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1.
Child Adolesc Psychiatry Ment Health ; 15(1): 64, 2021 Nov 10.
Artigo em Inglês | MEDLINE | ID: mdl-34758858

RESUMO

BACKGROUND: The stigmatization of mental health problems is a primary barrier for young people to approach mental health services when they suspect they might have such problems. Nevertheless, the internet has become a common platform on which they are likely to seek information on mental health. As such, this study aimed to explore responses from secondary school students in Can Tho city regarding suckhoetre.vn website. This website provided information on health and mental health, and this study assessed the potential relevance, appeal, accessibility, usefulness, and sustainability of the website. METHODS: A cross-sectional study included 643 secondary school students in Can Tho city selected by cluster sampling. Two weeks after the students were introduced to the website, they were invited to evaluate it using an anonymous questionnaire. The Chi-squared test was used to assess the significance of differences in the distribution of selected students' sociodemographic characteristics. RESULTS: Most (98.6%) participants visited the website in the two-week period, 74% once or twice a week, the others more often, up to once a day. Their activities included reading information (85.8%), seeking help (17.7%), sharing information (15.5%), giving advice to others (11.0%), and chatting or giving comments (9.8%). Most students rated the website very highly in terms of appeal, relevance, accessibility, and usefulness, and wanted to have access to the website in the future. These findings are positive signals to pursue the possible use of a website on mental health for secondary school students to help raise awareness and support good mental health among adolescents in Can Tho city and beyond. CONCLUSION: A website designed to provide information to secondary school students appeared to be a promising way to provide access to information on the topic of mental health. The website should be maintained and introduced widely to students, teachers and parents, with regular evaluation of the effectiveness of this website.

3.
Hum Resour Health ; 18(1): 32, 2020 05 04.
Artigo em Inglês | MEDLINE | ID: mdl-32366327

RESUMO

BACKGROUND: Primary health care (PHC), of which preventive medicine (PM) is a subspecialty, will have to cope with a deficiency of staff in the future, which makes the retention of graduates urgent. This study was conducted in Vietnam, where PM is an undergraduate degree in parallel to medical training. It aims to identify facilitating and hindering factors that impact recruitment and retention of PM graduates in the specialty. METHODS: A cross-sectional study enrolled 167 graduates who qualified as PM doctors from a Vietnamese medical school, between 2012 and 2018. Data were collected via an online questionnaire that asked participants about their motivation and continuation in PM, the major life roles that they were playing, and their satisfaction with their job. Multiple regression analyses were used to identify which life roles and motivational factors were related to the decision to take a PM position and to stay in the specialty, as well as how these factors held for subgroups of graduates (men, women, graduates who studied PM as their first or second study choice). RESULTS: Half of the PM graduates actually worked in PM, and only one fourth of them expressed the intention to stay in the field. Three years after qualification, many graduates had not yet decided whether to pursue a career in PM. Satisfaction with opportunities for continuous education was rated as highly motivating for graduates to choose and to stay in PM. Responsibility for taking care of parents motivated male graduates to choose PM, while good citizenship and serving the community was associated with the retention of graduates for whom PM was their first choice. CONCLUSIONS: The findings demonstrate the importance of social context and personal factors in developing primary care workforce policy. Providing opportunities for continued education and enhancing the attractiveness of PM as an appropriate specialty to doctors who are more attached to family and the community could be solutions to maintaining the workforce in PM. The implications could be useful for other less popular specialties that also struggle with recruiting and retaining staff.


Assuntos
Escolha da Profissão , Motivação , Médicos/psicologia , Medicina Preventiva/estatística & dados numéricos , Atenção Primária à Saúde/estatística & dados numéricos , Adulto , Estudos Transversais , Tomada de Decisões , Educação Médica Continuada , Feminino , Humanos , Satisfação no Emprego , Masculino , Papel do Médico , Análise de Regressão , Fatores Sexuais , Fatores Socioeconômicos , Vietnã
4.
Br J Anaesth ; 124(3): 261-270, 2020 03.
Artigo em Inglês | MEDLINE | ID: mdl-31864719

