Co-occurring Risk Factors Research Articles

It's Not Just Black and White: Identifying the Combined Influence of Multilevel Determinants of Tobacco Use Among Black Adolescents.

Black individuals are disproportionately affected by tobacco-related illnesses. Although tobacco use is often initiated in adolescence and risk factors thereof originate from multiple domains of influence, investigations of tobacco use among Black adolescents seldom consider these domains simultaneously. These examinations are needed to identify the impact of co-occurring risk factors on tobacco use and inform comprehensive tobacco prevention and treatment programs. Our study sought to identify the combined influence of factors across multiple domains on tobacco use among Black adolescents. Participants were non-Hispanic Black (N = 1,801) adolescent (ages 12 to 17 years) respondents from Wave 1 of the Population Assessment of Tobacco and Health Study. Latent class analysis identified unique response patterns to items assessing the risk of tobacco use across sociocultural, environmental, psychological, and behavioral (e.g., alcohol use) domains. Subsequent logistic regressions compared the odds of ever and current tobacco use between the classes. Four latent classes were identified. According to item response probabilities, they were named low risk (LR; 36.5%), low psychological (LP; 19.0%), high psychological (HP; 30.4%), and high social, psychological, and behavioral (HSPB; 14.1%) risk. The odds of ever and current tobacco use were highest among adolescents in the HSPB latent class compared with the other latent classes (odds ratio = 6.5 to 42.1). Adolescents with the highest odds of tobacco use endorse multiple risks including feeling distress, perceiving tobacco as beneficial for handling stress, and using substances, and may prioritize the management of negative emotions over perceived health consequences from tobacco use. Multilevel interventions that incorporate the development of coping strategies for effectively handling negative affect may prove highly effective in preventing tobacco use among Black adolescents.

Conceptual framework for preterm birth review in San Francisco.

Preterm birth persists as a leading cause of infant mortality and morbidity despite decades of intervention effort. Intervention null effects may reflect failure to account for social determinants of health (SDH) or jointly acting risk factors. In some communities, persistent preterm birth trends and disparities have been consistently associated with SDH such as race/ethnicity, zip code, and housing conditions. Health authorities recommend conceptual frameworks for targeted action on SDH and precision public health approaches for preterm birth prevention. We document San Francisco, California's experience identifying the need, rationale, methods, and pilot work for developing a conceptual framework for preterm birth review (PTBR) in San Francisco. The PTBR conceptual framework is intended to enable essential public health services in San Francisco that prevent a range of preterm birth phenotypes by guiding plans for data collection, hypothesis testing, analytical methods, reports, and intervention strategy. Key elements of the PTBR conceptual framework are described including, 10 domains of SDH, 9 domains at the whole person level, such as lived experience and health behaviors, 8 domains at the within-person level, such as biomarkers and clinical measures, 18 preterm birth phenotypes, and the interconnections between domains. Assumptions for the PTBR conceptual framework were supported by a scoping review of literature on SDH effects on preterm birth, health authority consensus reports, and PTBR pilot data. Researcher and health authority interest in each of the domains warrants the framework to prompt systematic consideration of variables in each proposed domain. PTBR pilot data, illustrated in heatmaps, confirm the feasibility of data collection based on the framework, prevalence of co-occurring risk factors, potential for joint effects on specific preterm birth phenotypes, and opportunity for intervention to block SDH effects on preterm birth. The proposed PTBR conceptual framework has practical implications for specifying (1) population groups at risk, (2) grids or heatmap visualization of risk factors, (3) multi-level analyses, and (4) multi-component intervention design in terms of patterns of co-occurring risk factors. Lessons learned about PTBR data collection logistics, variable choice, and data management will be incorporated into future work to build PTBR infrastructure based on the PTBR conceptual framework.

