Longitudinal associations of friend-based social support and PTSD symptomatology during a cannabis cessation attempt

The day-to-day relationship between posttraumatic stress symptoms and social support after sexual assault

Background: Experiencing sexual assault is associated with a significant increase in risk for developing posttraumatic stress disorder and related concerns (e.g. alcohol misuse). Cross-sectional and longitudinal evidence suggests that social support may be both broadly protective against and eroded by posttraumatic stress symptoms. However, little is known about how different aspects of social support and posttraumatic stress symptoms influence each other in the weeks and months immediately following sexual assault, when posttraumatic stress (PTS) symptoms first emerge.Objective: The present study assessed the day-to-day relationship between social support and PTS in a sample of distressed, alcohol-using, recently-assaulted female survivors participating in a clinical trial of an app-based intervention (N = 41).Method: Participants completed 3 weeks of daily diaries starting within 10 weeks of sexual assault. Mixed-effects models were used to examine prior-day and same-day relationships between PTS and four social support constructs (social contact, emotional support, pleasantness of social interactions, and talking about sexual assault).Results: Results indicate that higher quantity and pleasantness of social interactions over the full sampling period was associated with lower PTS symptoms on any given day. Experiencing better-than-typical social interactions on one day was associated with lower than typical PTS symptoms on that day and the next day. On days when participants discussed their sexual assault with others, they tended to be having higher than usual PTS symptoms.Conclusions: Findings suggest that increasing the quantity and pleasantness of social interactions soon after sexual assault might protect against worsening posttraumatic stress symptoms.Trial registration: ClinicalTrials.gov identifier: NCT03703258.

Prospective associations between social support and posttraumatic stress disorder may be spurious: A re-meta-analysis of longitudinal studies and a simulation

A recent meta-analysis concluded to have found proof for both a social causation model, according to which social support protects against posttraumatic stress disorder (PTSD), and a social selection model, which claims that PTSD erodes social support. However, the prospective cross-lagged effects were estimated while adjusting for a prior measurement of the outcome and this method is vulnerable for spurious findings due to correlations with residuals and regression toward the mean. The present re-analyses of the meta-analytic effects indicated that depending on used model one can choose to claim that social support has either a decreasing, an increasing, or no prospective effect on subsequent change in PTSD symptom severity, and vice versa. Therefore, claims over and above a negative cross-sectional correlation between social support and PTSD, including the social causation and social selection models, can be questioned. The findings were validated by analyses of simulated data, which indicated that prospective effects were not necessary for the observed meta-analytic associations.

A discriminant analysis model of psychosocial predictors of problematic Internet use and cannabis use disorder in university students

Researchers have found similarities and differences between behavioral and drug addictions. The present study was designed to explore which of a series of psychosocial predictors of addictive behaviors could differentiate problematic Internet use (PIU) and Cannabis Use Disorder (CUD) in a sample of University students. A total of 144 participants (76 males, mean age = 23.03 years ± 2.83) were separated into three groups: those presenting with PIU (18 females, Mean age = 22.27 years), those presenting with CUD (22 female, Mean age = 22.73 years), and a control group (28 female, Mean age = 24.04 years). Participants completed the Internet Abusive Use Questionnaire (IAUQ), the Severity of Dependence Scale (SDS), the Multidimensional Scale of Perceived Social Support (MSPSS), the Barratt Impulsiveness Scale-11 (BIS-11), the Multidimensional Distress Tolerance Scale (MDTS), the Emotion Regulation Questionnaire (ERQ), the Metacognitions Questionnaire-30 (MCQ-30), and the Repetitive Thinking Questionnaire-10 (RTQ-10). The classification analysis results showed that 68.8% of the control group, 70.8% of the PIU group, and 81.3% of the CUD group were correctly classified in their respective groups. In addition, the results of the discriminant function analysis showed that there was a significant difference between members of the PIU and CUD groups in the degree of family support (0.45), significant other (0.33), tolerance of physical discomfort (0.30), reappraisal (0.42), and cognitive confidence (0.35). The findings provide evidence that specific psychosocial predictors can discriminate PIU from CUD.

