Indirect associations between immigration-related stressors and latine adolescents' depressive symptoms: The moderating roles of familism, nativity, and gender.

OBJECTIVES: This study examined the indirect relationship between immigration-related stressors and depressive symptoms via family conflict and whether familism values moderated this relationship in a sample of U.S. Latine youth. We also explored nativity and gender differences in the predictive model. METHOD: Participants were 306 Midwestern Latine youth (Mage = 15.50, 46.2% girls, 79.9% Mexican origin) and their primary caregivers who completed measures of study constructs. A series of path models examined the potential mediating role of family conflict and the moderating effects of familism values, gender, and nativity. RESULTS: For the overall sample, parental exposure to immigration-related stressors was related to higher youth depressive symptoms through higher levels of family conflict. However, multigroup models revealed significant differences by nativity and gender. The indirect effect through family conflict was only significant for non-U.S.-born youth with low to average levels of familism-support and average to high levels of familism-obligation; it was not significant for U.S.-born youth. Furthermore, the indirect association was only significant for boys with average to high levels of familism-obligation; no significant indirect effects were found for girls. CONCLUSIONS: The results indicate that the indirect pathway linking immigration-related stressors to depressive symptoms via family conflict depends on youth familism values, nativity status, and gender. Findings highlight the distinct effects of familism-support and obligation and the need to consider sociodemographic diversity within Latine communities. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Effectiveness of contingency management using transdermal alcohol monitoring to reduce heavy drinking among driving while intoxicated (DWI) arrestees: A randomized controlled trial.

BACKGROUND: Driving while intoxicated (DWI) is a serious public health problem. However, treatment for DWI arrestees is not readily available. This study examines the effectiveness of a contingency management (CM) procedure using transdermal alcohol concentration (TAC) monitoring to reduce drinking among DWI arrestees. METHOD: The study participants were 216 DWI arrestees under pretrial and included both Mandated participants undergoing court-ordered TAC monitoring and Non-Mandated participants wearing a study-provided TAC monitor. Participants were randomly assigned to either a CM (Mandated = 35; Non-Mandated = 74) or a Control condition (Mandated = 37; Non-Mandated = 70) and completed the 8-week intervention. CM participants received $50/week for not exceeding a TAC of 0.02 g/dL during the previous week. Payments to Controls were yoked to the CM group. RESULTS: Among Non-Mandated participants, the probability of meeting the contingency was higher and remained stable (about 65%) over time in the CM group, whereas the probability was lower and declined in the Control group, widening the gaps in the probability between the study conditions (16.7%-24.1% greater in the CM group from visit 4 to 8, all p < 0.05). Among Mandated participants, the probability was not significantly different between conditions (p = 0.06-0.95). Furthermore, among Non-Mandated participants, the percentage of heavy drinking days remained low (9.16%-11.37%) in the CM group, whereas it was greater and increased over time (17.43%-26.59%) in the Control group. In Mandated participants, no significant differences in percent heavy drinking days were observed between conditions (p = 0.07-0.10). CONCLUSION: We found that contingency effects on alcohol use are more pronounced among frequent and heavy alcohol users, i.e., Non-Mandated DWI arrestees. However, for individuals whose drinking was already suppressed by existing contingencies (i.e., court-mandated TAC monitoring), our CM procedure did not produce additional reductions in drinking.

The age-varying effects of adolescent stress on impulsivity and sensation seeking.

Adolescence is defined in part by heightened exposure and sensitivity to stressors. In a longitudinal cohort of youth at risk for substance use problems, we examined the age-varying relationship between stress exposure and traits that are central to the dual systems model. The positive associations between stress exposure, impulsivity, sensation seeking varied as function of age. Specifically, the influence of stress exposure on impulsivity strengthened during early adolescence and remained stable into early adulthood, while the influence of stress exposure on sensation seeking strengthened from early- to mid-adolescence and weakened thereafter. These findings suggest that the maturational imbalance between the capacity to regulate impulsive tendencies and sensation seeking may be exaggerated for youth who are exposed to a high number of stressors.

Reduced alcohol use increases drink-refusal self-efficacy: Evidence from a contingency management study for DWI arrestees.