Substance use typologies among young people experiencing homelessness in seven cities across the United States: A latent class analysis

BackgroundSubstance use and other health-risk risk factors, including mental health, trauma, and sexual-risk behaviors, often co-occur among youth experiencing homelessness (YEH). The present study aimed to identify subgroups of YEH based on polysubstance use and the linkages to sociodemographic and health-risk characteristics. MethodsFrom June 2016 to July 2017, 1,426 YEH (aged 18–26 years) were recruited from seven cities (Houston, Los Angeles, Denver, Phoenix, New York City, St. Louis, San Jose). Participants provided information via a self-administered electronic survey on substance use, mental health, trauma, sexual risk behaviors, and sociodemographic characteristics. The majority of YEH identified as Black (37.3%), cisgender (92.8%), and heterosexual (69.2%). On average, YEH were 20.9 years (SD = 2.1). This study employed latent class analysis (LCA) to identify subgroups of YEH according to their substance use. Multinomial logistic regression analyses were conducted to identify sociodemographic and health-risk characteristics associated with class-membership. ResultsFour latent classes of YEH substance use were identified: (1) high polysubstance use; (2) moderate stimulant and high marijuana, alcohol, and prescription drug use; (3) high marijuana, alcohol, and prescription drug use; (4) low/moderate marijuana and alcohol use. Multinomial logistic regression models indicated that geographic location, gender, race/ethnicity, mental health, trauma history, and sexual risk behaviors were significant correlates of substance use class membership among YEH. ConclusionsThese findings offer important implications for the prevention and treatment of substance use among YEH. Screening protocols should consider co-occurring risk factors such as traumatic experiences, sexual risk behaviors, and mental health history as indicators of polysubstance use.

Abstract 15494: Racial and Ethnic Differences in Cardiovascular Health Among US Adults With a History of Cancer

Introduction: Evidence reports co-occurring risk factors between cardiovascular disease (CVD) and cancer and treatment-resultant cardiotoxicities amplifying CVD risks. Hypothesis: Given demographic disparities in CVD and cancer outcomes, we illustrated race and ethnicity-specific distributions of cardiovascular health (CVH) and quantified the contributions of socioeconomic factors to racial disparities in CVH among those with prior cancer. Methods: In the National Health Examination and Nutrition Survey 2011-2020, we identified 2628 adults aged ≥18 years with prior cancer. CVH was assessed based on the American Heart Association’s Life’s Essential 8 metrics. The Kitagawa-Blinder-Oaxaca decomposition quantified the magnitude of individual socioeconomic factors contributing to racial differences in CVH. Results: Of the 2628 US adults with prior cancer (mean[SD] age, 63.4[13.8] years; 57% women), 6.0% identified as Hispanic or Latino, 1.6% as non-Hispanic (NH) Asian, 5.2% as NH Black or African American, 84.1% as NH White, and 3.1% as uncategorized or multiple categories. NH Asian had the highest Life’s Essential 8 score (out of 100, women: 66.0; male: 69.2) in contrast to the poorest CVH in NH Black women (59.0) and Hispanic men (57.7). Overall, diet, physical activity, and body mass index were suboptimal. Across race, NH Black had the poorest blood pressure (women: 52.6, men: 41.8) and sleep (women: 74.3, men: 70.2), whereas uncategorized or multiracial group had high tobacco exposure (women: 43.6; men: 53.2). NH White women had the worst lipids (62.4), whereas NH Asian women (65.2) and Hispanic men (69.0) had the lowest glycemic score. Differences were partly explained by deprivation and low education contributing to poorer CVH among Hispanic and NH Black, whereas lower US nativity contributed to better CVH in NH Asian. Conclusions: CVH in US adults with prior cancer was suboptimal with significant racial disparities explained by socioeconomic factors.

Moderators of a Diet and Physical Activity Intervention: who Responds Best to Sequential vs. Simultaneous Approaches.