RESUMO

BACKGROUND: The Duke Activity Status Index (DASI) questionnaire might help incorporate self-reported functional capacity into preoperative risk assessment. Nonetheless, prognostically important thresholds in DASI scores remain unclear. We conducted a nested cohort analysis of the Measurement of Exercise Tolerance before Surgery (METS) study to characterise the association of preoperative DASI scores with postoperative death or complications. METHODS: The analysis included 1546 participants (≥40 yr of age) at an elevated cardiac risk who had inpatient noncardiac surgery. The primary outcome was 30-day death or myocardial injury. The secondary outcomes were 30-day death or myocardial infarction, in-hospital moderate-to-severe complications, and 1 yr death or new disability. Multivariable logistic regression modelling was used to characterise the adjusted association of preoperative DASI scores with outcomes. RESULTS: The DASI score had non-linear associations with outcomes. Self-reported functional capacity better than a DASI score of 34 was associated with reduced odds of 30-day death or myocardial injury (odds ratio: 0.97 per 1 point increase above 34; 95% confidence interval [CI]: 0.96-0.99) and 1 yr death or new disability (odds ratio: 0.96 per 1 point increase above 34; 95% CI: 0.92-0.99). Self-reported functional capacity worse than a DASI score of 34 was associated with increased odds of 30-day death or myocardial infarction (odds ratio: 1.05 per 1 point decrease below 34; 95% CI: 1.00-1.09), and moderate-to-severe complications (odds ratio: 1.03 per 1 point decrease below 34; 95% CI: 1.01-1.05). CONCLUSIONS: A DASI score of 34 represents a threshold for identifying patients at risk for myocardial injury, myocardial infarction, moderate-to-severe complications, and new disability.


Assuntos
Tolerância ao Exercício/fisiologia , Indicadores Básicos de Saúde , Cuidados Pré-Operatórios/métodos , Adulto , Idoso , Biomarcadores/sangue , Feminino , Nível de Saúde , Humanos , Masculino , Pessoa de Meia-Idade , Infarto do Miocárdio/etiologia , Infarto do Miocárdio/mortalidade , Peptídeo Natriurético Encefálico/sangue , Fragmentos de Peptídeos/sangue , Complicações Pós-Operatórias/mortalidade , Prognóstico , Estudos Prospectivos , Medição de Risco , Fatores de Risco , Autorrelato , Inquéritos e Questionários
5.
Curr Oncol ; 23(5): e461-e467, 2016 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-27803606

RESUMO

BACKGROUND: The overall survival (os) analysis of the icon7 trial demonstrated that frontline ovarian cancer patients with a high risk of progression (stage iii suboptimally debulked, and stage iii or iv with unresectable disease) benefited from the addition of bevacizumab to standard chemotherapy compared with standard chemotherapy alone. The objective of the present study was to investigate the cost-effectiveness, from a Canadian publicly funded perspective, of adding bevacizumab to frontline treatment of ovarian cancer at high risk of progression. METHODS: An area-under-the-curve, Markov-structured model was used to estimate the cost-effectiveness of the treatments. Long-term progression-free survival (pfs) and os were extracted from the icon7 trial (subgroup at high risk of relapse) and extrapolated by parametric time-to-event functions over a time horizon of 10 years. Canadian pfs health state utility values were obtained from the EQ-5D (EuroQoL Group, Rotterdam, Netherlands) questionnaires in the icon7 high-risk patient population. Canadian post-progression utility values were consistent with those for other gynecologic cancers. Cost inputs were informed by public sources. An annual 5% efficacy and cost discount rate was applied. A probabilistic sensitivity analysis and one-way sensitivity analyses were conducted. RESULTS: Ovarian cancer patients at high risk of progression receiving bevacizumab plus standard chemotherapy experienced a mean incremental quality-adjusted life year (qaly) gain of 0.374 years. At an additional cost of $35,901.54, the incremental cost-effectiveness ratio (icer) for the addition of bevacizumab to standard chemotherapy, relative to standard chemotherapy alone, was $95,942 per qaly. CONCLUSIONS: No formal health technology assessment willingness-to-pay threshold exists in Canada. However, at a threshold of $100,000 per qaly, bevacizumab in addition to chemotherapy is a cost-effective alternative for ovarian cancer patients who are at high risk of progression (stage iii suboptimally debulked, and stage iii or iv with unresectable disease). Using the $100,000 per qaly threshold in a probabilistic sensitivity analysis, it was determined that, compared with standard chemotherapy, the addition of bevacizumab to chemotherapy is cost-effective in 56% of tested scenarios.

