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1.
Prev Med ; 177: 107789, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-38016582

RESUMO

OBJECTIVE: The COVID-19 pandemic contributed to healthcare disruptions for patients with chronic pain. Following initial disruptions, national policies were enacted to expand access to long-term opioid therapy (LTOT) for chronic pain and opioid use disorder (OUD) treatment services, which may have modified risk of opioid overdose. We examined associations between LTOT and/or OUD with fatal and non-fatal opioid overdoses, and whether the pandemic moderated overdose risk in these groups. METHODS: We analyzed New York State Medicaid claims data (3/1/2019-12/31/20) of patients with chronic pain (N = 236,391). We used generalized estimating equations models to assess associations between LTOT and/or OUD (neither LTOT or OUD [ref], LTOT only, OUD only, and LTOT and OUD) and the pandemic (03/2020-12/2020) with opioid overdose. RESULTS: The pandemic did not significantly (ns) affect opioid overdose among patients with LTOT and/or OUD. While patients with LTOT (vs. no LTOT) had a slight increase in opioid overdose during the pandemic (pre-pandemic: aOR:1.65, 95% CI:1.05, 2.57; pandemic: aOR:2.43, CI:1.75,3.37, ns), patients with OUD had a slightly attenuated odds of overdose during the pandemic (pre-pandemic: aOR:5.65, CI:4.73, 6.75; pandemic: aOR:5.16, CI:4.33, 6.14, ns). Patients with both LTOT and OUD also experienced a slightly reduced odds of opioid overdose during the pandemic (pre-pandemic: aOR:5.82, CI:3.58, 9.44; pandemic: aOR:3.70, CI:2.11, 6.50, ns). CONCLUSIONS: Findings demonstrated no significant effect of the pandemic on opioid overdose among people with chronic pain and LTOT and/or OUD, suggesting pandemic policies expanding access to chronic pain and OUD treatment services may have mitigated the risk of opioid overdose.


Assuntos
COVID-19 , Dor Crônica , Overdose de Drogas , Overdose de Opiáceos , Transtornos Relacionados ao Uso de Opioides , Estados Unidos/epidemiologia , Humanos , Dor Crônica/tratamento farmacológico , Transtornos Relacionados ao Uso de Opioides/epidemiologia , Transtornos Relacionados ao Uso de Opioides/tratamento farmacológico , Overdose de Opiáceos/epidemiologia , Overdose de Opiáceos/tratamento farmacológico , Pandemias , New York/epidemiologia , Medicaid , Analgésicos Opioides/efeitos adversos , Overdose de Drogas/epidemiologia , Overdose de Drogas/tratamento farmacológico
2.
Drug Alcohol Depend ; 253: 111023, 2023 Dec 01.
Artigo em Inglês | MEDLINE | ID: mdl-37984034

RESUMO

BACKGROUND: The COVID-19 pandemic's impact on utilization of medications for opioid use disorder (MOUD) among patients with opioid use disorder (OUD) and chronic pain is unclear. METHODS: We analyzed New York State (NYS) Medicaid claims from pre-pandemic (August 2019-February 2020) and pandemic (March 2020-December 2020) periods for beneficiaries with and without chronic pain. We calculated monthly proportions of patients with OUD diagnoses in 6-month-lookback windows utilizing MOUD and proportions of treatment-naïve patients initiating MOUD. We used interrupted time series to assess changes in MOUD utilization and initiation rates by medication type and by race/ethnicity. RESULTS: Among 20,785 patients with OUD and chronic pain, 49.3% utilized MOUD (versus 60.3% without chronic pain). The pandemic did not affect utilization in either group but briefly disrupted initiation among patients with chronic pain (ß=-0.009; 95% CI [-0.015, -0.002]). Overall MOUD utilization was not affected by the pandemic for any race/ethnicity but opioid treatment program (OTP) utilization was briefly disrupted for non-Hispanic Black individuals (ß=-0.007 [-0.013, -0.001]). The pandemic disrupted overall MOUD initiation in non-Hispanic Black (ß=-0.007 [-0.012, -0.002]) and Hispanic individuals (ß=-0.010 [-0.019, -0.001]). CONCLUSIONS: Adults with chronic pain who were enrolled in NYS Medicaid before the COVID-19 pandemic had lower MOUD utilization than those without chronic pain. MOUD initiation was briefly disrupted, with disparities especially in racial/ethnic minority groups. Flexible MOUD policy initiatives may have maintained overall treatment utilization, but disparities in initiation and care continuity remain for patients with chronic pain, and particularly for racial/ethnic minoritized subgroups.


