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1.
Arch Womens Ment Health ; 20(5): 687-694, 2017 10.
Artigo em Inglês | MEDLINE | ID: mdl-28664216

RESUMO

We examined the utility of screening instruments to identify risk factors for suicidal ideation (SI) in a population of women with neuropsychiatric illnesses at high risk for postpartum depression. Pregnant women with neuropsychiatric illness enrolled prior to 20 weeks of gestation. Follow-up visits at 4-8-week intervals through 13 weeks postpartum included assessment of depressive symptoms with both clinician and self-rated scales. A total of 842 women were included in the study. Up to 22.3% of postpartum women admitted SI on rating scales, despite the majority (79%) receiving active pharmacological treatment for psychiatric illness. Postpartum women admitting self-harm/SI were more likely to meet criteria for current major depressive episode (MDE), less than college education, an unplanned pregnancy, a history of past suicide attempt, and a higher score on the Childhood Trauma Questionnaire. In women with a history of neuropsychiatric illness, over 20% admitted SI during the postpartum period despite ongoing psychiatric treatment. Patient-rated depression scales are more sensitive screening tools than a clinician-rated depression scale for +SI in the postpartum period.


Assuntos
Depressão/diagnóstico , Mães/psicologia , Período Pós-Parto/psicologia , Gravidez/psicologia , Gestantes/psicologia , Comportamento Autodestrutivo/epidemiologia , Comportamento Autodestrutivo/psicologia , Ideação Suicida , Adulto , Estudos Transversais , Depressão/psicologia , Transtorno Depressivo Maior/epidemiologia , Transtorno Depressivo Maior/psicologia , Feminino , Seguimentos , Georgia/epidemiologia , Humanos , Trimestres da Gravidez , Escalas de Graduação Psiquiátrica , Psicometria , Reprodutibilidade dos Testes , Fatores de Risco , Sensibilidade e Especificidade , Inquéritos e Questionários , Adulto Jovem
2.
Behav Brain Res ; 332: 136-144, 2017 08 14.
Artigo em Inglês | MEDLINE | ID: mdl-28551067

RESUMO

Reciprocity is central to human relationships and is strongly influenced by multiple factors including the nature of social exchanges and their attendant emotional reactions. Despite recent advances in the field, the neural processes involved in this modulation of reciprocal behavior by ongoing social interaction are poorly understood. We hypothesized that activity within a discrete set of neural networks including a putative moral cognitive neural network is associated with reciprocity behavior. Nineteen healthy adults underwent functional magnetic resonance imaging scanning while playing the trustee role in the Trust Game. Personality traits and moral development were assessed. Independent component analysis was used to identify task-related functional brain networks and assess their relationship to behavior. The saliency network (insula and anterior cingulate) was positively correlated with reciprocity behavior. A consistent array of brain regions supports the engagement of emotional, self-referential and planning processes during social reciprocity behavior.


Assuntos
Altruísmo , Encéfalo/fisiologia , Relações Interpessoais , Confiança , Adolescente , Adulto , Encéfalo/diagnóstico por imagem , Mapeamento Encefálico , Feminino , Jogos Experimentais , Humanos , Imageamento por Ressonância Magnética , Masculino , Princípios Morais , Testes Neuropsicológicos , Personalidade , Testes de Personalidade , Análise de Regressão , Inquéritos e Questionários , Confiança/psicologia , Adulto Jovem
3.
Arch Womens Ment Health ; 19(1): 3-10, 2016 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-26173597

RESUMO

The study aimed to examine the course of obsessive-compulsive disorder (OCD) across pregnancy and its impact on obstetric and neonatal outcomes. Women enrolled prior to 20-week gestation in a prospective, observational study. The Structured Clinical Interview for DSM-IV was completed to obtain lifetime Axis I diagnoses. A total of 56 women with OCD were followed at 1 to 3-month intervals through 52 weeks postpartum. Each visit, the Yale-Brown Obsessive Compulsive Scale (YBOCS), clinical assessment, and medication/exposure tracking were performed. Obstetric and neonatal data were abstracted from the medical record. In subjects with OCD, associations between perinatal obsessive-compulsive symptoms (OCSs) and outcomes were examined. Additionally, outcomes were compared to 156 matched psychiatric patients without OCD. Maternal age inversely correlated with the YBOCS scores across the study period (ß = -0.5161, p = .0378). Cesarean section was associated with increased OCSs in the postpartum period compared to vaginal delivery (ß = 5.3632, p = 0.043). No associations were found between severity of perinatal obsessions or compulsions and any specific obstetric or neonatal complications. Subjects without OCD had higher frequency of fetal loss compared to mothers with OCD (χ (2) = 4.03, p = 0.043). These novel prospective data fail to identify an association of OCSs with adverse outcomes. In contrast, there is an association of delivery method and younger maternal age with increased postnatal symptoms of OCD. Psychiatric subjects without OCD may have a higher risk of miscarriage and intrauterine fetal demise compared to subjects with OCD.


