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1.
Int J Neuropsychopharmacol ; 20(8): 619-623, 2017 08 01.
Artículo en Inglés | MEDLINE | ID: mdl-28520926

RESUMEN

Background: Major depressive disorder is a debilitating illness, which is most commonly treated with antidepressant drugs. As the majority of patients do not respond on their first trial, there is great interest in identifying biological factors that indicate the most appropriate treatment for each patient. Studies suggest that microRNA represent excellent biomarkers to predict antidepressant response. Methods: We investigated the expression of miR-1202, miR-135a, and miR-16 in peripheral blood from 2 cohorts of depressed patients who received 8 weeks of antidepressant therapy. Expression was quantified at baseline and after treatment, and its relationship to treatment response and depressive symptoms was assessed. Results: In both cohorts, responders displayed lower baseline miR-1202 levels compared with nonresponders, which increased following treatment. Conclusions: Ultimately, our results support the involvement of microRNA in antidepressant response and suggest that quantification of their levels in peripheral samples represents a valid approach to informing treatment decisions.


Asunto(s)
Antidepresivos/uso terapéutico , Trastorno Depresivo Mayor/sangre , Trastorno Depresivo Mayor/tratamiento farmacológico , MicroARNs/sangre , Biomarcadores/sangre , Citalopram/uso terapéutico , Toma de Decisiones Clínicas , Trastorno Depresivo Resistente al Tratamiento/sangre , Trastorno Depresivo Resistente al Tratamiento/tratamiento farmacológico , Succinato de Desvenlafaxina/uso terapéutico , Clorhidrato de Duloxetina/uso terapéutico , Humanos , Escalas de Valoración Psiquiátrica , Curva ROC , Resultado del Tratamiento
2.
Can J Psychiatry ; 60(6): 268-75, 2015 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-26175324

RESUMEN

OBJECTIVE: The Inuit population in Canada's North has suffered from high rates of death by suicide. We report on the first large-scale, controlled, epidemiologically representative study of deaths by suicide in an Indigenous population, which investigates risk factors for suicide among all Inuit across Nunavut who died by suicide during a 4-year period. METHODS: We identified all suicides by Inuit (n = 120) that occurred between January 1, 2003, and December 31, 2006, in Nunavut. For each subject, we selected a community-matched control subject. We used proxy-based procedures and conducted structured interviews with informants to obtain life histories, Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, Axis I and II diagnoses, and measures of impulsive and (or) aggressive traits. RESULTS: Compared with control subjects, subjects who died by suicide were more likely to have experienced childhood abuse (OR 2.38; 95% CI 1.39 to 4.08), have family histories of major depressive disorder (P = 0.002) and suicide completion (P = 0.02), and have been affected by major depressive disorder (OR 13.00; 95% CI 6.20 to 27.25), alcohol dependence (OR 2.90; 95% CI 1.59 to 5.24), or cannabis dependence (OR 3.96; 95% CI 2.29 to 6.8) in the last 6 months. In addition, subjects who died by suicide were more likely to have been affected with cluster B personality disorders (OR 10.18; 95% CI 3.34 to 30.80) and had higher scores of impulsive and aggressive traits (P < 0.001). CONCLUSIONS: At the individual level, clinical risk factors for suicide among Inuit are similar to those observed in studies with the general population, and indicate a need for improved access to mental health services. The high rate of mental health problems among control subjects suggests the need for population-level mental health promotion.


Asunto(s)
Adultos Sobrevivientes de Eventos Adversos Infantiles/estadística & datos numéricos , Trastorno Depresivo Mayor/etnología , Inuk/etnología , Trastornos de la Personalidad/etnología , Trastornos Relacionados con Sustancias/etnología , Suicidio/etnología , Adulto , Femenino , Humanos , Masculino , Territorios del Noroeste/etnología , Factores de Riesgo , Adulto Joven
4.
Pain Med ; 13(11): 1425-35, 2012 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-23036076