Assuntos
Buprenorfina , COVID-19 , Dor Crônica , Transtornos Relacionados ao Uso de Opioides , Adulto , Estados Unidos/epidemiologia , Humanos , COVID-19/epidemiologia , Dor Crônica/tratamento farmacológico , Dor Crônica/epidemiologia , Pandemias , Etnicidade , Grupos Minoritários , Transtornos Relacionados ao Uso de Opioides/complicações , Transtornos Relacionados ao Uso de Opioides/epidemiologia , Analgésicos Opioides/uso terapêutico , Buprenorfina/uso terapêutico , Tratamento de Substituição de Opiáceos
3.
Drug Alcohol Depend ; 249: 109911, 2023 Aug 01.
Artigo em Inglês | MEDLINE | ID: mdl-37301067

RESUMO

BACKGROUND: In the U.S., "War on Drugs" policies have led to large and unequal increases in arrests among particularly of Black/African American men. The change in the legal status of cannabis may reduce the racial disparity in arrests. We examined the impact of changing legal status on arrest disparities. METHODS: We obtained publicly available deidentified cannabis arrest data from the District of Columbia (D.C.) Metropolitan Police Department (2012-2019) and Los Angeles (L.A.) Police Department (2010-2019). We examined the differences in average monthly cannabis arrest rates for each city and each outcome (possession, possession with intent to distribute, distribution, and public consumption) across racial groups. RESULTS: For both D.C. and L.A. following changes in the legal status of cannabis, we saw a decrease of the absolute disparity in possession-related arrests. There was also a reduction in D.C. for the relative disparity, but there was an increase in the relative disparity in L.A. In both cities, there was an emergence of public consumption-arrests. In D.C., there was an absolute increase of 4.0 (SD=2.5) more arrests per-month for Black people than white people and a relative increase of 9.1 (SD=1.5). In L.A., absolute disparity of 0.6(SD=1.3) and a relative disparity of 6.7 (SD=2.0). CONCLUSIONS: There was a reduction in the absolute arrest disparity for cannabis-related possession arrests following decriminalization and legalization in both D.C and L.A. However, we saw the emergence of arrests for public consumption. This emergence of possession arrests towards public consumptions arrests, underscores the need to examine arrests beyond possession.


Assuntos
Cannabis , Masculino , Humanos , Cidades , Aplicação da Lei , Controle de Medicamentos e Entorpecentes , Polícia , Legislação de Medicamentos
4.
Drug Alcohol Depend ; 249: 110823, 2023 Aug 01.
Artigo em Inglês | MEDLINE | ID: mdl-37336006

RESUMO

BACKGROUND: Drug overdose deaths continue to rise, and considerable racial inequities have emerged. Overdose Good Samaritan laws (GSLs) are intended to encourage overdose witnesses to seek emergency assistance. However, evidence of their effectiveness is mixed, and little is known regarding racial disparities in their implementation. This study examined GSL impact by assessing racial differences in awareness of and trust in New York state's GSL. METHODS: Using a sequential mixed methods design, Black and white participants were recruited from an existing longitudinal cohort study of people who use illicit opioids in New York City to participate in a quantitative survey and qualitative interviews. Racially stratified survey responses were analyzed using chi-squared tests, Fisher exact tests, or t-tests. Qualitative interviews were analyzed using a hybrid inductive-deductive approach. RESULTS: Participants (n=128) were 56% male and predominantly aged 50 years or older. Most met criteria for severe opioid use disorder (81%). Fifty-seven percent reported that the New York GSL makes them more likely to call 911 even though 42% reported not trusting law enforcement to abide by the GSL; neither differed by race. Black people were less likely to have heard of the GSL (36.1% vs 60%) and were less likely to have accurate information regarding its protections (40.4% vs 49.6%). CONCLUSIONS: Though GSLs may reduce negative impacts of the criminalization of people who use drugs, their implementation may exacerbate existing racial disparities. Resources should be directed towards harm reduction strategies that do not rely on trust in law enforcement.