BACKGROUND: Several therapies and interventions to reduce drinking first target drink-refusal self-efficacy (DRSE) to influence drinking behavior. While higher self-efficacy scores are correlated with better outcomes, it is unclear that increased self-efficacy is the causative step leading to improved outcomes. Instead, this correlation may result from reduced drinking that increased self-efficacy. The current study sought to understand how changes in drinking behavior can influence DRSE. METHODS: Data were from 211 driving while intoxicated (DWI) arrestees participating in an 8-week contingency management (CM) study to reduce drinking. Some of participants were mandated by the courts to wear transdermal alcohol monitoring devices (Mandated group) and some were not mandated (Non Mandated group). All wore a transdermal alcohol monitor during the 8-week study and were randomized to CM or a Control condition stratified by the mandate group. Participants completed weekly assessments of DRSE. Group-based trajectory-modeling identified three drinking behavior trajectory groups. RESULTS: While there were no differences in baseline DRSE between the three trajectory groups, participants in the low- and moderate-frequency drinking behavior groups significantly increased DRSE across the study. CONCLUSION: The present study indicates that being able to maintain abstinence or reduce heavy drinking may increase DRSE.

The externalizing and internalizing pathways to marijuana use initiation: Examining the synergistic effects of impulsiveness and sensation seeking.

Adolescent marijuana use has become increasingly more problematic compared with the past; thus, understanding developmental processes that increase the liability of marijuana use is essential. Two developmental pathways to adolescent substance use have been proposed: an externalizing pathway that emphasizes the expression of aggressive and delinquent behavior, and an internalizing pathway that emphasizes the role of depressive symptoms and negative affect. In this study, we aimed to examine the synergistic role of impulsiveness and sensation seeking in the two risk pathways to determine whether both high and low levels of the traits are risk factors for marijuana use. Our study included 343 adolescents (52% were girls, 78% identified as Hispanic) that oversampled high-risk youth (78% had a family history of substance use disorder), assessed biannually between the ages of 13-16 years old. Moderated mediation analyses revealed that high levels of sensation seeking indirectly predicted marijuana use through higher mean levels of externalizing behavior. The positive relationship between sensation seeking and externalizing behavior was only significant at high levels of impulsiveness. Conversely, low levels of sensation seeking indirectly predicted marijuana use through higher mean levels of internalizing behavior. The negative relationship between sensation seeking and internalizing behavior was only significant at low levels of impulsiveness. Collectively, these results demonstrate that high and low levels of both impulsiveness and sensation seeking confer increased risk of marijuana use, albeit through different mechanisms. (PsycInfo Database Record (c) 2021 APA, all rights reserved).

Bicultural stress and internalizing symptoms among U.S. Latinx youth: The moderating role of peer and parent support.

OBJECTIVE: U.S. Latinx youth are at increased risk for internalizing problems, perhaps due to high levels of bicultural stress. Taking a resilience perspective, this study examined peer and parent support as potential protective factors that might buffer the effects of bicultural stress on depression and anxiety symptoms among U.S. Latinx youth. METHOD: Participants were 306 Midwestern U.S. Latinx adolescents (M age = 15.50%, 46.2% girls) and their primary caregivers who completed individual interviews. Measures included two types of cultural stress (acculturative and enculturative stress) and, for each type, distinguished the extent of exposure to stressors from the subjective intensity of stress reported. RESULTS: Results indicated that acculturative and enculturative stress were positively associated with internalizing symptoms, while social support from peers and parents was negatively associated with symptoms. Evidence regarding a stress-buffering effect of social support was mixed. Whereas higher levels of peer support mitigated the effects of subjective acculturative stress on depression and anxiety symptoms, parental support did not show a buffering effect. Moreover, in some cases, cultural stress appeared to attenuate the beneficial effect of social support. CONCLUSIONS: Although there was some support for the stress-buffering hypothesis, the impact of bicultural stressors depended on the type of stress considered and whether the focus was on exposure to stressors or subjective stress, as well as the source of social support. The findings highlight the complex effects of bicultural stress on U.S. Latinx youth mental health. (PsycInfo Database Record (c) 2021 APA, all rights reserved).

The Development of Impulsivity and Sensation Seeking: Associations with Substance Use among At-Risk Adolescents.

We investigated if the dual systems model could explain the increased rates of substance use among at-risk youth. This study sampled 365 adolescents, 289 of which had a family history of substance use disorder, assessed biannually between the ages 13-16 years old. Growth curve analyses revealed that higher levels of impulsivity were related to higher levels of sensation seeking and a slower rate of decline in impulsivity was related to a faster rate of increase in sensation seeking. Only family history status and sensation seeking were directly associated with substance use (marijuana, alcohol) at age 16, though family history status was also indirectly related to substance use through higher levels of impulsivity to higher levels of sensation seeking.

Factors associated with community versus personal care home discharges after inpatient stroke rehabilitation: the need for a pre-admission predictive model.