6.
Community Dent Oral Epidemiol ; 44(6): 540-548, 2016 12.
Artigo em Inglês | MEDLINE | ID: mdl-27477831

RESUMO

OBJECTIVES: We used data from the TalaSurvey study to examine associations between dental health experiences, social network characteristics, and levels of behavioral and psychological acculturation in one location in the American Midwest. METHODS: Starting in parishes and community organizations, we identified adults of Mexican origin living in Indianapolis, who were 1st- or 2nd-generation immigrants from Tala, Mexico. Using a social networks methodology and following extensive formative research, we created an egocentric social network survey and administered it via face-to-face interviews. We identified the peers (alters) in interviewees' (egos) personal networks. We asked egos about multiple oral health and dental care variables for self and for alters. Acculturation (psychological and behavioral) was measured with a validated tool. Through logistic and negative binomial regression, we examined the effects of acculturation and network composition on ego's dental insurance status, dental office visits, and the reason for most recent dental office visit. RESULTS: A total of 332 egos (mean age 36; 63% female) were interviewed: 90% were born in Mexico; 45% had completed elementary school or lower; and most had low income. Each ego named 3.9 (SD±1.9) alters in his/her personal network, for a total of 1299 alters (mean age 39; 61% female). Both behavioral acculturation and psychological acculturation were moderately associated with dental insurance coverage, and greater behavioral acculturation predicted more frequent dental care. More psychologically acculturated egos were more likely to seek preventive care. Further, egos with more highly educated networks sought care more frequently and for preventive purposes, net of ego's own education and acculturation. CONCLUSIONS: This study contextualizes acculturation of Mexican Americans within the personal networks in which oral health discussion takes place. The findings underscore the critical importance of acculturation and social network factors in shaping a subgroup of Latinos' orientation toward dental care.


Assuntos
Aculturação , Assistência Odontológica/estatística & dados numéricos , Americanos Mexicanos/psicologia , Apoio Social , Adulto , Feminino , Humanos , Entrevistas como Assunto , Masculino , Odontologia Preventiva , Estados Unidos
7.
PLoS One ; 11(5): e0155699, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27192051

RESUMO

OBJECTIVE: To inform development of guidelines for hypertension management in Vietnam, we evaluated the cost-effectiveness of different strategies on screening for hypertension in preventing cardiovascular disease (CVD). METHODS: A decision tree was combined with a Markov model to measure incremental cost-effectiveness of different approaches to hypertension screening. Values used as input parameters for the model were taken from different sources. Various screening intervals (one-off, annually, biannually) and starting ages to screen (35, 45 or 55 years) and coverage of treatment were analysed. We ran both a ten-year and a lifetime horizon. Input parameters for the models were extracted from local and regional data. Probabilistic sensitivity analysis was used to evaluate parameter uncertainty. A threshold of three times GDP per capita was applied. RESULTS: Cost per quality adjusted life year (QALY) gained varied in different screening scenarios. In a ten-year horizon, the cost-effectiveness of screening for hypertension ranged from cost saving to Int$ 758,695 per QALY gained. For screening of men starting at 55 years, all screening scenarios gave a high probability of being cost-effective. For screening of females starting at 55 years, the probability of favourable cost-effectiveness was 90% with one-off screening. In a lifetime horizon, cost per QALY gained was lower than the threshold of Int$ 15,883 in all screening scenarios among males. Similar results were found in females when starting screening at 55 years. Starting screening in females at 45 years had a high probability of being cost-effective if screening biannually was combined with increasing coverage of treatment by 20% or even if sole biannual screening was considered. CONCLUSION: From a health economic perspective, integrating screening for hypertension into routine medical examination and related coverage by health insurance could be recommended. Screening for hypertension has a high probability of being cost-effective in preventing CVD. An adequate screening strategy can best be selected based on age, sex and screening interval.


Assuntos
Doenças Cardiovasculares/prevenção & controle , Análise Custo-Benefício , Hipertensão/epidemiologia , Programas de Rastreamento/economia , Adulto , Árvores de Decisões , Feminino , Humanos , Hipertensão/terapia , Incidência , Masculino , Cadeias de Markov , Pessoa de Meia-Idade , Prevalência , Risco , Vietnã/epidemiologia
8.
PLoS One ; 10(10): e0139560, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26506444