Assuntos
Overdose de Drogas , Humanos , Masculino , Feminino , Projetos Piloto , Estudos Longitudinais , Overdose de Drogas/tratamento farmacológico , Analgésicos Opioides/uso terapêutico , Cidade de Nova Iorque
5.
Curr Opin Psychiatry ; 36(3): 219-236, 2023 05 01.
Artigo em Inglês | MEDLINE | ID: mdl-36762668

RESUMO

PURPOSE OF REVIEW: As efforts to increase policing and roll back criminal legal system reforms in major U.S. cities rise, the collateral consequences of increased criminalization remain critical to document. Although the criminalization of mental illness has been well studied in the U.S., the mental health effects of criminalization are comparatively under-researched. In addition, despite extreme racial disparities in U.S. policing, there is limited understanding of how criminalization may contribute to racial disparities in mental health. RECENT FINDINGS: Literature included in this review covers various types of criminalization, including direct and indirect impacts of incarceration, criminalization of immigration, first-hand and witnessed encounters with police, and the effects of widely publicized police brutality incidents. All forms of criminalization were shown to negatively impact mental health (depression, anxiety and suicidality), with evidence suggestive of disproportionate impact on Black people. SUMMARY: There is evidence of significant negative impact of criminalization on mental health; however, more robust research is needed to address the limitations of the current literature. These limitations include few analyses stratified by race, a lack of focus on nonincarceration forms of criminalization, few longitudinal studies limiting causal inference, highly selected samples limiting generalizability and few studies with validated mental health measures.


Assuntos
Transtornos Mentais , Saúde Mental , Humanos , Estados Unidos/epidemiologia , Transtornos Mentais/epidemiologia , Polícia , Saúde da População Urbana , Cidades
6.
Harm Reduct J ; 20(1): 24, 2023 02 25.
Artigo em Inglês | MEDLINE | ID: mdl-36841763

RESUMO

BACKGROUND: Drug overdose mortality is rising precipitously among Black people who use drugs. In NYC, the overdose mortality rate is now highest in Black (38.2 per 100,000) followed by the Latinx (33.6 per 100,000) and white (32.7 per 100,000) residents. Improved understanding of access to harm reduction including naloxone across racial/ethnic groups is warranted. METHODS: Using data from an ongoing study of people who use illicit opioids in NYC (N = 575), we quantified racial/ethnic differences in the naloxone care cascade. RESULTS: We observed gaps across the cascade overall in the cohort, including in naloxone training (66%), current possession (53%) daily access during using and non-using days (21%), 100% access during opioid use (20%), and complete protection (having naloxone and someone who could administer it present during 100% of opioid use events; 12%). Naloxone coverage was greater in white (training: 79%, possession: 62%, daily access: 33%, access during use: 27%, and complete protection: 13%, respectively) and Latinx (training: 67%, possession: 54%, daily access: 22%, access during use: 24%, and complete protection: 16%, respectively) versus Black (training: 59%, possession: 48%, daily access:13%, access during use: 12%, and complete protection: 8%, respectively) participants. Black participants, versus white participants, had disproportionately low odds of naloxone training (OR 0.40, 95% CI 0.22-0.72). Among participants aged 51 years or older, Black race (versus white, the referent) was strongly associated with lower levels of being trained in naloxone use (OR 0.20, 95% CI 0.07-0.63) and having 100% naloxone access during use (OR 0.34, 95% CI 0.13-0.91). Compared to white women, Black women had 0.27 times the odds of being trained in naloxone use (95% CI 0.10-0.72). CONCLUSIONS: There is insufficient protection by naloxone during opioid use, with disproportionately low access among Black people who use drugs, and a heightened disparity among older Black people and Black women.