Assuntos
Transtorno Obsessivo-Compulsivo/diagnóstico , Transtorno Obsessivo-Compulsivo/psicologia , Período Pós-Parto/psicologia , Complicações na Gravidez/diagnóstico , Complicações na Gravidez/psicologia , Adulto , Manual Diagnóstico e Estatístico de Transtornos Mentais , Feminino , Humanos , Transtorno Obsessivo-Compulsivo/epidemiologia , Parto , Gravidez , Complicações na Gravidez/epidemiologia , Resultado da Gravidez , Segundo Trimestre da Gravidez , Estudos Prospectivos , Escalas de Graduação Psiquiátrica , Fatores de Risco , Índice de Gravidade de Doença , Fatores Socioeconômicos , Estados Unidos/epidemiologia
4.
J Psychiatr Res ; 64: 23-31, 2015 May.
Artigo em Inglês | MEDLINE | ID: mdl-25805246

RESUMO

BACKGROUND AND AIMS: Drug addictions are debilitating disorders that are highly associated with personality abnormalities. Early life stress (ELS) is a common risk factor for addiction and personality disturbances, but the relationships between ELS, addiction, and personality are poorly understood. METHODS: Ninety-five research participants were assessed for and grouped by ELS history and cocaine dependence. NEO-FFI personality measures were compared between the groups to define ELS- and addiction-related differences in personality traits. ELS and cocaine dependence were then examined as predictors of personality trait scores. Finally, k-means clustering was used to uncover clusters of personality trait configurations within the sample. Odds of cluster membership across subject groups was then determined. RESULTS: Trait expression differed significantly across subject groups. Cocaine-dependent subjects with a history of ELS (cocaine+/ELS+) displayed the greatest deviations in normative personality. Cocaine dependence significantly predicted four traits, while ELS predicted neuroticism and agreeableness; there was no interaction effect between ELS and cocaine dependence. The cluster analysis identified four distinct personality profiles: Open, Gregarious, Dysphoric, and Closed. Distribution of these profiles across subject groups differed significantly. Inclusion in cocaine+/ELS+, cocaine-/ELS+, and cocaine-/ELS- groups significantly increased the odds of expressing the Dysphoric, Open and Gregarious profiles, respectively. CONCLUSIONS: Cocaine dependence and early life stress were significantly and differentially associated with altered expression of individual personality traits and their aggregation as personality profiles, suggesting that individuals who are at-risk for developing addictions due to ELS exposure may benefit from personality centered approaches as an early intervention and prevention.


Assuntos
Maus-Tratos Infantis/psicologia , Transtornos Relacionados ao Uso de Cocaína/complicações , Transtornos da Personalidade/etiologia , Estresse Psicológico/complicações , Adolescente , Adulto , Análise de Variância , Distribuição de Qui-Quadrado , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Determinação da Personalidade , Valor Preditivo dos Testes , Escalas de Graduação Psiquiátrica , Estresse Psicológico/psicologia , Adulto Jovem
5.
Neurosci Lett ; 564: 21-6, 2014 Apr 03.
Artigo em Inglês | MEDLINE | ID: mdl-24513233

RESUMO

Independent component analysis (ICA) is a data-driven approach frequently used in neuroimaging to model functional brain networks. Despite ICA's increasing popularity, methods for replicating published ICA components across independent datasets have been underemphasized. Traditionally, the task-dependent activation of a component is evaluated by first back-projecting the component to a functional MRI (fMRI) dataset, then performing general linear modeling (GLM) on the resulting timecourse. We propose the alternative approach of back-projecting the component directly to univariate GLM results. Using a sample of 37 participants performing the Multi-Source Interference Task, we demonstrate these two approaches to yield identical results. Furthermore, while replicating an ICA component requires back-projection of component beta-values (ßs), components are typically depicted only by t-scores. We show that while back-projection of component ßs and t-scores yielded highly correlated results (ρ=0.95), group-level statistics differed between the two methods. We conclude by stressing the importance of reporting ICA component ßs, rather than component t-scores, so that functional networks may be independently replicated across datasets.


Assuntos
Mapeamento Encefálico/métodos , Encéfalo/fisiologia , Processamento de Imagem Assistida por Computador/métodos , Rede Nervosa/fisiologia , Adulto , Feminino , Humanos , Imageamento por Ressonância Magnética , Masculino , Análise de Regressão
6.
Neuropsychopharmacology ; 39(5): 1135-47, 2014 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-24196947

RESUMO

Cocaine and other drug dependencies are associated with significant attentional bias for drug use stimuli that represents a candidate cognitive marker of drug dependence and treatment outcomes. We explored, using fMRI, the role of discrete neural processing networks in the representation of individual differences in the drug attentional bias effect associated with cocaine dependence (AB-coc) using a word counting Stroop task with personalized cocaine use stimuli (cocStroop). The cocStroop behavioral and neural responses were further compared with those associated with a negative emotional word Stroop task (eStroop) and a neutral word counting Stroop task (cStroop). Brain-behavior correlations were explored using both network-level correlation analysis following independent component analysis (ICA) and voxel-level, brain-wide univariate correlation analysis. Variation in the attentional bias effect for cocaine use stimuli among cocaine-dependent men and women was related to the recruitment of two separate neural processing networks related to stimulus attention and salience attribution (inferior frontal-parietal-ventral insula), and the processing of the negative affective properties of cocaine stimuli (frontal-temporal-cingulate). Recruitment of a sensory-motor-dorsal insula network was negatively correlated with AB-coc and suggested a regulatory role related to the sensorimotor processing of cocaine stimuli. The attentional bias effect for cocaine stimuli and for negative affective word stimuli were significantly correlated across individuals, and both were correlated with the activity of the frontal-temporal-cingulate network. Functional connectivity for a single prefrontal-striatal-occipital network correlated with variation in general cognitive control (cStroop) that was unrelated to behavioral or neural network correlates of cocStroop- or eStroop-related attentional bias. A brain-wide mass univariate analysis demonstrated the significant correlation of individual attentional bias effect for cocaine stimuli with distributed activations in the frontal, occipitotemporal, parietal, cingulate, and premotor cortex. These findings support the involvement of multiple processes and brain networks in mediating individual differences in risk for relapse associated with drug dependence.