RESUMEN

OBJECTIVE: Catastrophizing is a maladaptive response to pain and is one of the factors that contribute to the chronicity of some pain syndromes. The Pain Catastrophizing Scale (PCS) assists both treatment planning and outcome assessment. Its use is limited in Portuguese-speaking countries because of the lack of a validated translated version. We conducted the validation of the Brazilian Portuguese (BP)-PCS and explored its psychometric properties. This study reports the internal consistency, factor structure, and its capability to discriminate pain reported by patients with specific chronic pain conditions. METHODS: Three hundred eighty-four patients, 317 women (82.55%), aged 18-79 years with chronic nonmalignant pain attending an outpatient multidisciplinary pain center participated in this cross-sectional study. The instruments were the BP-PCS, pain intensity, pain interference in functional capacity, and a sociodemographic questionnaire. One subsample with chronic tensional headache (CTH) according to the criteria of the International Headache Society (N = 19), and another with a diagnosis of fibromyalgia according to the American College of Rheumatology criteria (N = 50) were selected to assess the discriminative properties of BP-PCS. RESULTS: We observed good internal consistency (Cronbach's α values of 0.91 for the total BP-PCS, and 0.93 [helplessness], 0.88 [magnification], and 0.86 [rumination] for the respective subdomains). The item-total correlation coefficients ranged from 0.91 to 0.94. Confirmatory factor analysis (CFA) supported the three factors structure, with the comparative fit index = 0.98, root mean square error of approximation = 0.09, and normed fit index = 0.98. Significant correlations were found for pain intensity, pain interference, and patient's mood (correlation coefficients ranged from 0.48 to 0.66, P < 0.01). No significant gender difference was observed for BP-PCS scores. When comparing scores of BP-PCS scale and subscales between the selected control group (patients with pain scores on visual analog scale equal or lower than 40 mm in the most part of the day in the last 6 months) and patients with fibromyalgia or CTH, we observed lower scores for the former group. CONCLUSION: Our findings support the validity and reliability of the BP-PCS. The scale showed satisfactory psychometric properties. CFA provides support for the three-factor structure reported in previous studies. This factor structure presented good discriminative properties to identify catastrophizers who present with mild chronic pain, fibromyalgia, and CTH. The BP-PCS is a valuable tool for use in scientific studies and in the clinical setting in patients with chronic pain in Brazilian Portuguese-speaking countries.


Asunto(s)
Catastrofización/diagnóstico , Dimensión del Dolor/métodos , Dolor/psicología , Psicometría/métodos , Adolescente , Adulto , Anciano , Brasil , Catastrofización/psicología , Estudios Transversales , Femenino , Humanos , Masculino , Persona de Mediana Edad , Dolor/diagnóstico , Adulto Joven
5.
Int J Psychol ; 47(4): 279-86, 2012.
Artículo en Inglés | MEDLINE | ID: mdl-22124478

RESUMEN

There is evidence that subjective health is an important variable in general health outcomes. It can be an indicator of the individual's overall health status, creating a reliable and valid estimate about health. Quality of life (QoL) assessment can be associated with the individuals' subjective assessment of their own health status. The aim of the present study was to investigate variables associated with subjective perception of health in older inpatients. Ninety elderly inpatients over 60 years old were interviewed. The perception of health assessment (healthy/unhealthy) allocated elders in either of two groups. All the elders answered sociodemographic questions, the WHOQOL-100 and the Beck Depression Inventory (BDI). Comparing the group that considered themselves unhealthy to the other group, the former showed a tendency of worse QoL assessments in five out of six domains investigated. Significant differences were found for the physical and level of independence domains, as well as overall QoL. There was a significant association between health perception and lower intensity of depressive symptoms, as well as better QoL perception in the level of independence domain. This study shows the existence of an association between depressive symptoms and health assessment. It also suggests that the independence dimension is important in the elders' perception of their health status. These findings can help identify cause-effect relations between variables in aging studies involving health indicators and bring new intervention proposals for the elderly.


Asunto(s)
Envejecimiento/psicología , Actitud Frente a la Salud , Calidad de Vida/psicología , Actividades Cotidianas/psicología , Anciano , Anciano de 80 o más Años , Brasil , Comparación Transcultural , Depresión/diagnóstico , Depresión/psicología , Escolaridad , Femenino , Indicadores de Salud , Hospitales Universitarios , Humanos , Masculino , Morbilidad , Inventario de Personalidad/estadística & datos numéricos , Psicometría , Clase Social , Estadística como Asunto
6.
Transcult Psychiatry ; 59(3): 312-336, 2022 06.
Artículo en Inglés | MEDLINE | ID: mdl-34989262

