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1.
Chemosphere ; 351: 141152, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38218243

RESUMO

In 2013, California revised its upholstered furniture flammability standard TB 117-2013 to improve fire safety without the need for flame retardant (FR) chemicals. Subsequent legislation (SB 1019) required disclosure of FR content. In 2020 California expanded restriction on FR chemicals to include juvenile products and upholstered furniture (AB 2998). To monitor trends in FR use, and assess the effectiveness of the new regulations, we analyzed 346 samples from upholstered furniture (n = 270) and children's consumer products (n = 76), collected pre- and post-regulatory intervention for added FR chemicals (i.e., ∑FR > 1000 mg/kg). Upholstered furniture samples, collected from products before enactment of the new regulations, had a median FR concentration of 41,600 mg/kg (range: 1360-92,900 mg/kg), with 100% of the foam samples and 13.7% of the textile samples containing ∑FR > 1000 mg/kg. Firemaster formulations (FM 550 and FM 600), a mixture of triphenyl phosphate (TPHP), 2-ethylhexyl-2,3,4,5-tetrabromobenzoate (EH-TBB), bis(2-ethylhexyl)-3,4,5,6-tetrabromophthalate (BEH-TEBP) and a mixture of isopropyl- or tert-butyl-triphenyl phosphates (ITPs or TBPPs), were the most frequently detected FR (34%), followed by tris(1,3-dichloroisopropyl) phosphate (TDCIPP; 25%), TPHP with a mixture of polybrominated diphenyl ethers (BDE-47, 99, 100, 153 and 154; 20%) and tris(2-chloroethyl) phosphate (TCEP; 11%). Upholstered furniture components collected after enactment of the new legislation had a median FR concentration of 2600 mg/kg (range: 1160-49,800 mg/kg, outlier sample 282,200 mg/kg), with 11.9% of the foam samples and no textile samples containing ∑FR > 1000 mg/kg. Of these samples, tris(1-chloro-2-propyl) phosphate (TCIPP) was the most frequently detected FR (55%), followed by TDCIPP (30%) and Firemaster (FM 550, 15%). No PBDEs were detected in the post-regulatory intervention products. Our initial work on children's products showed 15% of the samples contained ∑FR > 1000 mg/kg. In our post- AB 2998 work, no regulated children's product components failed compliance (i.e., ∑FR > 1000 mg/kg). The data confirm successful adoption of the new regulations with most samples in compliance, demonstrating the efficacy of regulatory intervention. Given these results, environmental FR exposure is expected to decrease as older FR treated consumer products are replaced with FR free products.


Assuntos
Retardadores de Chama , Criança , Humanos , Retardadores de Chama/análise , Decoração de Interiores e Mobiliário , Poeira/análise , Organofosfatos/análise , Fosfatos/análise , Éteres Difenil Halogenados/análise , California , Monitoramento Ambiental/métodos
2.
Psychol Methods ; 27(2): 212-233, 2022 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-33166159

RESUMO

One of the most important methods that psychological scientists use to understand behavior and cognition is theorizing. Increasingly, theorizing is used to support not only additive hypotheses, but also multiplicative ones. And yet, authors often struggle to provide adequate theoretical justifications for multiplicative hypotheses. In the late 1960s and early 1970s, W. Mischel averred that, in "strong" situations, behavior is relatively uniform regardless of one's personality characteristics. In "weak" situations, that is, those that lack clear behavioral expectations, behavior is not constrained by the situation and is free to covary with personality. This is the situational strength interaction, and although this reasoning has been applied to personality-behavior models, we show that it can be used to justify many interaction models in psychology more generally. In some cases, such reasoning may serve to bolster the more traditional interaction arguments. In other cases, it shows that the traditional interaction arguments must be incorrect. In this tutorial, we describe a generalized situation strength phenomenon, called the restricted variance interaction, that can be used to pinpoint the nature, direction, and even the magnitude of many interaction hypotheses in the psychological sciences. We illustrate the value and application of restricted variance reasoning using examples from the workplace mistreatment literature and then extrapolate to several other areas of psychology. (PsycInfo Database Record (c) 2022 APA, all rights reserved).


Assuntos
Modelos Psicológicos , Personalidade , Cognição , Humanos
5.
Hum Vaccin Immunother ; 15(10): 2378-2385, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-30843757