Assuntos
Overdose de Drogas , Overdose de Opiáceos , Transtornos Relacionados ao Uso de Opioides , Humanos , Feminino , Naloxona/uso terapêutico , Analgésicos Opioides/uso terapêutico , Cidade de Nova Iorque , Brancos , Overdose de Drogas/prevenção & controle , População Negra , Hispânico ou Latino
7.
Am J Public Health ; 113(S1): S43-S48, 2023 01.
Artigo em Inglês | MEDLINE | ID: mdl-36696623

RESUMO

The US overdose crisis continues to worsen and is disproportionately harming Black and Hispanic/Latino people. Although the "War on Drugs" continues to shape drug policy-at the disproportionate expense of Black and Hispanic/Latino people-states have taken some steps to reduce War on Drugs-related harms and adopt a public health-centered approach. However, the rhetoric regarding these changes has, in many cases, outstripped reality. Using overdose Good Samaritan Laws (GSLs) as a case study, we argue that public health-oriented policy changes made in some states are undercut by the broader enduring environment of a structurally racist drug criminalization agenda that continues to permeate and constrict most attempts at change. Drawing from our collective experiences in public health research and practice, we describe 3 key barriers to GSL effectiveness: the narrow parameters within which they apply, the fact that they are subject to police discretion, and the passage of competing laws that further criminalize people who use illicit drugs. All reveal a persisting climate of drug criminalization that may reduce policy effectiveness and explain why current reforms may be destined for failure and further disadvantage Black and Hispanic/Latino people who use drugs. (Am J Public Health. 2023;113(S1):S43-S48. https://doi.org/10.2105/AJPH.2022.307037).


Assuntos
Overdose de Drogas , Drogas Ilícitas , Humanos , Racismo Sistêmico , Overdose de Drogas/prevenção & controle , Overdose de Drogas/tratamento farmacológico , Polícia , Política Pública
8.
Am J Epidemiol ; 191(10): 1783-1791, 2022 09 28.
Artigo em Inglês | MEDLINE | ID: mdl-35872589

RESUMO

Overdose Good Samaritan laws (GSLs) aim to reduce mortality by providing limited legal protections when a bystander to a possible drug overdose summons help. Most research into the impact of these laws is dated or potentially confounded by coenacted naloxone access laws. Lack of awareness and trust in GSL protections, as well as fear of police involvement and legal repercussions, remain key deterrents to help-seeking. These barriers may be unequally distributed by race/ethnicity due to racist policing and drug policies, potentially producing racial/ethnic disparities in the effectiveness of GSLs for reducing overdose mortality. We used 2015-2019 vital statistics data to estimate the effect of recent GSLs on overdose mortality, overall (8 states) and by Black/White race/ethnicity (4 states). Given GSLs' near ubiquity, few unexposed states were available for comparison. Therefore, we generated an "inverted" synthetic control method (SCM) to compare overdose mortality in new-GSL states with that in states that had GSLs throughout the analytical period. The estimated relationships between GSLs and overdose mortality, both overall and stratified by Black/White race/ethnicity, were consistent with chance. An absence of effect could result from insufficient protection provided by the laws, insufficient awareness of them, and/or reticence to summon help not addressable by legal protections. The inverted SCM may be useful for evaluating other widespread policies.


Assuntos
Overdose de Drogas , Etnicidade , Overdose de Drogas/prevenção & controle , Humanos , Naloxona/uso terapêutico , Estados Unidos/epidemiologia
9.
J Aging Health ; 34(3): 334-346, 2022 06.
Artigo em Inglês | MEDLINE | ID: mdl-35418259

RESUMO

Objectives: While evidence highlights the detrimental mental health consequences of chronic stress exposure, the impact of this stress exposure on older Black Americans' mental health varies by exposure to other types of stressors like discrimination as well as subjective evaluations of stress like chronic stress appraisal. Methods: Using data from the 2010/2012 Health and Retirement Study, we use latent profile analysis (LPA) to describe 2,415 Black older adults experience with chronic stress exposure, appraisal, and discrimination and examine which stress contexts are associated with depressive symptomology. Results: Analyses revealed five stress clusters-demonstrating the diversity in the stress experience for older Black adults. Black older adults with stress profiles that include lower stress appraisal report fewer depressive symptoms regardless of number of stress exposures. Discussion: LPA is as an alternative approach to examining the stress-mental health link that can define stress profiles by both exposure and appraisal-based measures.