Background: Improved risk factor management and interventions have both been shown to improve mortality in stroke patients. Although this has been a success for acute care, it has placed a higher burden on stroke rehabilitation resources.Objectives: This study sought to identify the pre-stroke rehabilitation admission factors that best predict personal care home discharge.Methods: Using a retrospective case-control, chart review design, 60 patients discharged to personal care homes from inpatient stroke rehabilitation between 2008 and 2017 were included. One hundred and eighty-two patients discharged home over the same time span were randomly selected as controls. Statistical analysis was used to identify patient factors independently associated with discharge destination.Results: Patients were more often discharged to personal care homes if they were older (OR 1.09; CI [1.05-1.15]), had a lower functional independence measure score (OR 0.95; CI [0.92-0.97]), had cognitive deficits (OR 6.19; CI [2.37-18.06]), lived alone before their stroke (OR 7.77; CI [2.75-24.55]), and whether or not there was excessive truncal instability limiting Berg balance scale measurability (OR 0.17; CI [0.06-0.45] if able to measure). Combined, the predictive value of personal care home discharge using these variables was 91.6%.Conclusions: A combination of age, admission functional independence measure, cognitive impairment, pre-stroke living situation, and measurability of the Berg balance scale on admission to stroke rehabilitation were highly predictive of eventual personal care home discharge.

Platelet-Rich Plasma and the Knee-Applications in Orthopedic Surgery.

PURPOSE OF REVIEW: To consolidate and synthesize the most recent evidence on the effects of platelet-rich plasma (PRP) in the knee with respect to osteoarthritis, meniscal injuries, ACL reconstruction, total knee arthroplasty (TKA), and high tibial osteotomy. RECENT FINDINGS: PRP has been shown to be more beneficial in the context of knee osteoarthritis compared to both placebo and hyaluronic acid. Direct comparison with corticosteroid injections has been sparsely studied. It has also been shown to improve the clinical postoperative course in meniscal injuries and to a lesser extent TKA. Radiographic improvements without clinically significant benefits have been observed with ACL reconstructions treated with PRP. PRP injections may be more beneficial than other current non-surgical management options for specific knee pathologies. Further research should broaden the knowledge of PRP effects on the knee, and identify the type of PRP, growth factor distribution, and route of administration associated with the most benefit.

Temperamental Anger and Effortful Control, Teacher-Child Conflict, and Externalizing Behavior Across the Elementary School Years.

This study examined teacher-child conflict as a possible mediator of the effects of temperamental anger and effortful control on subsequent externalizing behavior. Reciprocal influences between teacher-child conflict and externalizing behavior were also examined. Participants were 1,152 children (49% female; 81.6% non-Hispanic White) from the Study of Early Child Care and Youth Development. Multivariate growth curve modeling revealed that greater effortful control at age 54 months indirectly predicted lower levels of, and subsequent changes in, externalizing behavior from kindergarten to Grade 6 through reduced teacher-child conflict. An alternative model, in which greater effortful control predicted lower teacher-child conflict through lower externalizing behavior, received less support. Within persons, greater-than-expected teacher-child conflict predicted greater-than-expected teacher-reported externalizing behavior concurrently and over time.

Reward Seeking and Cognitive Control: Using the Dual Systems Model to Predict Adolescent Sexual Behavior.

Research has provided support for the dual systems model of adolescent risk taking, but the model has rarely been applied to sexual behavior. Using data from the NICHD SECCYD (N = 958; Mage = 15.07, SD = 0.18), this study examined the effects of cognitive control, reward seeking, and their interaction on sexual behavior. Results of structural equation models revealed that performance on behavioral tasks assessing reward seeking and cognitive control uniquely predicted sexual intercourse, but the interaction between them was not significant. For oral sex, only cognitive control was a significant predictor. The findings provide additional support for the dual systems model, and suggest that reward seeking and cognitive control make unique contributions to adolescent sexual behavior.

Macromolecular and morphological evolution of poly(styrene sulfonate) complexes with tetradecyltrimethylammonium bromide.

Macromolecular characteristics and morphology of water-soluble complexes between sodium poly(styrene sulfonate) (PSS) and tetradecyltrimethylammonium bromide have been followed as a function of surfactant-to-polymer charge ratio (S/P) to elicit possible changes in the complexation mechanism. As revealed by light scattering, shorter PSS (30 and 150 repeat units) yield multichain complexes while longer PSS (450 and 5000 repeat units) form single-chain species throughout 0 < S/P < 0.9. Irrespective of PSS chain length, the complexes exist in solution in a swollen coil conformation and undergo a compaction with S/P but never collapse into a globule. Even when the free PSS chain is too short to coil (30 repeat units), the complexes adopt a coiled conformation due to multichain aggregation. Morphological changes (manifested by a hypochromic shift in UV spectra of the complexes at S/P < 0.5 and an increase in the local surfactant mobility observed at S/P > 0.5 by ESR) strongly suggest a change in the formation mechanism of the complexes with a transition near S/P = 0.5.