Given that low physical activity levels and poor dietary intake are co-occurring risk factors for chronic disease, there is a need for interventions that target both health behaviors, either sequentially or simultaneously. Little is known about participant characteristics that are associated with better or worse response to sequential and simultaneous interventions. The 12-month Counseling Advice for Lifestyle Management (CALM) randomized trial (N = 150; Mage = 55.3years) targeted these two behaviors either via a sequential approach - dietary advice first then exercise advice added ("Diet-First") or exercise advice first then dietary advice added ("Exercise-First") - or via a simultaneous approach. The objective was to examine demographic, clinical, and psychosocial moderators of intervention effects on 12-month change in (1) moderate-to-vigorous physical activity (MVPA), (2) fruit/vegetable intake, (3) caloric intake from saturated fat, and (4) weight. Hierarchical regressions first compared Diet-First to Exercise-First, followed by comparisons of these arms combined ("sequential") to the simultaneous arm. Older age, higher baseline BMI, and lower social support were associated with higher MVPA in Exercise-First vs. Diet-First, while lower tangible support was associated with higher fruit/vegetable intake in Exercise-First but not in Diet-First. Poor sleep was associated with higher levels of MVPA in the sequential arm than in the simultaneous arm. Lower vitality was associated with greater weight loss in the sequential arm than in the simultaneous arm, while the opposite was true for those who were not married. Identifying moderators of treatment response can allow the behavioral medicine field to enhance intervention efficacy by matching participant subgroups to their best-fitting interventions. NCT00131105.

Hearing loss is associated with decreased default-mode network connectivity in individuals with mild cognitive impairment

Mild cognitive impairment (MCI) and hearing loss (HL) have been separately associated with increased dementia risk. These highly co-occurring dementia risk factors are associated with aberrant functional brain connectivity. In individuals with HL aberrant functional connectivity has been associated with cognitive impairment. In individuals with MCI, aberrant brain connectivity has been associated with severity of cognitive impairment and conversion to dementia. Despite the high prevalence of HL in individuals with MCI, the relationship between the two is understudied, especially in the context of functional connectivity. Participantsinclude 94 older adults with MCI. Hearing measures include pure-tone hearing thresholds and speech-reception thresholds. In analyses with pure-tone hearing loss, participants were classified as having normal hearing (n = 60) or hearing loss (n = 34) based on a pure-tone screening protocol. We used independent component analyses on resting-state functional magnetic resonance imaging data to identify the default-mode network (DMN). Analysis of variance with covariate control was used to investigate DMN connectivity differences between the normally hearing individuals with MCI and individuals with MCI and pure-tone HL. A linear regression was used to investigate the relationship between speech-reception threshold and DMN connectivity in the whole sample.Compared to those with MCI and normal hearing, those with MCI and pure-tone HL had decreased connectivity between the DMN and the caudate and thalamus. There was no difference in DMN connectivity as a function of speech-reception threshold.Our findings indicate that in individuals with MCI, HL is associated with decreased connectivity between the DMN and regions important for sensory and cognitive processing. This suggests that the increased risk for cognitive decline and dementia in individuals with HL may be due to decreased DMN connectivity in individuals with HL.

Sex differences in the association between stroke risk factors and pre-clinical predictors of stroke in the childhood determinants of Adult Health study

Background and aimsIt is unclear why blood pressure (BP), metabolic markers and smoking increase stroke incidence in women more than men. We examined these associations with carotid artery structure and function in a prospective cohort study. MethodsParticipants in the Australian Childhood Determinants of Adult Health study at ages 26–36 years (2004–06) were followed-up at 39–49 years (2014–19). Baseline risk factors included smoking, fasting glucose, insulin, systolic and diastolic BP. Carotid artery plaques, intima-media thickness [IMT], lumen diameter and carotid distensibility [CD] were assessed at follow up. Log binomial and linear regression with risk factor × sex interactions predicted carotid measures. Sex-stratified models adjusting for confounders were fitted when significant interactions were identified. ResultsAmong 779 participants (50% women), there were significant risk factor × sex interactions with baseline smoking, systolic BP and glucose associated with carotid measures in women only. Current smoking was associated with incidence of plaques (RRunadjusted 1.97 95% CI 1.4, 3.39), which reduced when adjusted for sociodemographics, depression, and diet (RRadjusted 1.82 95% CI 0.90, 3.66). Greater systolic BP was associated with lower CD adjusted for sociodemographics (βadjusted −0.166 95% CI -0.233, −0.098) and hypertension with greater lumen diameter (βunadjusted 0.131 95% CI 0.037, 0.225), which decreased when adjusted for sociodemographics, body composition and insulin (βadjusted 0.063 95% CI -0.052, 0.178). Greater glucose (βunadjusted −0.212 95% CI -0.397, −0.028) was associated with lower CD, which decreased when adjusted for sociodemographics, BP, depression and polycystic ovary syndrome (βadjusted −0.023 95% CI -0.249, 0.201). ConclusionsSmoking, SBP and glucose affect carotid structure and function more in women than men with some of this risk due to co-occurring risk factors.