RESUMEN

Climate change is disproportionally impacting the Circumpolar North, with particular impacts among Indigenous populations. Environmental changes are felt in many aspects of daily life of Northern communities, including both physical and mental health. Thus, health institutions from around the Arctic must meet emerging needs, while the phenomenon remains marginal to their southern counterparts. In this systematic review, we aimed to review current scientific knowledge on the mental health impacts of climate change in Indigenous Peoples across the Circumpolar North. Seven databases were searched. Original peer-reviewed research articles were included if they addressed links between climate change and mental health in Arctic or Subarctic Indigenous Populations. After extraction, data were synthesized using thematic analysis. Of the 26 articles that met inclusion criteria, 16 focused on Canadian Inuit communities and 21 were exclusively qualitative. Being on the land was identified as a central determinant of wellbeing. Immediate impacts of climate change on mental health were felt through restricted mobility and disrupted livelihoods. Effects on mental health were further felt through changes in culture and identity, food insecurity, interpersonal stress and conflicts, and housing problems. Various ways in how communities and individuals are coping with these effects were reported. Understanding climate-related pathways of mental health risks in the Arctic is crucial to better identify vulnerable groups and to foster resilience. Clinicians can play a role in recognizing and providing support for patients affected by these disruptions. Policies sensitive to the climate-mental health relationship must be advocated for.


Asunto(s)
Cambio Climático , Salud Mental , Regiones Árticas , Canadá , Humanos
7.
Psychooncology ; 20(2): 155-64, 2011 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-20878828

RESUMEN

OBJECTIVE: The purpose of this study was to determine the psychosocial adjustment congruence within couples through the first year of prostate cancer experience, and to explore the personal variables that could predict congruence within couples. METHOD: Eighty-one couples were interviewed at the time of diagnosis; 69 participated at 3 months and 61 at 12 months. Paired t-tests were used to examine dyadic congruence on seven domains of psychosocial adjustment. Repeated Measures ANOVAs were used to examine the congruence over time. Multiple regressions were used to determine whether mood disturbance, urinary and sexual bother, sense of coherence, and social support were predictors of congruence within couples on each of the adjustment domains. RESULTS: At time 1, couples had incongruent perceptions in 3 of 7 domains: health care, psychological, and social adjustment. Three months later, health care, psychological, and sexual domains showed incongruence within couples. One year after the diagnosis, there were incongruent perceptions only in sexual and psychological domains. There was little variation of the congruence within couples over time. Husbands and wives' mood disturbance, urinary and sexual bother, sense of coherence, and social support accounted for 25-63% of variance in couple congruence in the adjustment domains in the study periods. CONCLUSION: The findings suggested that there is couple congruence. Domains in which incongruence was observed are important targets for clinical interventions. Greater attention needs to be directed to assisting couples to recognize the differences between their perceptions, especially the ones related to the sexual symptoms and psychological distress.


Asunto(s)
Adaptación Psicológica , Neoplasias de la Próstata/psicología , Esposos/psicología , Estrés Psicológico/psicología , Adulto , Anciano , Anciano de 80 o más Años , Canadá , Composición Familiar , Femenino , Humanos , Masculino , Persona de Mediana Edad , Modelos Psicológicos , Neoplasias de la Próstata/complicaciones , Neoplasias de la Próstata/diagnóstico , Escalas de Valoración Psiquiátrica , Calidad de Vida , Factores Sexuales , Ajuste Social , Apoyo Social , Factores Socioeconómicos , Encuestas y Cuestionarios , Factores de Tiempo
8.
BMC Womens Health ; 11: 21, 2011 May 31.
Artículo en Inglés | MEDLINE | ID: mdl-21627812