RESUMO

OBJECTIVES: The study aims to inform potential cost-effectiveness analysis of hypertension management in Vietnam by providing utilities and predictors of utilities in patients with hypertension. METHODS: Hypertensive patients up to 80 years old visiting the hospital were invited to participate in a survey using Quality Metric's Short-form 36v2TM translated into Vietnamese. Health-state utilities were estimated by applying a previously published algorithm. RESULTS: The mean utility of the 691 patients interviewed was 0.73. Controlling for age, sex, blood pressure (BP) stage, and history of stroke, the utilities in older patients were lower than those in younger ones, and statistically significantly different between the extremes of youngest and oldest groups (p = 0.03). Utility in males was higher than in females (p = 0.002). As expected, patients with a history of stroke appeared to exhibit lower utilities than patients without such history, but the difference was not statistically significant (p = 0.73). Patients with more than three comorbidities did have lower utilities than patients without comorbidity (p = 0.01). CONCLUSIONS: Health-state utilities found among hypertensive patients in Vietnam were similar to those found in other international studies. It is suggested that lower of health-state utilities exist among those patients who were older, female or had more than three comorbidities in comparison with respective reference groups. However, further research for confirmation is required. The data from this study provide a potential reference on health-state utilities of hypertensive patients in Vietnam as an input for future cost-effectiveness analysis of interventions. Also, it may serve as a reference for other similar populations, especially in the context of similar environments in low income countries.


Assuntos
Análise Custo-Benefício , Hipertensão/economia , Hipertensão/terapia , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Hipertensão/fisiopatologia , Masculino , Pessoa de Meia-Idade , Anos de Vida Ajustados por Qualidade de Vida , Inquéritos e Questionários , Vietnã
9.
Opt Lett ; 40(21): 4987-90, 2015 Nov 01.
Artigo em Inglês | MEDLINE | ID: mdl-26512500

RESUMO

This Letter presents the first quantitative assessment of the recently proposed metastable electronic state approach (MESA) for calculation of the nonlinear optical response of noble gas atoms. Based on the single active electron potentials for several atomic species, Stark resonant states are used to extract the nonlinear polarization and ionization rates free of any additional fitting parameters. It is shown that even the simplest version of the method provides a viable, first-principle-based, and self-consistent alternative to the standard model commonly used for simulations in the field of extreme nonlinear optics.

10.
Health Soc Care Community ; 22(6): 660-71, 2014 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-25257047

RESUMO

Vietnam has more than 6 million persons with disabilities (PWD), or 7.8% of the population. To provide better services for them, it is important to investigate the care they currently receive, and to obtain evidence on the health outcomes from that care. This study aimed to estimate the quality of life and functional status of a group of PWD in Vietnam and the cost of care they receive. This was an analytical study exploring the time and cost of informal care, the cost of illness (prevalence-based, patient perspective), quality of life using EuroQoL and functional status using the Barthel Index. The sample was selected from urban and rural areas of Quang Tri province in Central Vietnam, using systematic random sampling. Data were collected by face-to-face interviews, and in a 1-month diary recorded during July-August 2010 for summer and in December 2010 for winter. The costs are presented in 2010 USD values. The data were analysed by descriptive, univariate and multivariate statistics to summarise and explore the relationships among dependent and independent variables. The study sample included 210 PWD, with an average age of 38 years and duration of disability on average 26 years. The health-related quality of life measured in terms of the health utility score (0 = death, 1 = full health) was on average 0.44 and 0.39 in summer and winter respectively. The total cost of illness per year per case was USD 971 (83% of gross domestic product per capita); explanatory variables were the age of the PWD, receiving community-based rehabilitation, receiving government support and the severity of the disability. This illustrates the importance of services and support for reduction of the economic burden on the family. In conclusion, the results of this study provide information on the burden caused by disabilities in rural and urban households in Vietnam.


Assuntos
Atividades Cotidianas , Efeitos Psicossociais da Doença , Pessoas com Deficiência/reabilitação , Serviços de Assistência Domiciliar/economia , Adolescente , Adulto , Análise de Variância , Feminino , Humanos , Entrevistas como Assunto , Masculino , Pessoa de Meia-Idade , Avaliação de Resultados em Cuidados de Saúde , Qualidade de Vida , População Rural , População Urbana , Vietnã , Adulto Jovem
11.
Intern Med J ; 44(5): 490-6, 2014 May.
Artigo em Inglês | MEDLINE | ID: mdl-24589174