Military experiences, connection to military identity, and time since military discharge as predictors of United States veteran suicide risk

ABSTRACT Veterans navigating the military-to-civilian transition appear at elevated risk for suicide. However, research on the transition-suicide association often fails to consider co-occurring risk factors. The independent association of time since military discharge and suicide among veterans therefore remains unclear. Data from 1,495 post-Vietnam community veterans provided estimates of suicide risk, military-based stressful experiences, connection to military identity, and recency of military discharge. Hierarchical regression analyses examined independent, incremental utility of factors associated with suicide risk after controlling for quality of life, age, and duration of military service among the total veteran sample and a subsample discharged from military service within five years prior. The resulting model explained 41% of variance in suicide risk in the total veteran sample and 51% of variance in suicide risk in the recently discharged subsample. Recency of discharge, combat exposure, moral injury, poor quality of life, and poor psychological wellness showed statistically significant, independent associations with suicide risk, whereas connection to military identity did not show significant, independent associations. Results highlight the salience of the military-to-civilian transition as an independent risk factor for veteran suicide even after controlling for military-based stressful experiences, military identity, quality of life, age, and service duration.

Indoor Tanning among Sexual and Gender Minority Adolescents and Adults: Results from the 2020 Pennsylvania LGBT Health Needs Assessment.

Sexual and gender minority (SGM) populations include individuals whose sexual orientation, gender identity, or reproductive development is characterized by nonbinary sexual constructs (e.g., lesbian, gay, bisexual, and transgender (LGBT) individuals). Previous research suggests that some SGM populations have higher rates of skin cancer. The purpose of this study was to assess the association of diverse SGM identities with indoor tanning, a risk factor for skin cancer, while exploring other relevant co-occurring risk factors. A secondary analysis was performed on the 2020 LGBT Health Needs Assessment collected by the Pennsylvania Department of Health. Measures included sexual orientation, gender identity, healthcare utilization, and cancer risk factors. Cisgender SGM men are more likely to use indoor tanning devices (adjusted odds ratio (aOR) = 1.79; 95% CI: 1.31-2.44) compared to other SGM subpopulations independent of sexual orientation. Indoor tanning was also associated with alcohol (aOR = 1.94; 95% CI: 1.50-2.51) and tobacco use (aOR = 1.64; 95% CI: 1.21-2.21). Findings suggest that targeted screening for skin cancer risk behaviors could accompany standard tobacco and alcohol screenings in clinical practice.

Comparison of Person-Centered and Cumulative Risk Approaches in Explaining the Relationship Between Adverse Childhood Experiences and Behavioral and Emotional Problems.