Assuntos
Negro ou Afro-Americano , Depressão , Negro ou Afro-Americano/psicologia , Idoso , População Negra , Humanos , Saúde Mental , Aposentadoria
10.
J Am Acad Child Adolesc Psychiatry ; 61(9): 1131-1140.e5, 2022 09.
Artigo em Inglês | MEDLINE | ID: mdl-35031449

RESUMO

OBJECTIVE: Deaths by suicide correlate both spatially and temporally, leading to suicide clusters. This study aimed to estimate racial patterns in suicide clusters since 2000. METHOD: Data from the US National Vital Statistics System included all International Classification of Diseases, Tenth Revision (ICD-10)-coded suicide cases from 2000-2019 among American Indian/Alaska Native (AI/AN), Asian/Pacific Islander (A/PI), Black, or White youth and young adults, aged 5-34 years. We estimated age, period, and cohort (APC) trends and identified spatiotemporal clusters using the SaTScan space-time statistic, which identified lower- and higher-than-expected suicide rates (cold and hot clusters) in a prespecified area (150 km) and time interval (15 months). We also calculated the average proportion of deaths by suicide contained in clusters, to quantify the relative importance of spatiotemporal patterning as a driver of overall suicide rates. RESULTS: From 2010-2019, suicide rates increased from between 37% among AI/AN (95% CI = 1.22, 1.55) to 81% among A/PI (95% CI = 1.65, 2.01) groups. Suicide clusters accounted for 0.8%-10.3% of all suicide deaths, across racial groups. Since 2000, the likelihood of detecting cluster increased over time, with considerable differences in the number of clusters in each racial group (4 among AI/AN to 72 among White youth). Among Black youth and young adults, 27 total clusters were identified. Hot clusters were concentrated in southeastern and mid-Atlantic counties. CONCLUSION: Suicide rates and clusters in youth and young adults have increased in the past 2 decades, requiring attention from policy makers, clinicians, and caretakers. Racially distinct patterns highlight opportunities to tailor individual- and population-level prevention efforts to prevent suicide deaths in emerging high-risk groups.


Assuntos
Suicídio , Adolescente , Criança , Humanos , Grupos Raciais , Estados Unidos/epidemiologia , Adulto Jovem
12.
Soc Sci Med ; 281: 114085, 2021 07.
Artigo em Inglês | MEDLINE | ID: mdl-34090157

RESUMO

The Black-white Depression paradox, the lower prevalence of major depression among non-Hispanic Black (relative to non-Hispanic white) individuals despite their greater exposure to major life stressors, is a phenomenon that remains unexplained. Despite a decade plus of research, there is little clarity as to whether the paradoxical observations are an invalid finding, spuriously produced by selection bias, information bias, or confounding, or are a valid finding, representative of a true racial patterning of depression in the population. Though both artefactual and etiologic mechanisms have been tested, a lack of synthesis of the extant evidence has contributed towards an unclear picture of the validity of the paradox and produced challenges for researchers in determining which proposed mechanisms show promise, which have been debunked, and which require further study. The objective of this critical review is to assess the state of the literature regarding explanations for the Black-white depression paradox by examining some of the more prominent hypothesized explanatory mechanisms that have been proposed and assessing the state of the evidence in support of them. Included mechanisms were selected for their perceived dominance in the literature and the existence of at least one, direct empirical test using DSM major depression as the outcome. This review highlights the very limited evidence in support of any of the extant putative mechanisms, suggesting that investigators should redirect efforts towards identifying novel mechanisms, and/or empirically testing those which show promise but to date have been relatively understudied. We conclude with a discussion of the broader implications of the evidence for well-accepted social theories and raise questions regarding the use of DSM major depression to assess mental health burden in Black communities.