RESUMO

BACKGROUND: Programmes specific to inflammatory bowel disease (IBD) that facilitate transition from paediatric to adult care are currently lacking. AIM: We aimed to explore the perceived needs of adolescents with IBD among paediatric and adult gastroenterologists and to identify barriers to effective transition. METHODS: A web-based survey of paediatric and adult gastroenterologists in Australia and New Zealand employed both ranked items (Likert scale; from 1 not important to 5 very important) and forced choice items regarding the importance of various factors in facilitating effective transition of adolescents from paediatric to adult care. RESULTS: Response rate among 178 clinicians was 41%. Only 23% of respondents felt that adolescents with IBD were adequately prepared for transition to adult care. Psychological maturity (Mean = 4.3, standard deviation (SD) = 0.70) and readiness as assessed by adult caregiver (Mean = 4, SD = 0.72) were prioritised as the most important factors in determining timing of transfer. Self-efficacy and readiness as assessed by adult caregiver were considered the two most important factors to determine timing of transition by both groups of gastroenterologists. Poor medical and surgical handover (Mean = 4.10, SD = 0.8) and patients' lack of responsibility for their own care (Mean= 4.10, SD = 0.82) were perceived as major barriers to successful transition by both paediatric and adult gastroenterologists. CONCLUSIONS: Deficiencies exist in current transition care of adolescents with IBD in Australia and New Zealand. Standardising transition care practices with strategies aimed at optimising communication, patient education, self-efficacy and adherence may improve outcomes.


Assuntos
Medicina do Adolescente , Gastroenterologia , Doenças Inflamatórias Intestinais/terapia , Pediatria , Médicos/psicologia , Transição para Assistência do Adulto , Adolescente , Adulto , Austrália , Cuidadores , Comunicação , Pesquisas sobre Atenção à Saúde , Necessidades e Demandas de Serviços de Saúde , Humanos , Comunicação Interdisciplinar , Modelos Teóricos , Educação de Pacientes como Assunto , Transferência da Responsabilidade pelo Paciente , Relações Médico-Paciente , Prática Profissional/estatística & dados numéricos , Psicologia do Adolescente , Autoeficácia , Sociedades Médicas , Fatores de Tempo , Adulto Jovem
12.
HIV Med ; 13(7): 436-8, 2012 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-22276852

RESUMO

OBJECTIVE: A Swiss nonoccupational post-exposure prophylaxis (NPEP) source-tracing study successfully reduced unnecessary NPEP prescriptions by recruiting and testing source partners of unknown HIV serostatus. The Victorian NPEP Service in Australia attempted to replicate this study with the addition of HIV rapid testing and a mobile service. METHODS: Patients presenting to two busy NPEP sites who reported a source partner of unknown HIV status were routinely asked if their source could be traced. If the exposed person indicated that their source partner was traceable they were asked to contact them and discuss the possibility of having an HIV test. RESULTS: No sources were enrolled and the study was terminated. CONCLUSION: We hypothesize that there are a number of differences between Australia and Switzerland that make source tracing unfeasible in Australia.


Assuntos
Fármacos Anti-HIV/provisão & distribuição , Busca de Comunicante/métodos , Prescrições de Medicamentos/estatística & dados numéricos , Soropositividade para HIV/diagnóstico , Profilaxia Pós-Exposição/provisão & distribuição , Fármacos Anti-HIV/economia , Fármacos Anti-HIV/uso terapêutico , Austrália/epidemiologia , Busca de Comunicante/economia , Análise Custo-Benefício , Estudos de Viabilidade , Feminino , Soropositividade para HIV/tratamento farmacológico , Soropositividade para HIV/economia , Soropositividade para HIV/epidemiologia , Humanos , Masculino , Seleção de Pacientes , Profilaxia Pós-Exposição/economia , Parceiros Sexuais , Suíça/epidemiologia , Vitória/epidemiologia
13.
Aliment Pharmacol Ther ; 35(6): 705-13, 2012 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-22260637

RESUMO

BACKGROUND: The prognostic value of the model for end-stage liver disease (MELD) and sodium-based MELD variants in predicting survival following paracetamol overdose remains unclear. AIM: To examine the prognostic accuracy of sodium-based MELD variants in paracetamol-induced acute liver injury compared with the sequential organ failure assessment (SOFA) score. METHODS: Retrospective analysis of 138 single time point paracetamol overdoses admitted to a tertiary liver centre. Individual laboratory samples were correlated with the corresponding clinical parameters in relation to time post-overdose, and the daily MELD, MELD-Na, MELDNa, MESO, iMELD, UKELD, updated MELD and SOFA scores were calculated. RESULTS: Sixty-six (47.8%) patients developed hepatic encephalopathy, of whom 7 were transplanted and 21 died without liver transplantation. SOFA had a significantly greater area under the receiver operator characteristic for the prediction of spontaneous survival compared with MELD at both 72 (P = 0.024) and 96 (P = 0.017) h post-overdose. None of the sodium-based MELD variants improved the prognostic accuracy of MELD. A SOFA score >6 by 72 h or >7 by 96 h, post-overdose predicted death/transplantation with a negative predictive value of 96.9 (95% CI 90.2-99.4) and 98.8 (95% CI 93.6-99.9) respectively. SOFA and MELD had similar accuracy for predicting the development of hepatic encephalopathy (P = 0.493). CONCLUSIONS: The SOFA score is superior to MELD in predicting spontaneous survival following paracetamol-induced acute liver injury. Modification of the MELD score to include serum sodium does not improve prognostic accuracy in this setting. SOFA may have potential as a quantitative triage marker following paracetamol overdose.