Adverse childhood experiences (ACEs) commonly co-occur, and researchers often estimate their impact using a cumulative risk approach. The person-centered approach offers another approach to operationalize the co-occurrence of ACEs. This study aims to estimate latent classes of ACEs in a sample of U.K. children, examine their relationship with emotional and behavioral problems, and compare the explanatory value of the latent classes to cumulative risk scores. Data were collected among a general population sample of British 10-year-old children extracted from the U.K. Household Longitudinal Study (N = 601). Seven items characterized ACEs, comprising parent-report physical discipline, emotional abuse, supervisory neglect, maternal psychological distress, child-report parental educational disinterest, bullying victimization, and adverse neighborhood. Outcome measures were derived from the self-report Strengths and Difficulties Questionnaire including total difficulties, emotional symptoms, conduct problems, hyperactivity, peer problems, and prosocial behavior. Latent class analysis resulted in a three-class solution: low ACEs, household challenges, and community challenges. Compared to the other classes, the community challenges class scored substantially worse on total difficulties, emotional symptoms, and peer subscales. The cumulative risk score was associated with all outcomes except prosocial behavior. Cumulative risk models accounted for a larger proportion of variance compared with the latent class models, except for peer problems which the person-centered model explained better. This study confirms that ACEs are associated with impairment in child functioning, and that both person-centered and cumulative risk approaches can capture this relationship well. Specifically, the person-centered approach demonstrated how co-occurring risk factors in the community challenges class produced particularly poor internalizing outcomes.

Diet, Physical Activity, and Stress Among Wheelchair Users With Multiple Sclerosis: Examining Individual and Co-Occurring Behavioral Risk Factors

ObjectiveThis study examined individual and co-occurring behavioral risk factors (diet, exercise, and stress) in wheelchair users with multiple sclerosis (MS) and potential association with MS symptoms (ie, fatigue, depression, anxiety, pain, sleep, and health-related quality of life [HRQOL]). DesignSurvey. SettingGeneral Community. ParticipantsOne hundred twenty-three wheelchair users with MS completed this study (N=123). InterventionsNot applicable. Main Outcome MeasuresParticipants were mailed instructions for accessing online questionnaires (demographic and clinical characteristics, Godin Leisure-Time Exercise Questionnaire, Perceived Stress Scale, Automated Self-Administered 24-Hour Dietary Assessment Tool, and MS symptoms). ResultsStandard cut-points were used to categorize behavioral risk factors and then identify the extent and distribution of these behaviors both individually and co-occurring. We then analyzed the associations between behavioral risk factors and MS symptoms using bivariate correlation analyses and Mann-Whitney U tests. The mean age of participants was 60.6±10.0 years, 76% identified as women, 82% had a progressive disease course, and the mean MS duration was 23.0±9.7 years. Seven participants were classified as having 0 negative health behaviors, 41 participants had 1 negative health behavior, 49 participants had 2 negative health behaviors, and 26 participants had 3 negative health behaviors. The number of negative health behaviors was significantly correlated with HRQOL (physical, r=.30; psychological, r=.47), sleep (r=.25), depressive symptoms (r=.36), and anxiety (r=.43). Mann-Whitney U tests indicated greater fatigue, depression, and anxiety as well as lower sleep quality and HRQOL among participants who reported 2 or 3 behavioral risk factors compared with 0 or 1 behavioral risk factor. ConclusionsFuture research should examine the design and implementation of multiple health behavior change interventions targeting co-occurring behavioral risk factors among wheelchair users with MS.

Chronic lead exposure exacerbates hepatic glucolipid metabolism disorder and gut microbiota dysbiosis in high-fat-diet mice.

Lead (Pb) and obesity are co-occurring risk factors for metabolic disorders. However, there is still a lack of study on the combined effects of both stressors on metabolism. C57BL/6J mice were exposed to 200mg/L Pb or/and HFD for 24 weeks and were used to investigate the effects and underlying mechanisms of chronic Pb exposure on obese mice. The results showed that Pb significantly increased body weight, visceral obesity, fasting blood glucose levels, and insulin resistance, and aggravated liver damage, hepatic lipid accumulation and steatosis in HFD-fed mice. Further analysis showed that Pb significantly inhibited insulin signaling pathway PI3K/AKT and fatty acid β-oxidation, and accelerated fatty acid synthesis. Moreover, Pb exacerbated HFD-induced disruption of gut microbiota homeostasis, manifested by increased proportions of pathogenic genera such as Desulfovibrio, Alistipes and Helicobacter, and decreased proportions of beneficial microbes Akkermansia and Barnesiella, which were negatively associated with obesity. These results indicated that Pb exposure exacerbated the disruption of liver glucolipid metabolism in HFD mice possibly by disrupting gut microbiota.