Assuntos
Atenção/fisiologia , Encéfalo/fisiopatologia , Transtornos Relacionados ao Uso de Cocaína/fisiopatologia , Transtornos Relacionados ao Uso de Cocaína/psicologia , Individualidade , Adulto , Mapeamento Encefálico/métodos , Emoções/fisiologia , Feminino , Humanos , Processamento de Imagem Assistida por Computador/métodos , Imageamento por Ressonância Magnética , Masculino , Análise Multivariada , Vias Neurais/fisiopatologia , Tempo de Reação , Teste de Stroop , Análise e Desempenho de Tarefas
7.
Hum Brain Mapp ; 35(4): 1654-67, 2014 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-23616424

RESUMO

Childhood adversity represents a major risk factor for drug addiction and other mental disorders. However, the specific mechanisms by which childhood adversity impacts human brain organization to confer greater vulnerability for negative outcomes in adulthood is largely unknown. As an impaired process in drug addiction, inhibitory control of behavior was investigated as a target of childhood maltreatment (abuse and neglect). Forty adults without Axis-I psychiatric disorders (21 females) completed a Childhood Trauma Questionnaire (CTQ) and underwent functional MRI (fMRI) while performing a stop-signal task. A group independent component analysis identified a putative brain inhibitory control network. Graph theoretical analyses and structural equation modeling investigated the impact of childhood maltreatment on the functional organization of this neural processing network. Graph theory outcomes revealed sex differences in the relationship between network functional connectivity and inhibitory control which were dependent on the severity of childhood maltreatment exposure. A network effective connectivity analysis indicated that a maltreatment dose-related negative modulation of dorsal anterior cingulate (dACC) activity by the left inferior frontal cortex (IFC) predicted better response inhibition and lesser attention deficit hyperactivity disorder (ADHD) symptoms in females, but poorer response inhibition and greater ADHD symptoms in males. Less inhibition of the right IFC by dACC in males with higher CTQ scores improved inhibitory control ability. The childhood maltreatment-related reorganization of a brain inhibitory control network provides sex-dependent mechanisms by which childhood adversity may confer greater risk for drug use and related disorders and by which adaptive brain responses protect individuals from this risk factor.


Assuntos
Encéfalo/fisiopatologia , Maus-Tratos Infantis , Função Executiva/fisiologia , Inibição Psicológica , Adulto , Transtorno do Deficit de Atenção com Hiperatividade/psicologia , Mapeamento Encefálico/métodos , Criança , Feminino , Humanos , Comportamento Impulsivo , Imageamento por Ressonância Magnética/métodos , Masculino , Vias Neurais/fisiologia , Testes Neuropsicológicos , Escalas de Graduação Psiquiátrica , Desempenho Psicomotor/fisiologia , Fatores Sexuais , Processamento de Sinais Assistido por Computador , Inquéritos e Questionários , Análise e Desempenho de Tarefas
8.
J Neurosurg ; 119(2): 288-300, 2013 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-23706058

RESUMO

OBJECT: Functional neuroimaging has shown that the brain organizes into several independent networks of spontaneously coactivated regions during wakeful rest (resting state). Previous research has suggested that 1 such network, the default mode network (DMN), shows diminished recruitment of the hippocampus with temporal lobe epilepsy (TLE). This work seeks to elucidate how hippocampal recruitment into the DMN varies by hemisphere of epileptogenic focus. METHODS: The authors addressed this issue using functional MRI to assess resting-state DMN connectivity in 38 participants (23 control participants, 7 patients with TLE and left-sided epileptogenic foci, and 8 patients with TLE and right-sided foci). Independent component analysis was conducted to identify resting-state brain networks from control participants' data. The DMN was identified and deconstructed into its individual regions of interest (ROIs). The functional connectivity of these ROIs was analyzed both by hemisphere (left vs right) and by laterality to the epileptogenic focus (ipsilateral vs contralateral). RESULTS: This attempt to replicate previously published methods with this data set showed that patients with left-sided TLE had reduced connectivity between the posterior cingulate (PCC) and both the left (p = 0.012) and right (p < 0.002) hippocampus, while patients with right-sided TLE showed reduced connectivity between the PCC and right hippocampus (p < 0.004). After recoding ROIs by laterality, significantly diminished functional connectivity was observed between the PCC and hippocampus of both hemispheres (ipsilateral hippocampus, p < 0.001; contralateral hippocampus, p = 0.017) in patients with TLE compared with control participants. Regression analyses showed the reduced DMN recruitment of the ipsilateral hippocampus and parahippocampal gyrus (PHG) to be independent of clinical variables including hippocampal sclerosis, seizure frequency, and duration of illness. The graph theory metric of strength (or mean absolute correlation) showed significantly reduced connectivity of the ipsilateral hippocampus and ipsilateral PHG in patients with TLE compared with controls (hippocampus: p = 0.028; PHG: p = 0.021, after correction for false discovery rate). Finally, these hemispheric asymmetries in strength were observed in patients with TLE that corresponded to hemisphere of epileptogenic focus; 87% of patients with TLE had weaker ipsilateral hippocampus strength (compared with the contralateral hippocampus), and 80% of patients had weaker ipsilateral PHG strength. CONCLUSIONS: This study demonstrated that recoding brain regions by the laterality to their epileptogenic focus increases the power of statistical approaches for finding interhemispheric differences in brain function. Using this approach, the authors showed TLE to selectively diminish connectivity of the hippocampus and parahippocampus in the hemisphere of the epileptogenic focus. This approach may prove to be a useful method for determining the seizure onset zone with TLE, and could be broadly applied to other neurological disorders with a lateralized onset.