RESUMEN

BACKGROUND: With the development of medical technology, many countries around the world have been implementing ethical guidelines and laws regarding Medically Assisted Reproduction (MAR). A physician's reproductive decisions are not solely based on technical criteria but are also influenced by society values. Therefore, the aim of this study was to analyze the factors prioritized by MAR professionals when deciding on whether to accept to perform assisted reproduction and to show any existing cultural differences. METHODS: Cross-sectional study involving 224 healthcare professionals working with assisted reproduction in Brazil, Italy, Germany and Greece. Instrument used for data collection: a questionnaire, followed by the description of four special MAR cases (a single woman, a lesbian couple, an HIV discordant couple and gender selection) which included case-specific questions regarding the professionals' decision on whether to perform the requested procedure as well as the following factors: socio-demographic variables, moral and legal values as well as the technical aspects which influence decision-making. RESULTS: Only the case involving a single woman who wishes to have a child (without the intention of having a partner in the future) demonstrated significant differences. Therefore, the study was driven towards the results of this case specifically. The analyses we performed demonstrated that professionals holding a Master's Degree, those younger in age, female professionals, those having worked for less time in reproduction, those in private clinics and Brazilian health professionals all had a greater tendency to perform the procedure in that case. A multivariate analysis demonstrated that the reasons for the professional's decision to perform the procedure were the woman's right to gestate and the duty of MAR professionals to help her. The professionals who decided not to perform the procedure identified the woman's marital status and the child's right to a father as the reason to withhold treatment. CONCLUSION: The study indicates differences among countries in the evaluation of the single woman case. It also discloses the undervaluation of bioethics committees and the need for a greater participation of healthcare professionals in debates on assisted reproduction laws.


Asunto(s)
Actitud del Personal de Salud , Toma de Decisiones/ética , Médicos/ética , Técnicas Reproductivas Asistidas/ética , Adulto , Biología/ética , Brasil , Comparación Transcultural , Estudios Transversales , Femenino , Alemania , Grecia , Seronegatividad para VIH , Seropositividad para VIH , Homosexualidad Femenina , Humanos , Italia , Masculino , Persona de Mediana Edad , Preselección del Sexo , Persona Soltera
9.
Reprod Health ; 7: 3, 2010 May 09.
Artículo en Inglés | MEDLINE | ID: mdl-20459694

RESUMEN

BACKGROUND: Infertility is associated with impairment in human life. The quality of life (QOL) construct allows measuring the impact of health conditions in a broader way. The study aimed to explore the impact of the psychological distress on QOL's dimensions in men experiencing infertility. METHODS: 162 men were completed a socio-demographic form, SF-36, WHOQOL-BREF, Beck Anxiety Inventory and Beck Depression Inventory. Hierarchical regressions included demographic and clinic variables, and subsequently depression and anxiety were added. RESULTS AND DISCUSSION: Model 1 was not accurate in predicting QOL. R2 values ranged from 0.029 (Social Functioning) to 0.149 (Mental Health). Eight domains were not associated with any of the predictors. In the second model, a R2increase was observed in all domains. R2 of QOL scores ranged from .209 (Role Physical) to .406 (Social Functioning). The intensity of the depression was a significant predictor for all outcomes. The load of depression was higher than the ones of the socio-demographic and clinical variables. Anxiety levels have also presented the same effect, but with less intensity. CONCLUSION: Subthreshold depression and anxiety were major predictors of QOL in men experiencing infertility. Health professionals need to include assessment of psychological symptomatology to plan more efficient interventions to infertile patients.

10.
Psychol Health Med ; 15(5): 596-606, 2010 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-20835969

RESUMEN

Depressive symptoms are the most prevalent mental health condition in older adults. Since it cannot be measured directly, the use of instruments is mandatory. The 15-item Geriatric Depression Scale (GDS) is one of the most widely used scales to measure depression in the elderly. It is recognized that the cultural context is a major determinant of the instrument's psychometric performance. Up to the present, this scale has mainly been investigated through classical psychometric approaches. The present study aims to explore whether the 15-item GDS is a suitable instrument in a Brazilian sample. In addition, it explores the potential improvement in the psychometric performance by item refinement. Four hundred twenty-four elderly adults selected through convenience sampling completed the 15-item GDS. Data were analyzed by the Rasch Measurement Model. The Rasch analysis is a powerful modern approach to explore psychometric performance of instruments in health sciences. It examines both the scale and the individual item performance in depth. The 15-item GDS proved not to be suitable in a Brazilian sample. Item misfit and differential item functioning were responsible for considerable misperformance. Scale reduction led to a 10-item structure. This refined format presented adequate psychometric performance and no differential item functioning. The present study offers an alternative and more adequate version of the GDS to be applied in Brazilian subjects. It is also in line with the need for shorter, valid scales in clinical settings. Further investigations are needed to develop a set of cultural-invariant items, which could then be applied in transcultural investigations free of bias.