An Alzheimer's dementia cumulative risk model in a sample of general population over 65: Public health implications

Background and objectivesWith the population ageing, the identification of modifiable risk factors for dementia represents a public health priority. Co-occurrence of risk factors in the same individual is more frequent than an isolated appearance and may create synergistic effects, with an increased risk of negative outcomes such as dementia and mortality. We aim to study the cumulative risk of incident Alzheimer's Dementia (AD) in a community sample aged >65 (n= 3044). MethodsTo this end, we will examine the impact on the risk of AD of the co-occurrence of variables that have previously been shown to increase risk: age, gender, education, marital status, depression, anxiety, body mass index (BMI) and hearing loss. ResultsThe most frequent number of co-occurring risk factors was 3. We found a cumulative increased risk of both death and AD by the confluence of 2 or more risk factors. Using a competing risk regression model, each increase in a co-occurring risk factor was associated with a significant increase in the risk of incident AD of more than two-fold. By the analysis of the Population Attributable Fractions (PAF) of AD due to several risk factors, we found that if 4 or more co-occurring risk factors could be eliminated from the population, the prevalence of AD would be reduced by approximately 38%. ConclusionOur study offers an estimate of the impact that preventive interventions could have if the number of modifiable risk factors of AD at a population level.

Abnormal Cytokines in Trauma Patients Explained by Obesity, Musculoskeletal Disease, Smoking, and Lung Disease

Introduction: Low-grade inflammation observed through abnormal plasma cytokine levels has been associated with post-traumatic stress disorder (PTSD). It is not clear whether PTSD independently causes the inflammation or if it is mainly through co-occurring somatic factors such as smoking and obesity. We wanted to explore the effects of biopsychosocial factors on cytokine levels in a clinical setting. Methods: The sample consisted of 51 patients with PTSD, 58 trauma patients without PTSD, and 40 matched controls. We selected cytokines and relevant risk factors for systemic inflammation through pairwise correlations. Then, we used linear regression to analyze the individual and combined effects of these on the (Log₁₀) cytokines, particularly estimating the effect of PTSD adjusted for other factors. Results: Higher age, female gender, cigarette smoking, presence of lung and musculoskeletal disease, use of antipsychotic medication, and higher BMI were correlated with higher levels of interleukins IL-1RA, IL-2RA, and IL-6. In the adjusted regression analysis, higher BMI was associated with increased IL-1RA (B = 0.06, p < 0.01), IL-2RA (B = 0.01, p < 0.01), and IL-6 (B = 0.01, p = 0.03). Presence of musculoskeletal disease was associated with increased IL-1RA (B = 0.72, p < 0.01) and IL-6 (B = 0.16, p = 0.01), and decreased IL-2RA (B = −0.09, p < 0.01). Cigarette smoking (B = 0.16, p = 0.01) and presence of lung disease (B = 0.14, p = 0.02) were associated with increased IL-6. PTSD diagnosis was associated with decreased IL-2RA (B = −0.06, p = 0.04). Discussion/Conclusion: Altered cytokine levels in distressed trauma-affected individuals are probably mostly through co-occurring risk factors and not PTSD diagnosis. Increased BMI and musculoskeletal (pain) disease may be particularly strong risk factors and should be addressed.

Youth at the intersection of parental incarceration and foster care: Examining prevalence, disparities, and mental health