Assuntos
Negro ou Afro-Americano , Transtorno Depressivo Maior , Depressão/epidemiologia , Transtorno Depressivo Maior/epidemiologia , Etnicidade , Humanos , População Branca
13.
Soc Sci Med ; 277: 113869, 2021 05.
Artigo em Inglês | MEDLINE | ID: mdl-33892418

RESUMO

The Environmental Affordances (EA) model posits that Black Americans' engagement with unhealthy behaviors (i.e. smoking, alcohol use, eating calorie-dense foods) to cope with stressor exposure may simultaneously account for their observed greater risk of chronic physical illness, and their observed equal or lesser prevalence of depression, relative to white Americans - the so-called "Black-white depression paradox." However, the specific mechanisms through which such effects might arise have been theorized and analyzed inconsistently across studies, raising concerns regarding the appropriateness of existing empirical tests of the model as well as the validity of the conclusions. We specify the two mechanisms most consistent with the EA model - 'Mediation-only' and 'Mediation and Modification' - and derive a priori predictions based on each. We systematically test these pathways using a subset of 559 participants of the Child Health and Development Study who were included in an adult follow-up study between 2010 and 2012 and self-identified as Black or white. Results failed to support either of the two mechanisms derived from the EA model, challenging the validity and utility of the model for explaining racial differences in depression; efforts to develop alternative hypotheses to explain the paradox are needed.


Assuntos
Negro ou Afro-Americano , Depressão , Adaptação Psicológica , Adulto , Criança , Depressão/epidemiologia , Depressão/etiologia , Seguimentos , Humanos , População Branca
14.
Mol Psychiatry ; 26(7): 3374-3382, 2021 07.
Artigo em Inglês | MEDLINE | ID: mdl-33828236

RESUMO

The role of sex, race, and suicide method on recent increases in suicide mortality in the United States remains unclear. Estimating the age, period, and cohort effects underlying suicide mortality trends can provide important insights for the causal hypothesis generating process. We generated updated age-period-cohort effect estimates of recent suicide mortality rates in the US, examining the putative roles of sex, race, and method for suicide, using data from all death certificates in the US between 1999 and 2018. After designating deaths as attributable to suicide according to ICD-10 underlying cause of death codes X60-X84, Y87.0, and U03, we (i) used hexagonal grids to describe rates of suicide by age, period, and cohort visually and (ii) modeled sex-, race-, and suicide method-specific age, period, and cohort effects. We found that, while suicide mortality increased in the US between 1999 and 2018 across age, sex, race, and suicide method, there was substantial heterogeneity in age and cohort effects by method, sex, and race, with a first peak of suicide risk in youth, a second peak in older ages-specific to male firearm suicide, and increased rates among younger cohorts of non-White individuals. Our findings should prompt discussion regarding age-specific clinical firearm safety interventions, drivers of minoritized populations' adverse early-life experiences, and racial differences in access to and quality of mental healthcare.


Assuntos
Suicídio , Adolescente , Idoso , Efeito de Coortes , Etnicidade , Humanos , Masculino , Pessoa de Meia-Idade , Estados Unidos/epidemiologia , Violência
15.
Lancet Healthy Longev ; 2(3): e115-e116, 2021 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-36098108
16.
Soc Psychiatry Psychiatr Epidemiol ; 55(4): 457-466, 2020 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-31542795

RESUMO

PURPOSE: Smoking and alcohol use have been posited as possible contributors to racial health disparities, despite higher smoking and alcohol use among non-Hispanic White youth and young adults compared to Blacks. To further investigate this claim, we aim to assess variation in alcohol and cigarette use across two distinct points of the life course. METHOD: Data are from a subset of 559 (279 male, 280 female) self-identified Black and White participants of the Child Health and Development study. Self-report alcohol and cigarette use were collected between age 15-17 and at mean age 50. Logistic regressions were estimated; supplementary analyses adjusted for maternal age, prenatal smoking, household income, childhood SES, and education. RESULTS: White participants were more likely to drink regularly (Odds ratio (OR) 2.2; 95%CI 1.2, 4.0) and be intoxicated (OR 2.0; 95%CI 1.2, 3.2) in adolescence compared with Blacks. In mid-adulthood, Whites remained more likely to currently drink (OR 2.3; 95%CI 1.6, 3.4) but among drinkers, less likely to binge drink (OR 0.4; 95%CI 0.2, 0.8). White participants were less likely to smoke in mid-adulthood (OR 0.4; 95%CI 0.3, 0.6), but among smokers, were more likely to smoke ≥ ½ a pack per day (OR 3.4; 95%CI 1.5, 7.8). CONCLUSIONS: Blacks were less likely to engage in drinking across the life course, but, among drinkers, more likely to binge drink in mid-adulthood. Blacks were more likely to smoke in mid-adulthood, but smoked infrequently compared with Whites. These patterns suggest that a reframing of disparities mechanisms to focus on broader structural and social factors may benefit progress in understanding and ameliorating inequities.