Asunto(s)
Depresión/diagnóstico , Evaluación Geriátrica/métodos , Encuestas y Cuestionarios , Anciano , Anciano de 80 o más Años , Brasil , Femenino , Humanos , Entrevistas como Asunto , Masculino , Modelos Psicológicos , Psicometría/instrumentación
11.
Artículo en Inglés | MEDLINE | ID: mdl-32168793

RESUMEN

This article reports results of the life trajectories from 92 Inuit who died by suicide, matched for age and gender with 92 living-controls. A proxy-based procedure and semi-structured interviews with informants were conducted to obtain trajectories of developmental events occurring over the life course for suicide and community-matched controls. Results from this research indicate two different trajectories that differentiate the control-group from the suicide-group throughout the life course. Even though the number of suicide attempts are similar between both groups, the suicide-group had a more important burden of adversity, which seemed to create a cascading effect, leading to suicide.


Asunto(s)
Inuk , Intento de Suicidio/etnología , Humanos , Entrevistas como Asunto , Nunavut
12.
Nat Commun ; 11(1): 1635, 2020 04 02.
Artículo en Inglés | MEDLINE | ID: mdl-32242018

RESUMEN

It remains unclear why many patients with depression do not respond to antidepressant treatment. In three cohorts of individuals with depression and treated with serotonin-norepinephrine reuptake inhibitor (N = 424) we show that responders, but not non-responders, display an increase of GPR56 mRNA in the blood. In a small group of subjects we also show that GPR56 is downregulated in the PFC of individuals with depression that died by suicide. In mice, we show that chronic stress-induced Gpr56 downregulation in the blood and prefrontal cortex (PFC), which is accompanied by depression-like behavior, and can be reversed by antidepressant treatment. Gpr56 knockdown in mouse PFC is associated with depressive-like behaviors, executive dysfunction and poor response to antidepressant treatment. GPR56 peptide agonists have antidepressant-like effects and upregulated AKT/GSK3/EIF4 pathways. Our findings uncover a potential role of GPR56 in antidepressant response.


Asunto(s)
Antidepresivos/administración & dosificación , Trastorno Depresivo Mayor/tratamiento farmacológico , Receptores Acoplados a Proteínas G/metabolismo , Adulto , Animales , Estudios de Cohortes , Trastorno Depresivo Mayor/genética , Trastorno Depresivo Mayor/metabolismo , Femenino , Glucógeno Sintasa Quinasa 3/metabolismo , Humanos , Masculino , Ratones , Ratones Endogámicos C57BL , Persona de Mediana Edad , Corteza Prefrontal/efectos de los fármacos , Corteza Prefrontal/metabolismo , Receptores Acoplados a Proteínas G/genética , Inhibidores Selectivos de la Recaptación de Serotonina/administración & dosificación , Resultado del Tratamiento
13.
Braz J Psychiatry ; 31 Suppl 1: S18-25, 2009 May.
Artículo en Portugués | MEDLINE | ID: mdl-19565147

RESUMEN

OBJECTIVE: Suicide is one of the leading causes of mortality worldwide, especially among young subjects. Suicide is considered the outcome of a multidimensional and complex phenomenon, which is a result of the interaction between several factors. The association between psychopathology and suicide has been extensively investigated. Major depression plays an important role among the psychiatric diagnoses associated with suicide. This finding seems to be confirmed by different study designs, and in distinct populations. The present paper aims to briefly review the recent findings regarding the suicide-related clinical features of depression. Moreover, strategies for suicide prevention were also reviewed. REVIEW: Recent references were identified and grouped in order to illustrate the main contributions about depression and suicide. Briefly, the literature review stresses the high prevalence of major depression among subjects presenting suicide behaviors. Psychopathological traits, such as aggression and impulsivity play a relevant role in triggering suicidal behaviors. Strategies for suicide prevention were also reviewed in Brazil and internationally. In general, detection and treatment are effective in reducing suicide rates. CONCLUSION: Studies regarding suicide behaviors have had a pragmatic approach, and generated a large body of evidence about correlates of suicide. However, these studies have not been able to provide a consistent theoretical explanation for this phenomenon. The recent adoption of modern strategies represents a possibility of enhancing the research capability of such studies. In order to be clinically useful, findings should make it possible to deepen the understanding over the experience of a suicidal person, as well as to design specific strategies for prevention and treatment in population subgroups.