BackgroundWhile there are various pathways by which children experience parental incarceration or foster care, involvement in either system is associated with adverse health outcomes. Despite co-occurring risk factors for parental incarceration and foster care, little is known about the prevalence or characteristics of youth navigating both of these experiences. ObjectivesThis study details the prevalence of youth at the intersection of parental incarceration and foster care, their demographic characteristics, and heterogeneity in their mental health. Participants and settingData come from the 2019 Minnesota Student Survey with 112,157 eighth-, ninth-, and eleventh-grade students. MethodsLogistic regression with interactions between parental incarceration and foster care predict associated odds of youth's anxiety and depression; self-injurious behavior, suicidal ideation and attempt; and mental health diagnoses and treatment. ResultsNearly 2 % of students experienced both parental incarceration and foster care, with a disproportionate number of those identifying as youth of color, experiencing poverty, and/or living in rural communities. Both parental incarceration and foster care were separately linked with poor mental health, yet experiencing both was associated with higher odds of anxiety, depression, self-injury, suicidal ideation, suicide attempt, diagnosis, and treatment. Youth with proximal multiplicative exposure (recent foster care and current parental incarceration) reported the most adverse mental health symptoms. ConclusionThe study emboldens what is known about the inequitable distribution of parental incarceration and foster care. These findings highlight the association between dual-systems-impacted youth and mental health indicators, with important implications for increasing access to mental health services while simultaneously calling for systems change.

Adolescents with substance use problems in outpatient treatment: a one-year prospective follow-up study focusing on mental health and gender differences

BackgroundAlthough several studies have found a high incidence of coexisting mental health problems among adolescents with substance use problems, follow-up studies addressing how these conditions change over time are rare. The study will describe and analyze indications of mental health problems and how various risk factors predict outcomes 1 year after initial treatment contact. In addition, gender-specific risk factors are explored.MethodsA clinical sample of 455 adolescents (29% girls, median age 17 years) answered a structural interview at baseline and were followed up using official records 1 year after initiated treatment. Bivariate associations and logistic regressions were conducted to analyse the links between risk factors at the individual, social, and structural levels as well as links between various mental illness symptoms at treatment start and indications of mental health problems 1 year later were analysed.ResultsThe results show that mental health problems among adolescents largely persisted 1 year after start of outpatient care for substance use problems. Forty-two per cent of the sample displayed indications of mental health problems at follow-up, and registrations for both outpatient treatment and psychiatric medication were more common among the girls. Girls also reported more mental illness symptoms at treatment start than boys did, especially anxiety. Depression and suicidal thoughts had predictive values regarding indications of mental health problems and small cumulative effects were found for 6–10 co-occurring risk factors.ConclusionsAdolescents with depression and suicidal thoughts at treatment start should yield attention among clinicians as these general risk factors could predict indication of mental health problems at 1 year follow-up effectively. Also, patients with more than six co-occurring risk factors seem more vulnerable for continued mental health problems. Generally, girls displayed a greater mental health and psychosocial burden at treatment initiation and were more likely to show indication of mental health problems at follow-up. These results suggests that girls are more likely to get psychiatric out-treatment parallel to, or after, substance abuse treatment. We recommend further investigation of gender differences and gender-specific needs in substance use treatment.

“The role of case management in HIV treatment adherence: HPTN 078”

Adherence to care and antiretroviral therapy is challenging, especially for people living with HIV (PLWH) with additional co-occurring risk factors. Case management interventions, including motivational interviewing (MI), show promise to improve HIV treatment adherence, but few studies have examined how such interventions are delivered to or experienced by PLWH who have been reengaged in care. We conducted qualitative interviews with six case managers and 110 PLWH exiting from a randomized study (HPTN 078) who received a MI-based case management intervention in addition to standard patient-navigation services, or standard services only. Our study provided greater insight into the main findings from HPTN 078, including an in-depth description of the multiple barriers to adherence faced by this largely “out-of-care” population, as well as a more nuanced understanding of the benefits and challenges of implementing MI. A blend of MI plus more intensive interventions may be needed for PLWH facing multiple structural barriers.