RESUMO

Although a proven and effective preventive health measure, childhood immunization programs remain vulnerable to budgetary pressures. Sustainable financing of immunization programs is an important issue that presents a challenge for middle-income countries (MIC) in particular, in part due to technological advances meaning more vaccines are available. This study aimed to analyse trends in immunization program investment across 15 MIC selected based on availability of data, income level classification, and regional representativeness. We assessed investment trends in relation to vaccine coverage, vaccine access, and broader health indicators. Immunization and expenditure data were obtained from the World Health Organisation (WHO) database and the WHO UNICEF Joint Reporting Form and WHO Vaccine Product, Price and Procurement from 2006-2016. We calculated a weighted average index of vaccine commitment (WAIVC) based on vaccine coverage, vaccine scope, and weighted by vaccine innovation measured by approximating vaccine expenditure. Correlation analyses were conducted between immunization expenditure per-capita and each WAIVC, infant mortality and life expectancy. Correlation analyses at a global and individual country level indicate an improvement in immunization access, vaccination commitment measured by WAIVC, and scope of available vaccines in countries with sustained increases in vaccination funding. Increases in national immunization expenditure were correlated with reduced infant mortality and increased life expectancy. Vaccine expenditure comprises a small proportion (less than 2%) of total healthcare spending and has not uniformly increased in accordance with the scope of available vaccines. The present analysis supports the premise that countries with consistent increases in vaccine expenditure have increased vaccine coverage and commitment measured by WAIVC and improved broader health outcomes, indicating the value of sustained investment in vaccination for improved population health. The benefits of vaccine expenditure in this holistic fashion are critical to inform policy decisions on national budget allocation for vaccine funding.


Assuntos
Programas de Imunização , Renda , Cobertura Vacinal/economia , Vacinação/economia , Vacinas/economia , Países em Desenvolvimento , Saúde Global , Humanos , Programas de Imunização/economia , Programas de Imunização/tendências , Vacinação/tendências , Cobertura Vacinal/tendências , Organização Mundial da Saúde
6.
Br J Surg ; 105(6): 658-662, 2018 05.
Artigo em Inglês | MEDLINE | ID: mdl-29579327

RESUMO

BACKGROUND: Most guidelines recommend that patients who have undergone curative resection for primary colorectal cancer are followed up for 5 years with regular blood carcinoembryonic antigen (CEA) tests to trigger further investigation for recurrence. However, CEA may miss recurrences, or patients may have false alarms and undergo unnecessary investigation. METHODS: The diagnostic accuracy of trends in CEA measurements for recurrent colorectal cancer, taken as part of the FACS (Follow-up After Colorectal Surgery) trial (2003-2014), were analysed. Investigation to detect recurrence was triggered by clinical symptoms, scheduled CT or colonoscopy, or a CEA level of at least 7 µg/l above baseline. Time-dependent receiver operating characteristic (ROC) curve analysis was used to compare the diagnostic accuracy of CEA trends with single measurements. CEA trends were estimated using linear regression. RESULTS: The area under the ROC curve (AUC) for CEA trend was at least 0·820 across all 5 years of follow-up. In comparison, the AUCs for single measurements ranged from 0·623 to 0·749. Improvement was most marked at the end of the first year of follow-up, with the AUC increasing from 0·623 (95 per cent c.i. 0·509 to 0·736) to 0·880 (0·814 to 0·947). However, no individual trend threshold achieved a sensitivity above 70 per cent (30 per cent missed recurrences). CONCLUSION: Interpreting trends in CEA measurements instead of single CEA test results improves diagnostic accuracy for recurrence, but not sufficiently to warrant it being used as a single surveillance strategy to trigger further investigation. In the absence of a more accurate biomarker, monitoring trends in CEA should be combined with clinical, endoscopic and imaging surveillance for improved accuracy.


Assuntos
Antígeno Carcinoembrionário/sangue , Neoplasias Colorretais/diagnóstico , Recidiva Local de Neoplasia/diagnóstico , Idoso , Idoso de 80 Anos ou mais , Neoplasias Colorretais/sangue , Neoplasias Colorretais/cirurgia , Humanos , Modelos Lineares , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/sangue , Curva ROC , Reprodutibilidade dos Testes
7.
BJOG ; 125(11): 1397-1404, 2018 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-29473290

RESUMO

OBJECTIVE: Accurate assessment of gestational age (GA) is critical to paediatric care, but is limited in developing countries without access to ultrasound. Our objectives were to assess the accuracy of prediction of GA at birth and preterm birth classification using routinely collected anthropometry measures. DESIGN: Prospective cohort study. SETTING: United States. POPULATION OR SAMPLE: A total of 2334 non-obese and 468 obese pregnant women. METHODS: Enrolment GA was determined based on last menstrual period, confirmed by first-trimester ultrasound. Maternal anthropometry and fundal height (FH) were measured by a standardised protocol at study visits; FH alone was additionally abstracted from medical charts. Neonatal anthropometry measurements were obtained at birth. To estimate GA at delivery, we developed three predictor models using longitudinal FH alone and with maternal and neonatal anthropometry. For all predictors, we repeatedly sampled observations to construct training (60%) and test (40%) sets. Linear mixed models incorporated longitudinal maternal anthropometry and a shared parameter model incorporated neonatal anthropometry. We assessed models' accuracy under varied scenarios. MAIN OUTCOME MEASURES: Estimated GA at delivery. RESULTS: Prediction error for various combinations of anthropometric measures ranged between 13.9 and 14.9 days. Longitudinal FH alone predicted GA within 14.9 days with relatively stable prediction errors across individual race/ethnicities [whites (13.9 days), blacks (15.1 days), Hispanics (15.5 days) and Asians (13.1 days)], and correctly identified 75% of preterm births. The model was robust to additional scenarios. CONCLUSIONS: In low-risk, non-obese women, longitudinal FH measures alone can provide a reasonably accurate assessment of GA when ultrasound measures are not available. TWEETABLE ABSTRACT: Longitudinal fundal height alone predicts gestational age at birth when ultrasound measures are unavailable.