Social support and posttraumatic stress disorder: A meta-analysis of longitudinal studies

Social support has long been associated with posttraumatic stress disorder (PTSD), but there is no consistent evidence on the strength and direction of this relationship. Whereas the social causation model claims that social support buffers against PTSD, the social selection model states that PTSD reduces social support resources. As the first meta-analysis of the prospective relationships between social support and PTSD, this study synthesized the available longitudinal data (75 samples including 32,402 participants) on these two constructs with a random-effects model. In total, three hundred and fifty-five effect sizes (including cross-sectional, prospective and cross-lagged coefficients) were included in the meta-analysis. With prior levels of the relevant outcomes controlled for, results showed that social support and PTSD reciprocally predicted each other over time with similar effect sizes: Social support predicted PTSD with β = -0.10; PTSD predicted social support with β = -0.09. Moderator analyses suggested that the effects held across most sample characteristics and research designs except for several moderators (gender, time lag, publication year, source of support). These findings provided strong evidence for both the social causation and social selection models, suggesting that the link between social support and PTSD is symmetrically reciprocal and robust.

Cannabis use among military veterans: A great deal to gain or lose?

Policy changes have resulted in dramatic increases in access to cannabis for medical purposes. Veterans are disproportionately affected by conditions for which medical cannabis is often pursued, making an evidence-based perspective on risks versus benefits of high priority. The current review sought to examine the state of the evidence on the correlates and consequences of cannabis use among veterans. Using a comprehensive search strategy, 501 articles were identified and 86 studies met criteria for inclusion. The literature was predominated by cross-sectional studies (67%) of male veterans (71.4%-100% male) from the United States (93.0%). Three overarching themes emerged, comprising cannabis associations with other substance use, mental health, and physical health outcomes. The balance of the evidence associated cannabis use with negative health outcomes, with consistent positive associations with other substance use, psychiatric disorders, and self-harm/suicidality. Few studies examined the therapeutic effects of cannabis, thus limiting the potential to evaluate evidence of efficacy. Priority areas for future research are studies using designs that can examine the directionality of links between cannabis and health in veterans more conclusively, and studies directly examining therapeutic efficacy of cannabis-based therapies in veterans. Methodologically rigorous design will be essential to inform clinical recommendations and practices guidelines in an era of burgeoning access to cannabis.

Bidirectional Relationships Between Posttraumatic Stress Disorder and Social Functioning During Cognitive Processing Therapy

This study investigated temporal relationships between posttraumatic stress symptoms and two indicators of social functioning during cognitive processing therapy. Participants were 176 patients (51.5% female, M age = 39.46 [SD = 11.51], 89.1% White, 42.6% active duty military/veteran) who participated in at least two assessment time points during a trial of cognitive processing therapy. Posttraumatic stress disorder (PTSD) symptoms (PTSD Checklist for DSM-IV) and interpersonal relationship and social role functioning problems (Outcome Questionnaire-45) were assessed prior to each of 12 sessions. Multivariate multilevel lagged analyses indicated that interpersonal relationship problems predicted subsequent PTSD symptoms (b = .22, SE = 0.09, cr = 2.53, p = .01, pr = .46) and vice versa (b = .05, SE = 0.02, cr = 2.11, p = .04, pr = .16); and social role functioning problems predicted subsequent PTSD symptoms (b = .21, SE = 0.10, cr = 2.18, p = .03, pr = .16) and vice versa (b = .06, SE = 0.02, cr = 3.08, p < .001, pr = .23). Military status moderated the cross-lag from social role functioning problems to PTSD symptoms (b = -.35, t = -2.00, p = .045, pr = .16). Results suggest a robust association between PTSD symptoms and social functioning during cognitive processing therapy with a reciprocal relationship between PTSD symptoms and social functioning over time. Additionally, higher social role functioning problems for patients with military status indicate smaller reductions in PTSD symptoms from session to session.

Risk of Posttraumatic Stress Disorder and Its Relationship With Perceived Social Support Among Family Caregivers of Individuals With Schizophrenia or Bipolar Disorder

A cross-sectional descriptive correlation study was performed to investigate the risk of posttraumatic stress disorder (PTSD) among 300 family caregivers of individuals with schizophrenia or bipolar disorder and examine the relationship between perceived social support and risk of PTSD. The Arabic version of the PTSD Checklist for DSM-5 (APCL-5) was used to investigate risk of PTSD; the Arabic version of the Multidimensional Scale of Perceived Social Support was used to measure perceived social support. Mean score of the APCL-5 was 46.1, indicating risk of PTSD among family caregivers. A negative moderate correlation was found between risk of PTSD and perceived social support. The caring process is demanding and highly stressful, putting family caregivers at risk for PTSD. Social support is crucial in decreasing this risk. [Journal of Psychosocial Nursing and Mental Health Services, 57(8), 37-43.].