Assuntos
Epilepsia do Lobo Temporal/fisiopatologia , Hipocampo/fisiopatologia , Rede Nervosa/fisiopatologia , Giro Para-Hipocampal/fisiopatologia , Adulto , Feminino , Lateralidade Funcional/fisiologia , Neuroimagem Funcional , Humanos , Processamento de Imagem Assistida por Computador , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Neurônios/fisiologia
9.
Am J Med Genet B Neuropsychiatr Genet ; 159B(7): 829-40, 2012 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-22915309

RESUMO

The monoamine neurotransmitter, serotonin, critically regulates the function of the cerebral cortex and is involved in psychiatric disorders. Tryptophan hydroxylase (TPH) is the rate-limiting enzyme in the synthesis of serotonin with the neuron-specific TPH2 isoform present exclusively in the brain and encoded by the TPH2 gene on chromosome 12q21. The haplotype structure of TPH2 was defined for 16 single-nucleotide polymorphisms (SNPs) in a healthy subject population and a haplotype block analysis confirmed the presence of a six SNP haplotype in a yin configuration that has previously been associated with risk for suicidality, depression, and anxiety disorders. Functional magnetic resonance imaging (fMRI) was used to assess the influence of TPH2 variation on brain function related to cognitive control using the Multi-Source Interference Task (MSIT). The MSIT-related blood oxygen level-dependent (BOLD) response was increased with increasing copies of the TPH2 yin haplotype for the dorsal anterior cingulate cortex (dACC), right inferior frontal cortex (IFC), and anterior striatum. A functional connectivity analysis further revealed that increasing numbers of the TPH2 yin haplotype was associated with diminished functional coupling between the dACC and the right IFC, precentral gyrus, parietal cortex and dlPFC. A moderation analysis indicated that the relationship between neural processing networks and cognitive control was significantly modulated by allelic variation for the TPH2 yin haplotype. These findings suggest that the association of risk for psychiatric disorders with a common TPH2 yin haplotype is related to the inefficient functional engagement of cortical areas involved in cognitive control and alterations in the mode of functional connectivity of dACC pathways.


Assuntos
Reserva Cognitiva , Giro do Cíngulo/metabolismo , Haplótipos , Triptofano Hidroxilase/genética , Adolescente , Adulto , Feminino , Humanos , Desequilíbrio de Ligação , Masculino , Pessoa de Meia-Idade , Vias Neurais
10.
AIDS Patient Care STDS ; 26(5): 265-73, 2012 May.
Artigo em Inglês | MEDLINE | ID: mdl-22536930

RESUMO

Although crucial for efficacy of pharmacotherapy, adherence to prescribed medication regimens for both antiretrovirals and antidepressants is often suboptimal. As many depressed HIV-infected individuals are prescribed both antiretrovirals and antidepressants, it is important to know whether correlates of nonadherence are similar or different across type of regimen. The HIV Translating Initiatives for Depression into Effective Solutions (HI-TIDES) study was a single-blinded, longitudinal, randomized controlled effectiveness trial comparing collaborative care to usual depression care at three Veterans Affairs HIV clinics. The current investigation utilized self-report baseline interview and chart-abstracted data. Participants were 225 depressed HIV-infected patients who were prescribed an antidepressant (n=146), an antiretroviral (n=192), or both (n=113). Treatment adherence over the last 4 days was dichotomized as "less than 90% adherence" or "90% or greater adherence." After identifying potential correlates of nonadherence, we used a seemingly unrelated regression (SUR) bivariate probit model, in which the probability of adherence to HIV medications and the probability of adherence to antidepressant medications are modeled jointly. Results indicated that 75.5% (n=146) of those prescribed antiretrovirals reported 90%-plus adherence to their antiretroviral prescription and 76.7% (n=112) of those prescribed antidepressants reported 90%-plus adherence to their antidepressant prescription, while 67% of those prescribed both (n=113) reported more than 90% adherence to both regimens. SUR results indicated that education, age, and HIV symptom severity were significant correlates of antiretroviral medication adherence while gender and generalized anxiety disorder diagnosis were significant correlates of adherence to antidepressant medications. In addition, antiretroviral adherence did not predict antidepressant adherence (ß=1.62, p=0.17), however, antidepressant adherence did predict antiretroviral adherence (ß=2.30, p<0.05).


Assuntos
Fármacos Anti-HIV/administração & dosagem , Antidepressivos/administração & dosagem , Depressão/tratamento farmacológico , Soropositividade para HIV/tratamento farmacológico , Adesão à Medicação/estatística & dados numéricos , Algoritmos , Depressão/epidemiologia , Depressão/etiologia , Feminino , Soropositividade para HIV/complicações , Soropositividade para HIV/epidemiologia , Humanos , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Estados Unidos/epidemiologia , Carga Viral
11.
Violence Vict ; 27(1): 109-24, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-22455188

RESUMO

Substance use and physical violence often coincide, but little has been published on the correlates associated with receipt of partner versus nonpartner physical violence for rural users of methamphetamine and/or cocaine. In this study, participants' substance use, depression and past-year physical victimization were assessed. In separate logistic regression models, received partner violence in females was associated with age; alcohol, cocaine, and methamphetamine abuse/dependence; and number of drugs used in the past 6 months. In males, received nonpartner violence was associated with age, cocaine abuse/dependence, and being Caucasian. Findings suggest a relationship between stimulant use and received violence among rural substance users and a need for victimization screenings in settings where such individuals seek health care.