Asunto(s)
Trastorno Depresivo/epidemiología , Suicidio/psicología , Suicidio/estadística & datos numéricos , Agresión/psicología , Brasil/epidemiología , Comorbilidad , Trastorno Depresivo/psicología , Trastorno Depresivo/terapia , Trastorno Depresivo Mayor/psicología , Humanos , Conducta Impulsiva/psicología , Trastornos Mentales/diagnóstico , Factores de Riesgo , Prevención del Suicidio
14.
Health Qual Life Outcomes ; 6: 5, 2008 Jan 21.
Artículo en Inglés | MEDLINE | ID: mdl-18208611

RESUMEN

BACKGROUND: Aging has determined a demographic shift in the world, which is considered a major societal achievement, and a challenge. Aging is primarily a subjective experience, shaped by factors such as gender and culture. There is a lack of instruments to assess attitudes to aging adequately. In addition, there is no instrument developed or validated in developing region contexts, so that the particularities of ageing in these areas are not included in the measures available. This paper aims to develop and validate a reliable attitude to aging instrument by combining classical psychometric approach and Rasch analysis. METHODS: Pilot study and field trial are described in details. Statistical analysis included classic psychometric theory (EFA and CFA) and Rasch measurement model. The latter was applied to examine unidimensionality, response scale and item fit. RESULTS: Sample was composed of 424 Brazilian old adults, which was compared to an international sample (n = 5238). The final instrument shows excellent psychometric performance (discriminant validity, confirmatory factor analysis and Rasch fit statistics). Rasch analysis indicated that modifications in the response scale and item deletions improved the initial solution derived from the classic approach. CONCLUSION: The combination of classic and modern psychometric theories in a complementary way is fruitful for development and validation of instruments. The construction of a reliable Brazilian Attitudes to Aging Questionnaire is important for assessing cultural specificities of aging in a transcultural perspective and can be applied in international cross-cultural investigations running less risk of cultural bias.


Asunto(s)
Envejecimiento/psicología , Actitud , Psicometría/métodos , Encuestas y Cuestionarios , Anciano , Anciano de 80 o más Años , Brasil , Comparación Transcultural , Análisis Factorial , Femenino , Humanos , Masculino , Persona de Mediana Edad , Modelos Psicológicos , Proyectos Piloto , Teoría Psicológica , Valores de Referencia , Reproducibilidad de los Resultados , Factores Socioeconómicos
15.
Gerontologist ; 48(5): 593-602, 2008 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-18981276

RESUMEN

PURPOSE: The impact of major depression on quality of life (QOL) and aging experiences in older adults has been reported. Studies have demonstrated that the clinical diagnosis of major depression is the strongest predictor for QOL. We postulate that some findings are biased because of the use of inadequate instruments. Although subsyndromal depression is more prevalent than major depression, there are no reports on its impact on QOL or attitudes toward aging. In the present study we aim at assessing the association of major and subsyndromal depression on QOL and attitudes toward aging in a large international sample. DESIGN AND METHODS: Our cross-sectional study assessed 4,316 respondents in 20 countries from five continents. The study used the World Health Organization Quality of Life (WHOQOL) Assessment for Older Adults, known as the WHOQOL-OLD; the brief version of the WHOQOL instrument, known as the WHOQOL-BREF; and the Attitudes to Ageing Questionnaire. Statistical analyses involved hierarchical multiple regression, as well as comparison of means. RESULTS: Even relatively minor levels of depression are associated with a significant decrease in all QOL domains and with a pattern of negative attitudes toward aging (overall WHOQOL-OLD R(2) change =.421). QOL and attitudes toward aging scores are lower as depression intensity is increased, even in subsyndromal levels (overall WHOQOL-OLD mean scores of 95.7 vs 86.4, p <.001). This phenomenon happens not only for clinically depressed individuals but also for subsyndromic individuals. IMPLICATIONS: Present findings suggest that classifying a respondent as nondepressed is not sufficient and is still not informative about his or her QOL and attitudes toward aging status.