Posttraumatic stress disorder and relationship functioning: A comprehensive review and organizational framework

Posttraumatic stress disorder (PTSD) is associated with impairments in relationship functioning. Beyond the abundance of research that has demonstrated this basic link, more recent research has begun to explore possible mediators and moderators of this association. The present paper reviews and synthesizes existing literature in the context of an overarching organizational framework of potential ways in which PTSD impacts relationship functioning. The framework organizes findings in terms of specific elements of PTSD and comorbid conditions, mediators (factors that are posited to explain or account for the association), and moderators (factors that are posited to alter the strength of the association). Specific symptoms of PTSD, comorbid symptoms, and many of the potential mediators explored have extensive overlap, raising questions of possible tautology and redundancy in findings. Some findings suggest that non-specific symptoms, such as depression or anger, account for more variance in relationship impairments than trauma-specific symptoms, such as re-experiencing. Moderators, which are characterized as individual, relational, or environmental in nature, have been the subject of far less research in comparison to other factors. Recommendations for future research and clinical implications of the findings reviewed are also presented.

A Cross-Lagged Panel Approach to Understanding Social Support and Chronic Posttraumatic Stress Disorder Symptoms in Veterans: Assessment Modality Matters

Although there is a strong and consistent association between social support and posttraumatic stress disorder (PTSD), the directionality of this association has been debated, with some research indicating that social support protects against PTSD symptoms, whereas other research suggests that PTSD symptoms erode social support. The majority of studies in the literature have been cross-sectional, rendering directionality impossible to determine. Cross-lagged panel models overcome many previous limitations; however, findings from the few studies employing these designs have been mixed, possibly due to methodological differences including self-report versus clinician-administered assessment. The current study used a cross-lagged panel structural equation model to explore the relationship between social support and chronic PTSD symptoms over a 1-year period in a sample of 264 Iraq and Afghanistan veterans assessed several years after trauma exposure. Approximately a third of the sample met criteria for PTSD at the baseline assessment, with veterans' trauma occurring an average of 6 years prior to baseline. Two separate models were run, with one using PTSD symptoms assessed via self-report and the other using clinician-assessed PTSD symptoms. Excellent model fit was found for both models. Results indicated that the relationship between social support and PTSD symptoms was affected by assessment modality. Whereas the self-report model indicated a bidirectional relationship between social support and PTSD symptoms over time, the clinician-assessed model indicated only that baseline PTSD symptoms predicted social support 1 year later. Results highlight that assessment modality is one factor that likely impacts disparate findings across previous studies. Theoretical and clinical implications of these findings are discussed, with suggestions for the growing body of literature utilizing these designs to dismantle this complex association.

Effects of social support on the association between precollege sexual assault and college-onset victimization

OBJECTIVE

This study examined the moderating and mediating effects of perceived social support on the association between precollege sexual assault (SA) and college-onset SA.

PARTICIPANTS

A representative sample of 6,132 undergraduates.

METHODS

The PLUM procedure in SPSS was used to test the moderation model, with individual regressions conducted in a hierarchical fashion. A weighted least squared mean and variance adjusted (WLSMV) mediation model was used to examine the mediating effect of social support.

RESULTS

Precollege SA significantly predicted college-onset SA. Social support significantly mediated the relation between precollege SA and college-onset SA. Social support was not a significant moderator of this relationship.

CONCLUSIONS

Given the high prevalence of SA among college populations, as well as the high rates of SA revictimization, identification of factors that may be related to repeated SA (eg, low social support) within this population are essential and may inform intervention, policy, and university student services.

Proximal relationships between social support and PTSD symptom severity: A daily diary study of sexual assault survivors

BACKGROUND

In cross-sectional studies, social support and posttraumatic stress disorder (PTSD) symptoms appear related, in that higher severity of PTSD is associated with lower social support and vice versa. Theoretical models of the causal direction of this relationship differ. Most longitudinal studies suggest that PTSD symptoms erode social support over time, although some suggest that higher social support is prospectively associated with decrease in PTSD symptom severity. It is unclear, though, how social support and PTSD affect each other in the short term. The purpose of this study was to test day-to-day relationships between PTSD and social support to elucidate how PTSD and social support influence each other.

METHODS

Using 1173 daily observations from 75 college women who met screening criteria for lifetime sexual assault and past-month PTSD, this study tested same-day and next-day relationships between PTSD and social support using mixed models.

RESULTS

Within-person analyses indicated that, when PTSD was higher than usual on a given day, social support was higher the next day. Between-person analyses suggested that people with generally higher social support tended to have lower PTSD symptoms on a given day, but average PTSD symptom severity was not associated with day-to-day fluctuations in social support.

CONCLUSIONS

Rather than eroding in response to daily symptoms, social support might be sought out following increases in PTSD, and when received consistently, might reduce symptoms of PTSD in the short term. Interventions that increase college women's access to social support after sexual assault may thus be helpful in addressing PTSD.