in negative posttrauma cognitions (NPCs) predict improvement in posttraumatic stress disorder (PTSD) symptoms during treatment. Yet, the specific temporal arrangement of changes in these constructs is less well understood. This study examined the temporal association between NPC changes and PTSD symptom changes in two distinct intensive PTSD treatment samples. METHODS: Data from 502 veterans who completed a 3-week CPT-based intensive PTSD treatment program was used to test the extent to which lagged NPC measurement predicted the next occurring PTSD severity measurement using linear mixed effects regression models. PTSD severity was assessed every other day during treatment. NPCs were assessed at three treatment timepoints. A second sample of 229 veterans who completed a 2-week CPT-based intensive PTSD treatment program was used to replicate these findings. RESULTS: Across both intensive PTSD treatment programs, NPCs generally increased from intake the end of the first treatment week, which was followed by gradual decreases in NPCs throughout the rest of both programs. Change in NPCs during both the 3-week (b = .21, p < .001, R2 = .38) and the 2-week programs (b = 0.20, p < .001, R2 = .24) were significant predictors of change in PTSD symptom severity. However, the reverse was true as well, with change in PTSD severity predicting latter change in NPCs during both the 3-week (b = 1.51, p < .001, R2 = .37) and 2-week (b = 1.37, p < .001, R2 = .33) programs, further raising questions about temporality of the association between NPCs and PTSD symptom severity during treatment. CONCLUSIONS: The present study demonstrated that changes in NPCs may not temporally precede changes in PTSD symptom severity in PTSD treatment samples. Instead, we observed earlier PTSD symptom changes and a bidirectional association between the two constructs across both samples. Clinically, the study supports the continued focus on NPCs as an important treatment target as they are an important indicator of successful PTSD treatment, even if they may not be a direct mechanism of treatment-based changes in PTSD severity. Future research should attempt to identify alternative mechanisms of change in CPT.

Cognitive Processing Therapy or Relapse Prevention for comorbid Posttraumatic Stress Disorder and Alcohol Use Disorder: A randomized clinical trial.

OBJECTIVE: To compare a Posttraumatic Stress Disorder (PTSD) treatment (Cognitive Processing Therapy; CPT), an Alcohol Use Disorder (AUD) treatment (Relapse Prevention; RP), and assessment-only (AO) for those meeting diagnostic criteria for both PTSD and AUD. METHOD: Participants with current PTSD/AUD (N = 101; mean age = 42.10; 56% female) were initially randomized to CPT, RP, or AO and assessed post-treatment or 6-weeks post-randomization (AO). AO participants were then re-randomized to CPT or RP. Follow-ups were at immediate post-treatment, 3-, and 12-months. Mixed effects intent-to-treat models compared conditions on changes in PTSD symptom severity, drinking days, and heavy drinking days. RESULTS: At post-treatment, participants assigned to CPT showed significantly greater improvement than those in AO on PTSD symptom severity (b = -9.72, 95% CI [-16.20, -3.23], d = 1.22); the RP and AO groups did not differ significantly on PTSD. Both active treatment conditions significantly decreased heavy drinking days relative to AO (CPT vs. AO: Count Ratio [CR] = 0.51, 95% CI [0.30, 0.88]; RP vs. AO: CR = 0.34, 95% CI [0.19, 0.59]). After re-randomization both treatment conditions showed substantial improvements in PTSD symptoms and drinking between pre-treatment and post-treatment over the 12-month follow-up period, with RP showing an advantage on heavy drinking days. CONCLUSION: Treatments targeting one or the other aspects of the PTSD/AUD comorbidity may have salutary effects on both PTSD and drinking outcomes. These preliminary results suggest that people with this comorbidity may have viable treatment options whether they present for mental health or addiction care. TRIAL REGISTRATION: The trial is registered at clinicaltrials.gov (NCT01663337).

College student alcohol use and confidence to intervene in interpersonal violence: Differences by gender and sexual orientation.

Objectives: The current study examined the association between alcohol use frequency (ie, days a week one consumes alcohol), sexual and gender identity, and bystander confidence to intervene in interpersonal violence (ie, bystander self-efficacy). Participants: Participants were 750 undergraduate students aged 18-25 (260 heterosexual men, 260 heterosexual women, 59 SM men [54 cisgender, 5 transgender men], and 171 SM women [169 cisgender, 2 transgender women]). Methods: Participants completed an online survey about alcohol and sexual behaviors. Results: Results indicated that (1) alcohol use frequency was positively associated with greater bystander self-efficacy, (2) heterosexual men, compared to heterosexual women, reported lower bystander self-efficacy, and (3) the association between alcohol use frequency and bystander self-efficacy was significant and positive among heterosexual, but not SM, women. Conclusions: Prevention efforts may benefit from targeting individuals who drink more frequently and ensuring that they have the skills to effectively intervene.

Discussing substance use with clients during the COVID-19 pandemic: A motivational interviewing approach.