Assuntos
Consumo de Bebidas Alcoólicas/etnologia , Negro ou Afro-Americano/estatística & dados numéricos , Uso de Tabaco/etnologia , População Branca/estatística & dados numéricos , Adolescente , Adulto , Negro ou Afro-Americano/psicologia , Consumo de Bebidas Alcoólicas/epidemiologia , Feminino , Humanos , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Razão de Chances , Uso de Tabaco/epidemiologia , População Branca/psicologia
17.
Ann Epidemiol ; 27(10): 626-631, 2017 10.
Artigo em Inglês | MEDLINE | ID: mdl-28985986

RESUMO

PURPOSE: Prior studies examining the association between perceived stress and adiposity have reported mixed findings, and sex differences have largely not been examined. METHODS: We examined the relationship between perceived stress and body mass index (BMI) and waist circumference in young adults in the National Longitudinal Study of Adolescent to Adult Health. Participants (mean age 29 years; N = 14,044) completed the short form of Cohen's Perceived Stress Scale during a home visit. Height, weight, and waist circumference were assessed during the same visit. BMI was calculated based on measured height and weight. RESULTS: In the sample, 52% were male and 65% were identified as white. In adjusted linear regression analyses, a sex by Perceived Stress Scale interaction was noted (P < .05) for both BMI and waist circumference. Perceived stress was statistically significantly associated with lower BMI (ß: -0.09; standard error [SE]: 0.05) and was associated with lower waist circumference, although not statistically significant (ß: -0.18; SE: 0.10) among men. No associations were noted among women. CONCLUSIONS: In this nationally representative sample of young adults, perceived stress was associated with lower levels of adiposity among men. Noted differences could be attributed to different behavioral and coping strategies in response to stress between men and women as well as biological mechanisms which should be explored further.


Assuntos
Adiposidade , Caracteres Sexuais , Estresse Psicológico/psicologia , Circunferência da Cintura , Adolescente , Feminino , Humanos , Estudos Longitudinais , Masculino , Estresse Psicológico/epidemiologia , Adulto Jovem
18.
Eur J Neurosci ; 42(2): 1830-8, 2015 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-25865743

RESUMO

The suprachiasmatic nucleus (SCN) contains a circadian clock that generates endogenous rhythmicity and entrains that rhythmicity with the day-night cycle. The neurochemical events that transduce photic input within the SCN and mediate entrainment by resetting the molecular clock have yet to be defined. Because GABA is contained in nearly all SCN neurons we tested the hypothesis that GABA serves as this signal in studies employing Syrian hamsters (Mesocricetus auratus). Activation of GABAA receptors was found to be necessary and sufficient for light to induce phase delays of the clock. Remarkably, the sustained activation of GABAA receptors for more than three consecutive hours was necessary to phase-delay the clock. The duration of GABAA receptor activation required to induce phase delays would not have been predicted by either the prevalent theory of circadian entrainment or by expectations regarding the duration of ionotropic receptor activation necessary to produce functional responses. Taken together, these data identify a novel neurochemical mechanism essential for phase-delaying the 'master' circadian clock within the SCN as well as identifying an unprecedented action of an amino acid neurotransmitter involving the sustained activation of ionotropic receptors.


Assuntos
Relógios Circadianos/fisiologia , Luz , Receptores de GABA-A/metabolismo , Núcleo Supraquiasmático/metabolismo , Animais , Bicuculina/farmacologia , Relógios Circadianos/efeitos dos fármacos , Cricetinae , Relação Dose-Resposta a Droga , GABAérgicos/farmacologia , Masculino , Mesocricetus , Microinjeções , Muscimol/farmacologia , Tempo de Reação/efeitos dos fármacos , Núcleo Supraquiasmático/efeitos dos fármacos , Fatores de Tempo
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