Assuntos
Acetaminofen/efeitos adversos , Analgésicos não Narcóticos/efeitos adversos , Doença Hepática Terminal/diagnóstico , Encefalopatia Hepática/diagnóstico , Adulto , Biomarcadores/sangue , Estudos de Coortes , Doença Hepática Terminal/sangue , Doença Hepática Terminal/induzido quimicamente , Feminino , Nível de Saúde , Encefalopatia Hepática/induzido quimicamente , Encefalopatia Hepática/cirurgia , Humanos , Transplante de Fígado , Masculino , Pessoa de Meia-Idade , Modelos Teóricos , Valor Preditivo dos Testes , Prognóstico , Curva ROC , Estudos Retrospectivos , Adulto Jovem
14.
Clin Pharmacol Ther ; 87(5): 539-42, 2010 May.
Artigo em Inglês | MEDLINE | ID: mdl-20407460

RESUMO

Precompetitive collaboration is a growing driver for innovation and increased productivity in biomedical science and drug development. The Biomarkers Consortium, a public-private platform for precompetitive collaboration specific to biomarkers, demonstrated that adiponectin has potential utility as a predictor of metabolic responses to peroxisome proliferator-activated receptor (PPAR) agonists in individuals with type 2 diabetes. Despite the challenges overcome by this project, the most important lesson learned is that cross-company precompetitive collaboration is a feasible robust approach to biomarker qualification.


Assuntos
Biomarcadores/metabolismo , Comportamento Cooperativo , Desenho de Fármacos , Competição Econômica , Animais , Sistemas de Liberação de Medicamentos/métodos , Sistemas de Liberação de Medicamentos/tendências , Indústria Farmacêutica/economia , Indústria Farmacêutica/métodos , Indústria Farmacêutica/tendências , Competição Econômica/economia , Competição Econômica/tendências , Humanos , Ensaios Clínicos Controlados Aleatórios como Assunto/tendências
15.
Clin Pharmacol Ther ; 86(6): 619-25, 2009 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-19553931

RESUMO

This study, conducted under the Metabolic Disorders Steering Committee of the Biomarkers Consortium (a public-private partnership managed by the Foundation for the National Institutes of Health (FNIH)), analyzed blinded data on 2,688 type 2 diabetes (T2D) patients from randomized clinical trials conducted by four pharmaceutical companies. An increase in the levels of adiponectin was observed after peroxisome proliferator-activated receptor (PPAR)-agonist treatment (P < 0.0001), but not after treatment with non-PPAR drugs. This increase correlated with decreases in levels of glucose, hemoglobin A(1c) (Hb(A1c)), hematocrit, and triglycerides, and increases in levels of blood urea nitrogen, creatinine, and high-density lipoprotein cholesterol (HDL-C). Early (6-8 weeks) increases in levels of adiponectin after treatment with PPAR agonists showed a negative correlation (r = -0.21, P < 0.0001) with subsequent changes in levels of Hb(A1c). Changes in adiponectin level did not appear to be associated with baseline level of Hb(A1c). Logistic regression demonstrated that an increase in the level of adiponectin predicts a decrease in the level of Hb(A1c). These analyses confirm previously demonstrated relationships between adiponectin levels and metabolic parameters and support the robust predictive utility of adiponectin across the spectrum of glucose tolerance. Cross-company precompetitive collaboration is a feasible and powerful approach to biomarker qualification.