During the COVID-19 pandemic, trauma-exposed individuals may have heightened risk for substance use. Using substances to cope may contribute to the development of problematic substance use over time. It is imperative to initiate conversations about substance use with clients during this time and motivational interviewing offers an ideal framework for doing so. (PsycInfo Database Record (c) 2020 APA, all rights reserved).

Co-Occurring Post-Traumatic Stress Disorder and Alcohol Use Disorder in U.S. Military and Veteran Populations.

Co-occurring post-traumatic stress disorder (PTSD) and alcohol use disorder (AUD) are costly and consequential public health problems that negatively affect the health and well-being of U.S. military service members and veterans. The disproportionate burden of comorbid PTSD and AUD among U.S. military service members and veterans may be due to unique factors associated with military service, such as aspects of military culture, deployment, and trauma exposure. This review addresses the prevalence of co-occurring PTSD and AUD in military and veteran populations, population-specific factors that contribute to development of the comorbid conditions, and evidence-based treatments that have promise for addressing these conditions in military and veteran populations. Future directions for research and practice relevant to military and veteran populations are discussed.

Minority stress is longitudinally associated with alcohol-related problems among sexual minority women.

Compared to sexual minority men and heterosexual women, sexual minority women report elevated alcohol use in young adulthood. Heavy alcohol use and alcohol use disorders disproportionately affect sexual minority women across the lifespan, yet there is limited research investigating reasons for such associations. The present study investigates longitudinal associations between minority stress and both alcohol use as well as self-rated drinking consequences. Participants (N=1057) were self-identified lesbian (40.5%) and bisexual (59.5%) women between the ages of 18 to 25 recruited from across the U.S. using online advertisements. Participants completed four annual surveys. Hurdle mixed effects models were used to assess associations between minority stress and typical weekly drinking and drinking consequences one year later. Minority stress was not significantly associated with subsequent typical drinking. However, minority stress was significantly associated with having any alcohol consequences as well as the count of alcohol consequences one year later after controlling for covariates. Consistent with extant literature, this study provides evidence for a prospective association between minority stress experienced by sexual minority women and drinking consequences. This study also provides support for the potential impact of efforts to reduce minority stress faced by sexual minority women.

Modeling Cyclical Patterns in Daily College Drinking Data with Many Zeroes.

Daily college drinking data often have highly skewed distributions with many zeroes and a rising and falling pattern of use across the week. Alcohol researchers have typically relied on statistical models with dummy variables for either the weekend or all days of the week to handle weekly patterns of use. However, weekend versus weekday categorizations may be too simplistic and saturated dummy variable models too unwieldy, particularly when covariates of weekly patterns are included. In the present study we evaluate the feasibility of cyclical (sine and cosine) covariates in a multilevel hurdle count model for evaluating daily college alcohol use data. Results showed that the cyclical parameterization provided a more parsimonious approach than multiple dummy variables. The number of drinks when drinking had a smoothly rising and falling pattern that was reasonably approximated by cyclical terms, but a saturated set of dummy variables was a better model for the probability of any drinking. Combining cyclical terms and multilevel hurdle models is a useful addition to the data analyst toolkit when modeling longitudinal drinking with high zero counts. However, drinking patterns were not perfectly sinusoidal in the current application, highlighting the need to consider multiple models and carefully evaluate model fit.

Reciprocal relationships over time between descriptive norms and alcohol use in young adult sexual minority women.

Young adulthood, roughly ages 18-25, is a period of great risk for excessive consumption of alcohol, especially among sexual minority women (SMW). Despite the substantial literature examining the relationships between social norms and behavior in general, little attention has been given to the role of descriptive norms on the drinking behaviors of sexual minorities. The present study had 3 aims: to compare both typical woman descriptive norms and sexual minority-specific descriptive normative perceptions among a sample of SMW, to examine reciprocal associations between sexual minority-specific descriptive norms and alcohol consumption over time, and to examine whether these reciprocal associations were moderated by sexual orientation (i.e., whether 1 identifies as lesbian or bisexual). A national sample of 1,057 lesbian and bisexual women between the ages of 18 and 25 was enrolled in this study. Participants completed an online survey at 4 time points that assessed the constructs of interest. Results indicated that SMW consistently perceived that SMW drank more than their nonsexual minority peers; that SMW-specific descriptive drinking norms and alcohol consumption influenced 1 another over time in a reciprocal, feed-forward fashion; and that these associations were not moderated by sexual orientation. These findings highlight the importance of considering SMW-specific norms as an important factor in predicting alcohol consumption in SMW. Results further support the development and testing of normative interventions for high-risk drinking among SMW.

Current intimate relationship status, depression, and alcohol use among bisexual women: The mediating roles of bisexual-specific minority stressors.