Combined exposure of lead and high-fat diet enhanced cognitive decline via interacting with CREB-BDNF signaling in male rats

The health risks to populations induced by lead (Pb) and high-fat diets (HFD) have become a global public health problem. Pb and HFD often co-exist and are co-occurring risk factors for cognitive impairment. This study investigates effect of combined Pb and HFD on cognitive function, and explores the underlying mechanisms in terms of regulatory components of synaptic plasticity and insulin signaling pathway. We showed that the co-exposure of Pb and HFD further increased blood Pb levels, caused body weight loss and dyslipidemia. The results from Morris water maze (MWM) test and Nissl staining disclosed that Pb and HFD each contributed to cognitive deficits and neuronal damage and combined exposure enhanced this toxic injury. Pb and HFD decreased the levels of synapsin-1, GAP-43 and PSD-95 protein related to synaptic properties and SIRT1, NMDARs, phosphorylated CREB and BDNF related to synaptic plasticity regulatory, and these decreases was greater when combined exposure. Additionally, we revealed that Pb and HFD promoted IRS-1 phosphorylation and subsequently reduced downstream PI3K-Akt kinases phosphorylation in hippocampus and cortex of rats, and this process was aggravated when co-exposure. Collectively, our data suggested that combined exposure of Pb and HFD enhanced cognitive deficits, pointing to additive effects in rats than the individual stress effects related to multiple signaling pathways with CREB-BDNF signaling as the hub. This study emphasizes the need to evaluate the effects of mixed exposures on brain function in realistic environment and to better inform prevention of neurological disorders via modulating central pathway, such as CREB/BDNF signaling.

Risk factors for suicide attempts among U.S. military veterans: A 7-year population-based, longitudinal cohort study.

Population-based data on risk factors for suicide attempts among veterans remains limited. A national probability sample of 2307 veterans was followed over the course of four timepoints spanning seven years to examine how a range of baseline risk factors predict incident suicide attempt. Suicide attempt data were aggregated into a single follow-up timepoint. Sixty-two veterans (3.1%) reported attempting suicide during the 7-year period. The strongest risk factors for suicide attempts were higher baseline levels of loneliness, lower baseline levels of adaptive psychosocial traits (e.g., dispositional gratitude), baseline thoughts of self-harm, and greater post-baseline trauma exposures (12.3%-41.3% of explained variance). Veterans with multiple co-occurring risk factors were at greatest risk for attempts; of veterans with 0, 1, 2, 3, and all 4 of these factors, the predicted probability of suicide attempt was 2.0%, 5.3%, 13.5%, 30.4%, and 55.0%, respectively. Baseline loneliness, dispositional gratitude, thoughts of self-harm, and new-onset traumas emerged as the strongest risk factors for suicide attempts among veterans, underscoring the potential importance of targeting these factors in prevention efforts. Veterans with multiple co-occurring risk factors have substantially greater risk for suicide attempts, suggesting that examination of multiple coinciding vulnerability factors may help improve suicide risk prediction models.

Air pollution and environmental health disparities: how disadvantaged communities may be particularly susceptible to poor reproductive outcomes

BACKGROUND AND AIM: Disadvantage communities face differential exposure to high levels of air pollution and other environmental hazards. In addition to having fewer resources and several co-occurring risk factors such as increased psychosocial stress, fewer opportunities for health promoting behaviors and less access to high quality health care, they also have less access to protective factors. These factors drive differential susceptibility across population subgroups and can explain why disadvantaged populations suffer disproportionately from the negative health effects of air pollution. The aim of this presentation is to describe different models that frame differential exposure and susceptibility and provide evidence to support these phenomenon specifically among pregnant people and those who may become pregnant. METHODS: I will present three frameworks/conceptual models that are rooted in theory and capture the way social and environmental factors interact to produce environmental health disparities. RESULTS:The social production of disease model, the integrated social-environmental model of health and well-being, and the stress-exposure-disease model will be discussed. I will highlight the important contributions of each. Shared mechanistic pathways such as those involved with the stress response system (i.e., allostatic load), the inflammatory and sympathathic nervous systems will be emphasized. Lastly, I will present empirical evidence to support the theorized mechanisms and upstream social and contextual factors that contribute to environmental health disparities, with a specific emphasis on race and socioeconomic status, in reproductive health. CONCLUSIONS:The use of conceptual frameworks rooted in theory can strengthen environmental health disparities research. KEYWORDS: air pollution, environmental health disparities, conceptual models, reproductive health