Assuntos
Glicemia/efeitos dos fármacos , Diabetes Mellitus Tipo 2/tratamento farmacológico , Hemoglobinas Glicadas/metabolismo , Hipoglicemiantes/uso terapêutico , Adiponectina/sangue , Adulto , Idoso , Biomarcadores/sangue , Nitrogênio da Ureia Sanguínea , HDL-Colesterol/sangue , Comportamento Cooperativo , Diabetes Mellitus Tipo 2/sangue , Indústria Farmacêutica , Estudos de Viabilidade , Feminino , Hematócrito , Humanos , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Receptores Ativados por Proliferador de Peroxissomo/agonistas , Valor Preditivo dos Testes , Ensaios Clínicos Controlados Aleatórios como Assunto , Fatores de Tempo , Resultado do Tratamento , Triglicerídeos/sangue , Adulto Jovem
16.
J R Soc Interface ; 6(31): 169-77, 2009 Feb 06.
Artigo em Inglês | MEDLINE | ID: mdl-18647739

RESUMO

Cattle faeces are considered the most important reservoir for human infection with Escherichia coli O157. We have previously described shedding of E. coli O157 in the faeces of naturally infected cattle cohorts. However, the data require further investigation to quantify the uncertainty and variability in the estimates previously presented. This paper proposes a method for analysing both the presence and the quantity of E. coli O157 in cattle faecal samples, using two isolation procedures, one of which enumerates E. coli O157. The combination of these two measurements, which are fundamentally different in nature and yet measuring a common outcome, has necessitated the development of a novel statistical model for ascertaining the contribution of the various components of variation (both natural and observation induced) and for judging the influence of explanatory variables. Most of the variation within the sampling hierarchy was attributable to multiple samples from the same animal. The contribution of laboratory-level variation was found to be low. After adjusting for fixed and random effects, short periods of increased intensity of shedding were identified in individual animals. We conclude that within-animal variation is greater than between animals over time, and studies aiming to elucidate the dynamics of shedding should focus resources, sampling more within than between animals. These findings have implications for the identification of persistent high shedders and for assessing their role in the epidemiology of E. coli O157 in cattle populations. The development of this non-standard statistical model may have many applications to other microbial count data.


Assuntos
Doenças dos Bovinos/microbiologia , Infecções por Escherichia coli/microbiologia , Escherichia coli O157/isolamento & purificação , Fezes/microbiologia , Modelos Estatísticos , Animais , Bovinos , Doenças dos Bovinos/epidemiologia , Estudos de Coortes , Interpretação Estatística de Dados , Infecções por Escherichia coli/epidemiologia , Feminino , Masculino , Cadeias de Markov , Método de Monte Carlo , Prevalência
17.
Psychooncology ; 17(7): 690-8, 2008 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-18033733

RESUMO

BACKGROUND: Patients' self-reported questionnaires measuring symptoms, functioning and quality of life (QOL) can help physicians to screen and monitor patient problems in oncology practice. Although many self-reported questionnaires have been developed, their role in clinical practice remains unclear. This study explores what oncologists and patients need from QOL questionnaires, what their clinical value is and generates recommendations how to improve the questionnaires for use in oncology practice. METHODS: Focus groups were conducted in the Leeds Cancer Centre (St James's and Cookridge hospitals, UK), with 31 patients (9 groups) and 16 oncologists (4 groups). Twenty patients completed a questionnaire. Framework analysis was employed for the analysis. RESULTS: Patients and physicians wanted the questionnaires to cover: common symptoms and problems (e.g. pain, fatigue), disease and treatment-specific issues (common for patients with similar diagnosis and/or treatment), individual patient-specific issues (usually non-physical, e.g. prognosis, family issues, sexuality) were important to some patients and relevant at specific points in the cancer journey. The timing and scope of enquiry should be flexible and correspond to disease and treatment stages. A model for measurement in clinical practice is proposed combining standard questionnaires with disease/treatment-specific items and a prompt list of items, aiming to facilitate discussion of individual-specific issues and minimize patient burden. Patients' and physicians' views on the clinical value of this approach are described. CONCLUSIONS: The findings emphasized the need for individualized assessment alongside standard measures, for flexible measurement adapted to treatment and follow-up, for clear interpretation of scores and decision guidelines.