Current intimate relationship characteristics, including gender and number of partner(s), may affect one's visibility as a bisexual individual and the minority stressors they experience, which may in turn influence their health. The current study tested four hypotheses: 1) minority stressors vary by current intimate relationship status; 2) higher minority stressors are associated with higher depressive symptoms and alcohol-related outcomes; 3) depressive symptoms and alcohol-related outcomes vary by current intimate relationship status; and 4) minority stressors will mediate differences in these outcomes. Participants included 470 self-identified bisexual women (65% Caucasian, mean age: 21) from a sample of sexual minority women recruited from different geographic regions in the United States through advertisements on social networking sites and Craigslist. Participants completed a 45 minute survey. Respondents with single partners were first grouped by partner gender (male partner: n=282; female partner: n=56). Second, women were grouped by partner gender/number (single female/male partner: n = 338; women with multiple female and male partners: n=132). Women with single male partners and women with multiple male and female partners exhibited elevated experienced bi-negativity and differences in outness (H1). Experienced and internalized bi-negativity were associated with health outcomes, but not outness (H2). Differences in outcomes emerged by partner number and partner number/gender (H3); these differences were mediated by experienced bi-negativity (H4). These results suggest that experiences of discrimination may underlie differences in health related to bisexual women's relationship structure and highlight the importance of evaluating women's relational context as well as sexual identification in understanding health risk behaviors.

Traumatic revictimization of men who have sex with men living with HIV/AIDS.

Abuse in childhood has been established as a predictor of adult abuse, with the strongest associations found between childhood sexual abuse (CSA) and adult sexual victimization. Revictimization has been demonstrated among women, and there is a growing literature on revictimization experiences among men who have sex with men (MSM). No studies have assessed revictimization among MSM living with HIV, despite strong evidence for disproportionately high rates of life span abuse among this group, along with the added vulnerability of living with HIV and sexual minority stress. In this study, we contribute to the literature by exploring associations between multiple types of childhood and adult abuse experiences (physical, sexual, and psychological; perpetrated by partners and non-partner), rather than examining sexual victimization alone. A sample of 166 HIV-positive MSM attending primary HIV health care clinics in Seattle, Washington, completed a one-time questionnaire. Results of regression analyses revealed associations between experiencing CSA and adult sexual abuse, and experiencing childhood physical abuse and adult physical and sexual abuse. Childhood psychological abuse was associated with adult physical and psychological abuse and partner psychological abuse. At higher frequencies, childhood psychological abuse was associated with all forms of adult abuse. These findings suggest that various forms of childhood abuse experiences confer broad vulnerability to adult abuse experiences and point to potentially different pathways to revictimization based on childhood abuse type.

Posttraumatic Cognitions, Somatization, and PTSD severity among Asian American and White College Women with Sexual Trauma Histories.

The need for trauma research with monoracial groups such as Asian Americans (AA) has recently been emphasized to better understand trauma experiences and inform interventions across populations. Given AA cultural contexts, posttraumatic cognitions and somatization may be key in understanding trauma experiences for this group. AA and White American (WA) trauma-exposed college women completed a survey on sexual trauma history, posttraumatic cognitions, somatic symptoms, and PTSD severity. For the overall sample, higher negative cognitions were associated with higher somatization. Asian race was associated with higher negative cognitions, which then predicted higher PTSD. Unexpectedly, WAs more strongly endorsed somatization than AAs. These findings indicate that posttraumatic cognitions may be helpful in understanding relationships between somatization and PTSD severity among those of Asian backgrounds and that the relationship between somatization and PTSD symptoms is culturally complex.

Drinking motives moderate daily relationships between PTSD symptoms and alcohol use.

Posttraumatic stress disorder (PTSD) and alcohol dependence (AD) frequently co-occur, although results of both cross-sectional and longitudinal studies evaluating the nature of their relationship have been mixed. There has been varied support for competing models explaining how these conditions influence one another. To assess both the self-medication and mutual maintenance models, as well as examine the potential moderating role of drinking motives, the current study used Generalized Estimating Equations to evaluate daily associations for an average of 7.3 days between PTSD symptoms and alcohol use in a mixed-gender sample of individuals who met criteria for both PTSD and AD. Results generally supported a self-medication model with elevated PTSD symptoms predictive of greater alcohol use on that same day and on the following day. Contrary to a mutual maintenance model prediction, drinking did not predict next-day PTSD symptoms. Results also indicated that both coping and enhancement drinking motives were significant moderators of the PTSD and drinking relationships, suggesting that these relationships may be more or less salient depending on an individual's particular drinking motivations. For example, among those higher on coping drinking motives, a 1-unit increase in PTSD symptom severity was associated with a 35% increase in amount of alcohol consumed the same day, while among those low on coping drinking motives, a 1-unit PTSD increase was associated with only a 10% increase in alcohol consumption. We discuss implications of these findings for the larger literature on the associations between PTSD and alcohol use as well as for clinical interventions. (PsycINFO Database Record (c) 2014 APA, all rights reserved).