Asunto(s)
Envejecimiento/psicología , Actitud Frente a la Salud , Trastorno Depresivo Mayor/fisiopatología , Internacionalidad , Calidad de Vida , Anciano , Anciano de 80 o más Años , Estudios Transversales , Femenino , Humanos , Masculino , Persona de Mediana Edad
16.
Rev Saude Publica ; 42(2): 308-16, 2008 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-18372982

RESUMEN

OBJECTIVE: To evaluate the Brazilian version of WHOQOL-OLD Module and to test potential changes to the instrument to increase its psychometric adequacy. METHODS: A total of 424 older adults living in a city in Southern Brazil completed the WHOQOL-OLD instrument, in 2005. Rasch analysis was used to explore the psychometric performance of the scale, as implemented by the RUMM2020 software. Item-trait interaction, threshold disorders, presence of differential item functioning and item fit, were analyzed. RESULTS: Two ("death and dying" and "sensory abilities") out of six domains showed inadequate item-trait interactions. Rescoring the response scale and deleting the most misperforming items led to scale improvement. The evaluation of domains and items individually showed that the "intimacy" domain does perform well in contrast to the findings using the classical approach. In addition, the "sensory abilities" domain does not derive an interval measure in its current format. CONCLUSIONS: Unidimensionality and local independence were seen in all domains. Changes in the response scale and deletion of problematic items improved the scale's performance.


Asunto(s)
Evaluación Geriátrica/métodos , Calidad de Vida , Encuestas y Cuestionarios/normas , Anciano , Anciano de 80 o más Años , Brasil , Femenino , Humanos , Masculino , Persona de Mediana Edad , Psicometría , Reproducibilidad de los Resultados , Factores Socioeconómicos , Traducciones
17.
Artículo en Inglés | MEDLINE | ID: mdl-29337928

RESUMEN

Epidemiological data shows an alarming prevalence of suicide in Aboriginal populations around the world. In Canada, the highest rates are found in Inuit communities. In this article, we present the findings of a secondary analysis conducted with data previously collected as part of a larger study of psychological autopsies conducted in Nunavut, Canada. The objective of this secondary analysis was to identify protective factors in the Inuit population of Nunavut by comparing people who died by suicide, people from the general population who attempted suicide, and people from the general population who never attempted suicide. This case-control study included 90 participants, with 30 participants in each group who were paired by birth date, sex, and community. Content analysis was first conducted on the clinical vignettes from the initial study in order to codify the presence of protective variables. Then, inferential analyses were conducted to highlight differences between each group in regards to protection. Findings demonstrated that (a) people with no suicide attempt have more protective variables throughout their lifespan than people who died by suicide and those with suicide attempts within the environmental, social, and individual dimensions; (b) people with suicide attempts significantly differ from the two other groups in regards to the use of services; and (c) protective factors that stem from the environmental dimension show the greatest difference between the three groups, being significantly more present in the group with no suicide attempt. Considering these findings, interventions could focus on enhancing environmental stability in Inuit communities as a suicide prevention strategy.


Asunto(s)
Inuk/estadística & datos numéricos , Suicidio , Adolescente , Adulto , Estudios de Casos y Controles , Femenino , Humanos , Masculino , Nunavut/epidemiología , Prevalencia , Factores Protectores , Suicidio/etnología , Suicidio/psicología , Adulto Joven
18.
School Ment Health ; 9(2): 172-183, 2017 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-35572790

RESUMEN

Youth Leaders Program (YLP) is a health intervention implemented in a rural Alaskan school district, which utilizes natural helpers and peer leaders to increase protective factors such as school engagement and personal/cultural identities, and to reduce risks associated with drug/alcohol abuse, violence, and bullying. Through these means, the program aims to ultimately decrease the disproportionately high rates of indigenous youth suicide in the region. This paper describes process and outcome evaluation findings from the program during the 2013-2014 school year. Data collected include a survey for program participants done at the beginning and end of the study year (n = 61, complete pairs); pre- and post-intervention school data (attendance, GPA, and disciplinary actions) (n = 86); an all-school survey asking students at the participating schools about their experience with YLP and participating youth (n = 764); interviews with program advisors (n = 11) and school principals (n = 2); and focus groups with participating students at all eleven participating schools at the end of the year. Outcomes included increased school attendance (mean attendance increased from 146 to 155 days) and improved academic performance (mean GPA of 8th, 9th, and 10th graders increased from 3.01 to 3.14) of program participants; positive peer reviews of participating student interventions in cases of bullying, depression, and suicidality; and a reported increase in the sense of agency, responsibility, and confidence among participating youth. The YLP appears to improve school climate and increase school and other protective factors for participating students. Recommendations for program implementation in the future and implications for school health will be discussed.