Assuntos
Consumo de Bebidas Alcoólicas/epidemiologia , Transtornos Relacionados ao Uso de Anfetaminas/epidemiologia , Transtornos Relacionados ao Uso de Cocaína/epidemiologia , Vítimas de Crime/estatística & dados numéricos , Metanfetamina , População Rural/estatística & dados numéricos , Maus-Tratos Conjugais/estatística & dados numéricos , Adulto , Arkansas/epidemiologia , Etnicidade/estatística & dados numéricos , Feminino , Humanos , Relações Interpessoais , Kentucky/epidemiologia , Masculino , Fumar Maconha/epidemiologia , Pessoa de Meia-Idade , Análise Multivariada , Ohio/epidemiologia , Adulto Jovem
12.
Addiction ; 107(1): 131-41, 2012 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-21707811

RESUMO

AIMS: Whether the selective serotonin re-uptake inhibitor sertraline at 200 mg/day delays relapse in recently abstinent cocaine-dependent individuals. DESIGN: The study involved a 12-week, double-blind, placebo-controlled clinical trial with 2-week residential stay followed by 10-week out-patient participation. SETTING: Veterans Affairs residential unit and out-patient treatment research program. PARTICIPANTS: Cocaine-dependent volunteers (n = 86) with depressive symptoms (Hamilton score > 15), but otherwise no major psychiatric or medical disorder or contraindication to sertraline. MEASUREMENTS: Participants were housed on a drug-free residential unit (weeks 1-2) and randomized to receive sertraline or placebo. Participants then participated on an out-patient basis during weeks 3-12 while continuing to receive study medication. Patients participated in a day substance abuse/day treatment program during weeks 1-3 and underwent weekly cognitive behavioral therapy during weeks 4-12. The primary outcome measure was thrice-weekly urine results and the secondary measure was Hamilton Depression scores. FINDINGS: Pre-hoc analyses were performed on those who participated beyond week 2. Generally, no group differences in retention or baseline characteristics occurred. Sertraline patients showed a trend towards longer time before their first cocaine-positive urine ('lapse', χ(2) = 3.67, P = 0.056), went significantly longer before having two consecutive urine samples positive for cocaine ('relapse', χ(2) = 4.03, P = 0.04) and showed significantly more days to lapse (26.1 ± 16.7 versus 13.2 ± 10.5; Z = 2.89, P = 0.004) and relapse (21.3 ± 10.8 versus 32.3 ± 14.9; Z = 2.25, P = 0.02). Depression scores decreased over time (F = 43.43, P < 0.0001), but did not differ between groups (F = 0.09, P = 0.77). CONCLUSIONS: Sertraline delays time to relapse relative to placebo in cocaine-dependent patients who initially achieve at least 2 weeks of abstinence.


Assuntos
Transtornos Relacionados ao Uso de Cocaína/tratamento farmacológico , Depressão/tratamento farmacológico , Inibidores Seletivos de Recaptação de Serotonina/uso terapêutico , Sertralina/uso terapêutico , Adolescente , Adulto , Assistência Ambulatorial , Transtornos Relacionados ao Uso de Cocaína/complicações , Transtornos Relacionados ao Uso de Cocaína/urina , Terapia Cognitivo-Comportamental , Depressão/complicações , Método Duplo-Cego , Feminino , Humanos , Estimativa de Kaplan-Meier , Masculino , Pessoa de Meia-Idade , Placebos , Escalas de Graduação Psiquiátrica , Prevenção Secundária , Inibidores Seletivos de Recaptação de Serotonina/administração & dosagem , Inibidores Seletivos de Recaptação de Serotonina/farmacologia , Sertralina/administração & dosagem , Sertralina/farmacologia , Índice de Gravidade de Doença , Fatores de Tempo , Adulto Jovem
13.
Med Care ; 49(9): 872-80, 2011 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-21623240

RESUMO

BACKGROUND: Patients with depression use more health services than patients without depression. However, when depression symptoms respond to treatment, use of health services declines. Most depression quality improvement studies increase total cost in the short run, which if unevenly distributed across stakeholders, could compromise buy-in and sustainability. The objective of this budget impact analysis was to examine patterns of utilization and cost associated with telemedicine-based collaborative care, an intervention that targets patients treated in small rural primary care clinics. METHODS: Patients with depression were recruited from VA Community-based Outpatient Clinics, and 395 patients were enrolled and randomized to telemedicine-based collaborative care or usual care. Dependent variables representing utilization and cost were collected from administrative data. Independent variables representing clinical casemix were collected from self-report at baseline. RESULTS: There were no significant group differences in the total number or cost of primary care encounters. However, as intended, patients in the intervention group had significantly greater depression-related primary care encounters (marginal effect=0.34, P=0.004) and cost (marginal effect=$61.4, P=0.013) to adjust antidepressant therapy for nonresponders. There were no significant group differences in total mental health encounters or cost. However, as intended, the intervention group had significantly higher depression-related mental health costs (marginal effect=$107.55, P=0.03) due to referrals of treatment-resistant patients. Unexpectedly, patients in the intervention group had significantly greater specialty physical health encounters (marginal effect =0.42, P=0.001) and cost (marginal effect =$490.6, P=0.003), but not depression-related encounters or cost. Overall, intervention patients had a significantly greater total outpatient cost compared with usual care (marginal effect=$599.28, P=0.012). CONCLUSIONS: Results suggest that telemedicine-based collaborative care does not increase total workload for primary care or mental health providers. Thus, there is no disincentive for mental health providers to offer telemedicine-based collaborative care or for primary care providers to refer patients to telemedicine-based collaborative care.