Assuntos
Atitude do Pessoal de Saúde , Oncologia , Neoplasias/psicologia , Qualidade de Vida/psicologia , Atividades Cotidianas/psicologia , Adaptação Psicológica , Adulto , Idoso , Cuidadores/psicologia , Fadiga/psicologia , Feminino , Grupos Focais , Humanos , Masculino , Pessoa de Meia-Idade , Neoplasias/terapia , Ambulatório Hospitalar , Dor/psicologia , Prognóstico , Psicometria/estatística & dados numéricos , Reprodutibilidade dos Testes , Sexualidade , Papel do Doente
18.
AIDS Care ; 15(6): 763-73, 2003 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-14617498

RESUMO

As the HIV epidemic expands within the mental health system, mental health professionals (MHPs) are under increased pressure to provide more HIV-related care to clients in treatment for serious mental illness. Scientific understanding of MHPs' readiness to provide these services, however, is limited. This paper examines the distribution of HIV care experience, HIV care-related knowledge, and related attitudes among 524 MHPs employed in three CMHCs and two state psychiatric hospitals in central Indiana. The results indicate that both clinical experience and subjective readiness to provide HIV care are concentrated among a few MHPs--primarily gay, lesbian, or bisexual (g/l/b) staff--within each facility. This informal system for organizing HIV care highlights the unique contributions g/l/b staff members make both in providing direct HIV care and in making sure that HIV-related issues are addressed in mental health settings. The implications of g/l/b staff members' "gate making" function for improving the provision of HIV-related mental health services are discussed.


Assuntos
Atitude do Pessoal de Saúde , Atenção à Saúde/organização & administração , Infecções por HIV/terapia , Transtornos Mentais/terapia , Serviços de Saúde Mental/organização & administração , Síndrome da Imunodeficiência Adquirida/psicologia , Síndrome da Imunodeficiência Adquirida/terapia , Adolescente , Adulto , Idoso , Serviços Comunitários de Saúde Mental/organização & administração , Feminino , Infecções por HIV/psicologia , Hospitais Psiquiátricos/organização & administração , Humanos , Masculino , Transtornos Mentais/psicologia , Pessoa de Meia-Idade
19.
Can J Psychiatry ; 46(2): 144-8, 2001 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-11280083

RESUMO

OBJECTIVE: To examine longitudinally the effects of Assertive Community Treatment (ACT) on Global Assessment of Functioning (GAF) scores in Edmonton, Alberta. METHODS: We acquired GAF scores for all clients at initial registration in the ACT program and at subsequent 18- and 36-month time points while in ACT. We analyzed both the entire ACT cohort and separate diagnostic groups. RESULTS: We obtained baseline and follow-up GAF scores for 411 clients, of whom the largest diagnostic group suffered from schizophrenia (n = 189), followed by bipolar disorder (n = 98). Collapsed across all groups, GAF scores significantly improved at both 18 (P < 0.0001) and 36 months (P < 0.0001). By group, at 18-month follow-up, significant improvements were seen in patients with delusional disorder (P < 0.05), dysthymia (P < 0.05), schizoaffective disorder (P < 0.05), and schizophrenia (P < 0.001). This was also seen at 36-month follow-up, with the addition of significant improvements in those with bipolar disorder (P < 0.05). Those patients with major affective disorder or psychosis not otherwise specified (NOS) did not show significant improvements over time. Regardless of diagnosis, those clients with baseline GAF scores of < or = 40 significantly improved at both 18-month (P < 0.0001) and 36-month (P < 0.0001) follow-up, while those with baseline GAF scores above 40 did not show significant improvement. CONCLUSIONS: GAF scores improved at 18- and 36-month follow-up from enrolment in an ACT program. Groups with different diagnoses and levels of functioning at time of enrolment may not benefit to the same degree.


Assuntos
Serviços Comunitários de Saúde Mental , Transtornos Psicóticos/terapia , Ajustamento Social , Atividades Cotidianas/psicologia , Adulto , Alberta , Estudos de Coortes , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Equipe de Assistência ao Paciente , Transtornos Psicóticos/psicologia , Resultado do Tratamento
20.
J Stored Prod Res ; 37(3): 263-275, 2001 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-11172863

RESUMO

Trichogramma species (T. brassicae, T. pretiosum and T. carverae) were assessed for their suitability as bio-control agents against Ephestia cautella and E. kuehniella which are important pests in food manufacturing and processing facilities in Australia. Parameters examined were longevity, fecundity on eggs of E. kuehniella, walking speed of adult wasps, reaction to moth scales, and host acceptance and host suitability of eggs of E. cautella and E. kuehniella. T. pretiosum and T. carverae performed better than T. brassicae in all traits examined apart from fecundity. T. pretiosum and T. carverae differ mainly in higher fecundity and host acceptance in T. pretiosum, and a better host-finding ability (walking speed, reaction to moth scales) in T. carverae. The suitability of the Trichogramma species for use as control agents is discussed with respect to these results.

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