19.
Neuropsychopharmacology ; 42(10): 2043-2051, 2017 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-28079059

RESUMEN

MicroRNAs are short non-coding molecules that play a major role in regulating gene expression. Peripheral levels of miR-1202 have been shown to predict and mediate antidepressant response. However, it is not clear to what extent these peripheral measures reflect central neural changes in vivo. We approached this problem with the combined use of peripheral miR-1202 measures and neuroimaging. At baseline and after 8 weeks of desvenlafaxine (50-100 mg die), 20 patients were scanned with 3T magnetic resonance imaging, first at rest then during the Go/NoGo task, a classical test of response inhibition. Blood samples were collected at both time points. During resting state, lower baseline miR-1202 levels were predictive of increased connectivity from T0 to T8 between the posterior cingulate and the prefrontal, parietal, and occipital cortices. Changes in miR-1202 levels following desvenlafaxine treatment were negatively correlated with changes in activity in right precuneus within the default-mode network, and in connectivity between the posterior cingulate and the temporal and prefrontal cortices, and the precuneus. During the Go/NoGo task, baseline miR-1202 levels and changes in these levels were correlated with activity changes in different regions, including bilateral prefrontal, insular, cingulate, and temporal cortices, and left putamen and claustrum. Finally, secondary analyses in a subset of patients showed a trend for a significant correlation between miR-1202 levels and glutamate levels measured by spectroscopy. Changes in peripheral miR-1202 levels were therefore associated with changes in brain activity and connectivity in a network of brain regions associated with depression and antidepressant response. These effects may be mediated by the glutamatergic system.


Asunto(s)
Antidepresivos/uso terapéutico , Encéfalo/efectos de los fármacos , Trastorno Depresivo Mayor/tratamiento farmacológico , Trastorno Depresivo Mayor/fisiopatología , Succinato de Desvenlafaxina/uso terapéutico , MicroARNs/sangre , Adulto , Encéfalo/diagnóstico por imagen , Encéfalo/fisiopatología , Mapeo Encefálico , Trastorno Depresivo Mayor/diagnóstico por imagen , Femenino , Humanos , Inhibición Psicológica , Imagen por Resonancia Magnética , Masculino , Actividad Motora/efectos de los fármacos , Actividad Motora/fisiología , Vías Nerviosas/diagnóstico por imagen , Vías Nerviosas/efectos de los fármacos , Vías Nerviosas/fisiopatología , Pruebas Neuropsicológicas , Descanso , Inhibidores de Captación de Serotonina y Norepinefrina/uso terapéutico , Resultado del Tratamiento
20.
Rev Saude Publica ; 40(5): 785-91, 2006 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-17301899

RESUMEN

OBJECTIVE: The increasing proportion of older adults in the general population and the specific characteristics of this age group show the need for the development of specific instruments to measure quality of life in older adults. The study aimed at describing the development and validation of the Portuguese version of the World Health Organization Quality of Life for Older Persons (WHOQOL-OLD) module. METHODS: The WHOQOL-OLD instrument was administered in a sample of 424 older adults in the city of Porto Alegre, Southern Brazil, in 2005. The questionnaire comprises 24 items divided into six facets: sensory abilities; autonomy; past, present and future activities; social participation; death and dying; and intimacy. Besides the WHOQOL-OLD module, the WHOQOL-BREF, BDI and BHS instruments were also applied. The instrument's internal consistency was assessed using Cronbach's alpha coefficient. RESULTS: The instrument showed adequate internal consistency (Cronbach's coefficients ranging from 0.71 to 0.88), discriminant validity (p<0.01), concurrent validity (correlation coefficients ranging from -0.61 to -0.50) and test-retest reliability (correlation coefficients ranging from 0.58 to 0.82). Findings concerning criterion validity need further studies. CONCLUSIONS: The WHOQOL-OLD module is a useful alternative with good psychometric performance in the investigation of quality of life in older adults.


Asunto(s)
Evaluación Geriátrica/métodos , Calidad de Vida/psicología , Perfil de Impacto de Enfermedad , Encuestas y Cuestionarios/normas , Anciano , Anciano de 80 o más Años , Femenino , Grupos Focales , Humanos , Masculino , Proyectos Piloto , Análisis de Regresión , Reproducibilidad de los Resultados , Sensibilidad y Especificidad , Factores Socioeconómicos , Traducciones
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