Assuntos
Prestação Integrada de Cuidados de Saúde/economia , Transtorno Depressivo/economia , Custos de Cuidados de Saúde , Telemedicina/economia , Comorbidade , Análise Custo-Benefício , Prestação Integrada de Cuidados de Saúde/métodos , Transtorno Depressivo/epidemiologia , Transtorno Depressivo/terapia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Modelos Econométricos , Atenção Primária à Saúde/economia , Atenção Primária à Saúde/estatística & dados numéricos , Serviços de Saúde Rural/economia , Serviços de Saúde Rural/estatística & dados numéricos , Estados Unidos/epidemiologia , Veteranos/estatística & dados numéricos
14.
Arch Intern Med ; 171(1): 23-31, 2011 Jan 10.
Artigo em Inglês | MEDLINE | ID: mdl-21220657

RESUMO

BACKGROUND: Depression is common among persons with the human immunodeficiency virus (HIV) and is associated with unfavorable outcomes. METHODS: A single-blind randomized controlled effectiveness trial at 3 Veterans Affairs HIV clinics (HIV Translating Initiatives for Depression Into Effective Solutions [HITIDES]). The HITIDES intervention consisted of an off-site HIV depression care team (a registered nurse depression care manager, pharmacist, and psychiatrist) that delivered up to 12 months of collaborative care backed by a Web-based decision support system. Participants who completed the baseline telephone interview were 249 HIV-infected patients with depression, of whom 123 were randomized to the intervention and 126 to usual care. Participant interview data were collected at baseline and at the 6- and 12-month follow-up visits. The primary outcome was depression severity measured using the 20-item Hopkins Symptom Checklist (SCL-20) and reported as treatment response (≥50% decrease in SCL-20 item score), remission (mean SCL-20 item score, <0.5), and depression-free days. Secondary outcomes were health-related quality of life, health status, HIV symptom severity, and antidepressant or HIV medication regimen adherence. RESULTS: Intervention participants were more likely to report treatment response (33.3% vs 17.5%) (odds ratio, 2.50; 95% confidence interval [CI], 1.37-4.56) and remission (22.0% vs 11.9%) (2.25; 1.11-4.54) at 6 months but not 12 months. Intervention participants reported more depression-free days during the 12 months (ß = 19.3; 95% CI, 10.9-27.6; P < .001). Significant intervention effects were observed for lowering HIV symptom severity at 6 months (ß = -2.6; 95% CI, -3.5 to -1.8; P < .001) and 12 months (ß = -0.82; -1.6 to -0.07; P = .03). Intervention effects were not significant for other secondary outcomes. CONCLUSION: The HITIDES intervention improved depression and HIV symptom outcomes and may serve as a model for collaborative care interventions in HIV and other specialty physical health care settings where patients find their "medical home." TRIAL REGISTRATION: clinicaltrials.gov Identifier: NCT00304915.


Assuntos
Fármacos Anti-HIV/administração & dosagem , Antidepressivos/administração & dosagem , Depressão/etiologia , Infecções por HIV/psicologia , Equipe de Assistência ao Paciente , Atenção Primária à Saúde , Adulto , Comportamento Cooperativo , Depressão/tratamento farmacológico , Depressão/enfermagem , Feminino , Seguimentos , Infecções por HIV/tratamento farmacológico , Infecções por HIV/enfermagem , Nível de Saúde , Humanos , Masculino , Adesão à Medicação , Pessoa de Meia-Idade , Enfermeiros Administradores , Razão de Chances , Farmacêuticos , Atenção Primária à Saúde/métodos , Atenção Primária à Saúde/organização & administração , Psiquiatria , Qualidade de Vida , Índice de Gravidade de Doença , Fatores de Tempo , Resultado do Tratamento
15.
Addiction ; 106(3): 507-15, 2011 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-21205046

RESUMO

AIM: To examine the construct validity of generic preference-weighted health-related quality of life measures in a sample of patients with a substance use disorder (SUD). DESIGN: Longitudinal (baseline and 6-month follow-up) data from a research study that evaluated interventions to improve linkage and engagement with SUD treatment. SETTING: A central intake unit that referred patients to seven SUD treatment centers in a Midwestern US metropolitan area. PARTICIPANTS: A total of 495 individuals with a SUD. MEASUREMENTS: Participants completed two preference-weighted measures: the self-administered Quality of Well-Being scale (QWB-SA) and the standard gamble weighted Medical Outcomes Study SF-12 (SF-6D). They were also administered two clinical assessments: all seven domains of the Addiction Severity Index (ASI) and a symptom checklist based on the DSM-IV. Construct validity was determined via the relationships between disease-specific SUD and generic measures. FINDINGS: In unadjusted analyses, the QWB-SA and SF-6D change scores were correlated significantly with six ASI subscale change scores, but not with employment status. In adjusted repeated-measures analyses, three of seven ASI subscale scores were significant predictors of QWB-SA and 5/7 ASI subscale scores were significant predictors of SF-6D. Abstinence and problematic use at follow-up were significant predictors of QWB-SA and SF-6D. Effect sizes ranged from 0.352 to 0.400 for abstinence and -0.484 to -0.585 for problematic use. CONCLUSIONS: Generic preference-weighted health-related quality of life measures show moderate to good associations with substance-use specific measures and in certain circumstances can be used in their stead. This study provides further support for the use of the Quality of Well-Being scale and Medical Outcomes Study SF-12 in clinical and economic evaluations of substance use disorder interventions.


Assuntos
Nível de Saúde , Avaliação de Resultados em Cuidados de Saúde/métodos , Qualidade de Vida , Transtornos Relacionados ao Uso de Substâncias/psicologia , Inquéritos e Questionários/normas , Adolescente , Adulto , Análise Custo-Benefício , Interpretação Estatística de Dados , Manual Diagnóstico e Estatístico de Transtornos Mentais , Feminino , Humanos , Estudos Longitudinais , Masculino , Aceitação pelo Paciente de Cuidados de Saúde , Anos de Vida Ajustados por Qualidade de Vida , Índice de Gravidade de Doença , Centros de Tratamento de Abuso de Substâncias/economia , Transtornos Relacionados ao Uso de Substâncias/economia , Transtornos Relacionados ao Uso de Substâncias/terapia , Estados Unidos
16.
J Behav Health Serv Res ; 38(2): 221-33, 2011 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-20700660

RESUMO

Chest pain is the most common medical complaint among cocaine-using emergency department (ED) patients. Correlates of substance abuse treatment seeking were examined using 3-month post-discharge surveys from 170 ED patients admitted with cocaine-related chest pain. Four treatment categories were specified as the dependent variable in an ordered logistic regression: no treatment (74.7%), informal treatment only (7.1%), formal treatment only (5.9%), and both formal and informal treatment (12.4%). The following variables were found to be positively associated with a higher treatment category: frequency of cocaine use (OR = 1.07, CI(95) = 1.01-1.15, p = 0.03), global severity index (OR = 2.26, CI(95) = 1.04-4.90, p = 0.04), number of endorsed stigma barriers (OR = 4.40, CI(95) = 1.41-13.78, p = 0.01), interpersonal consequences (OR = 1.41, CI(95) = 1.01-1.88, p = 0.02), and pre-baseline informal treatment (OR = 6.69, CI(95) = 1.58-28.36, p = 0.01). Physical consequences were found to be negatively associated with a higher treatment category (OR = 0.63, CI(95) = 0.47-0.85, p < 0.01). ED visits for cocaine-related chest pain represent missed opportunities to link patients to substance abuse treatment, and interventions are needed to motivate patients to seek care.


Assuntos
Dor no Peito/etiologia , Transtornos Relacionados ao Uso de Cocaína/complicações , Serviço Hospitalar de Emergência/estatística & dados numéricos , Avaliação de Processos e Resultados em Cuidados de Saúde , Adulto , Atitude Frente a Saúde , Dor no Peito/terapia , Transtornos Relacionados ao Uso de Cocaína/terapia , Feminino , Seguimentos , Hospitais Universitários , Humanos , Modelos Logísticos , Masculino , Michigan , Pessoa de Meia-Idade , Fatores Socioeconômicos , Centros de Traumatologia
17.
Subst Use Misuse ; 46(6): 716-27, 2011.
Artigo em Inglês | MEDLINE | ID: mdl-21047150

RESUMO

The association between stimulant use and legal outcomes was examined in rural adults aged 18-21 years (n = 98) in the Mississippi River Delta of Arkansas from 2003 through 2008. Participants were interviewed at baseline and every 6 months for 2 years, using the Substance Abuse Outcomes Module, Addiction Severity Index, Short-Form 8 Health Survey, Brief Symptom Inventory, Patient Health Questionnaire depression screen, and an abbreviated antisocial personality disorder measure. More than three quarters were arrested before baseline; 47 were arrested over the next 2 years. Early arrest but not substance use was related to subsequent arrest. Limitations and implications for interventions are discussed.


Assuntos
Transtornos Relacionados ao Uso de Anfetaminas/psicologia , Negro ou Afro-Americano/psicologia , Transtornos Relacionados ao Uso de Cocaína/psicologia , Psicologia Criminal , Criminosos/psicologia , População Rural/estatística & dados numéricos , Adolescente , Transtorno da Personalidade Antissocial/complicações , Transtorno da Personalidade Antissocial/diagnóstico , Criminosos/estatística & dados numéricos , Feminino , Humanos , Masculino , Escalas de Graduação Psiquiátrica , Fatores de Risco , Adulto Jovem
18.
Arch Gen Psychiatry ; 67(8): 812-21, 2010 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-20679589

RESUMO

CONTEXT: Collaborative care interventions for depression in primary care settings are clinically beneficial and cost-effective. Most prior studies were conducted in urban settings. OBJECTIVE: To examine the cost-effectiveness of a rural telemedicine-based collaborative care depression intervention. DESIGN: Randomized controlled trial of intervention vs usual care. SETTING: Seven small (serving 1000 to 5000 veterans) Veterans Health Administration community-based outpatient clinics serving rural catchment areas in 3 mid-South states. Each site had interactive televideo dedicated to mental health but no psychiatrist or psychologist on site. Patients Among 18 306 primary care patients who were screened, 1260 (6.9%) screened positive for depression; 395 met eligibility criteria and were enrolled from April 2003 to September 2004. Of those enrolled, 360 (91.1%) completed a 6-month follow-up and 335 (84.8%) completed a 12-month follow-up. Intervention A stepped-care model for depression treatment was used by an off-site depression care team to make treatment recommendations via electronic medical record. The team included a nurse depression care manager, clinical pharmacist, and psychiatrist. The depression care manager communicated with patients via telephone and was supported by computerized decision support software. MAIN OUTCOME MEASURES: The base case cost analysis included outpatient, pharmacy, and intervention expenditures. The effectiveness outcomes were depression-free days and quality-adjusted life years (QALYs) calculated using the 12-Item Short Form Health Survey standard gamble conversion formula. RESULTS: The incremental depression-free days outcome was not significant (P = .10); therefore, further cost-effectiveness analyses were not done. The incremental QALY outcome was significant (P = .04) and the mean base case incremental cost-effectiveness ratio was $85 634/QALY. Results adding inpatient costs were $111 999/QALY to $132 175/QALY. CONCLUSIONS: In rural settings, a telemedicine-based collaborative care intervention for depression is effective and expensive. The mean base case result was $85 634/QALY, which is greater than cost per QALY ratios reported for other, mostly urban, depression collaborative care interventions.


Assuntos
Análise Custo-Benefício/estatística & dados numéricos , Transtorno Depressivo/terapia , Serviços de Saúde Rural/economia , Telemedicina/economia , Área Programática de Saúde , Comportamento Cooperativo , Transtorno Depressivo/tratamento farmacológico , Transtorno Depressivo/economia , Feminino , Custos de Cuidados de Saúde/estatística & dados numéricos , Humanos , Masculino , Pessoa de Meia-Idade , Equipe de Assistência ao Paciente/economia , Atenção Primária à Saúde/economia , Atenção Primária à Saúde/métodos , Anos de Vida Ajustados por Qualidade de Vida , Serviços de Saúde Rural/estatística & dados numéricos , Telemedicina/métodos , Resultado do Tratamento , Estados Unidos , United States Department of Veterans Affairs/estatística & dados numéricos
19.
Health Serv Res ; 44(4): 1406-23, 2009 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-19453391

RESUMO

OBJECTIVE: To compare depression health state preference scores across four groups: (1) general population, (2) previous history of depression but not currently depressed, (3) less severe current depression, and (4) more severe current depression. DATA SOURCES: Primary data were collected from 95 general population, 163 primary care, and 83 specialty mental health subjects. STUDY DESIGN: Stratified sampling frames were used to recruit general population and patient subjects. Subjects completed cross-sectional surveys. Key variables included rating scale and standard gamble scores assigned to depression health state descriptions developed from the Patient Health Questionnaire-9 (PHQ-9) and SF-12. DATA COLLECTION/EXTRACTION METHODS: Each subject completed an in-person interview. Forty-nine subjects completed test/retest reliability interviews. PRINCIPAL FINDINGS: Depressed patient preference scores for three of six SF-12 depression health states were significantly lower than the general population using the rating scale and two of six were significantly lower using standard gamble. Depressed patient scores for five of six PHQ-9 depression health states were significantly lower than the general population using the rating scale and two of six were significantly lower using standard gamble. CONCLUSIONS: Depressed patients report lower preference scores for depression health states than the general population. In effect, they perceived depression to be worse than the general public perceived it to be. Additional research is needed to examine the implications for cost-effectiveness ratios using general population preference scores versus depressed patient preference scores.


Assuntos
Depressão/epidemiologia , Satisfação do Paciente/estatística & dados numéricos , Adolescente , Adulto , Idoso , Arkansas/epidemiologia , Estudos Transversais , Depressão/classificação , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Valores de Referência , Distribuição por Sexo , Adulto Jovem
20.
Drug Alcohol Depend ; 99(1-3): 79-88, 2009 Jan 01.
Artigo em Inglês | MEDLINE | ID: mdl-18722724

RESUMO

This study examined 1-year violence outcomes among non-injured patients treated in the Emergency Department (ED) for cocaine-related chest pain. An urban Level I ED required patients with chest pain (age 60 and younger) provide a urine sample for cocaine testing. Cocaine-positive consenting patients (n=219) were interviewed in the ED; 80% completed follow-up interviews over 12-months (n=174; 59% male, 79% African-American, mean age=38.8, standard deviation 9.06; range=19-60). Baseline rates of past year violent victimization and perpetration history were: 38% and 30%, respectively. During the 12-month follow-up, rates of victimization and perpetration outcomes were 35% and 30%, respectively. Predictors of violence outcomes (either victimization or perpetration) in the year post-ED visit based on characteristics were measured at baseline or during the follow-up period (i.e., gender, age, psychological distress, binge drinking days, cocaine use days, marijuana use days, substance abuse/dependence diagnosis, victimization/perpetration history). Victimization during the follow-up was related to younger age, more frequent binge drinking and marijuana use at baseline, and victimization history, and to substance abuse/dependence, more frequent binge drinking, and psychiatric distress at follow-up. Specifically, participants who reported victimization at baseline were approximately 3 times more likely to report victimization at 12-month follow-up. Perpetration during the follow-up was related to younger age and more frequent binge drinking at baseline, and to substance abuse/dependence, more frequent binge drinking, and psychiatric distress at follow-up. Overall, no significant gender differences were observed in violence; however, women were more likely than men to report injury during the most severe partner violence incident. Violence is a common problem among patients presenting to an inner-city ED for cocaine-related chest pain, with younger age and frequency of binge drinking being a consistent marker of continued violence involvement. Intervention approaches to link these not-in-treatment cocaine users to services and reduce cocaine use must take into account concomitant alcohol misuse and violence.


Assuntos
Dor no Peito/etiologia , Dor no Peito/terapia , Transtornos Relacionados ao Uso de Cocaína/complicações , Transtornos Relacionados ao Uso de Cocaína/psicologia , Cocaína/efeitos adversos , Violência/psicologia , Adolescente , Adulto , Negro ou Afro-Americano , Fatores Etários , Alcoolismo/complicações , Alcoolismo/epidemiologia , Dor no Peito/epidemiologia , Transtornos Relacionados ao Uso de Cocaína/epidemiologia , Vítimas de Crime , Serviços Médicos de Emergência , Serviço Hospitalar de Emergência , Feminino , Seguimentos , Humanos , Modelos Logísticos , Masculino , Abuso de Maconha/complicações , Abuso de Maconha/epidemiologia , Pessoa de Meia-Idade , Fatores de Risco , Fatores Socioeconômicos , Inquéritos e Questionários , Resultado do Tratamento , Violência/estatística & dados numéricos , Adulto Jovem
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