Assuntos
Antropometria/métodos , Idade Gestacional , Diagnóstico Pré-Natal/estatística & dados numéricos , Útero/patologia , Feminino , Humanos , Recém-Nascido , Masculino , Tamanho do Órgão , Valor Preditivo dos Testes , Gravidez , Diagnóstico Pré-Natal/métodos , Estudos Prospectivos , Estados Unidos
8.
BJOG ; 123(13): 2094-2103, 2016 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-26996156

RESUMO

OBJECTIVE: To assess offspring attention-deficit hyperactivity disorder (ADHD) symptoms and emotional/behavioural impairments at age 10 years in relation to maternal gestational weight gain (GWG) and prepregnancy body mass index (BMI). DESIGN AND SETTING: Longitudinal birth cohort from Magee-Womens Hospital, Pittsburgh, Pennsylvania (enrolled 1983-86). POPULATION: Mother-infant dyads (n = 511) were followed through pregnancy to 10 years. METHODS: Self-reported total GWG was converted to gestational-age-standardised z-scores. Multivariable linear and negative binomial regressions were used to estimate effects of GWG and BMI on outcomes. MAIN OUTCOME MEASURES: Child ADHD symptoms were assessed with the Conners' Continuous Performance Test. Child behaviour was assessed by parent and teacher ratings on the Child Behaviour Checklist (CBCL) and Teacher Report Form, respectively. RESULTS: The mean (SD) total GWG (kg) was 14.5 (5.9), and 10% of women had a pregravid BMI ≥30 kg/m2 . Prepregnancy obesity (BMI of 30 kg/m2 ) was associated with increased offspring problem behaviours including internalising behaviours (adjusted ß 3.3 points, 95% CI 1.7-4.9), externalising behaviours (adjusted ß 2.9 points, 95% CI 1.4-4.6), and attention problems (adjusted ß 2.3 points, 95% CI 1.1-3.4) on the CBCL, compared with normal weight mothers (BMI of 22 kg/m2 ). There were nonsignificant trends towards increased offspring impulsivity with low GWG among lean mothers (adjusted incidence rate ratio 1.2, 95% CI 0.9-1.5) and high GWG among overweight mothers (adjusted incidence rate ratio 1.7, 95% CI 0.9-2.8), but additional outcomes did not differ by GWG z-score. Results were not meaningfully different after excluding high-substance users. CONCLUSIONS: In a low-income and high-risk sample, we observed a small increase in child behaviour problems among children of obese mothers, which could have an impact on child behaviour in the population. TWEETABLE ABSTRACT: Maternal obesity is associated with a small increase in child behaviour problems.


Assuntos
Índice de Massa Corporal , Aumento de Peso , Atenção , Estudos de Coortes , Idade Gestacional , Humanos , Obesidade/epidemiologia , Sobrepeso/epidemiologia
9.
J Perinatol ; 34(4): 252-63, 2014 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-24457254

RESUMO

Our objective was to systematically review the data interrogating the association between gestational weight gain (GWG) and maternal and child health among women with twin gestations. We identified 15 articles of twin gestations that studied GWG in relation to a maternal, perinatal or child health outcome and controlled for gestational age at delivery and prepregnancy body mass index. A positive association between GWG and fetal size was consistently found. Evidence on preterm birth and pregnancy complications was inconsistent. The existing studies suffer from serious methodological weaknesses, including not properly accounting for the strong correlation between gestational duration and GWG and not controlling for chorionicity. In addition, serious perinatal outcomes were not studied, and no research is available on the association between GWG and outcomes beyond birth. Our systematic review underscores that GWG in twin gestations is a neglected area of research. Rigorous studies are needed to inform future evidence-based guidelines.


Assuntos
Gravidez Múltipla/fisiologia , Índice de Massa Corporal , Feminino , Feto/fisiologia , Humanos , Lactente , Bem-Estar do Lactente , Gravidez , Resultado da Gravidez , Nascimento Prematuro/fisiopatologia , Gêmeos , Aumento de Peso
10.
Prostate Cancer Prostatic Dis ; 16(4): 382-6, 2013 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-24080992

RESUMO

BACKGROUND: RTOG 0518 evaluated the potential benefit of zoledronic acid therapy in preventing bone fractures for patients with high grade and/or locally advanced, non-metastatic prostate adenocarcinoma receiving luteinizing hormone-releasing hormone (LHRH) agonist and radiotherapy (RT). METHODS: Eligible patients with T-scores of the hip (<-1.0, but >-2.5 vs >-1.0) and negative bone scans were prospectively randomized to either zoledronic acid, 4 mg, concurrently with the start of RT and then every six months for a total of 6 infusions (Arm 1) or observation (Arm 2). Vitamin D and calcium supplements were given to all patients. Secondary objectives included quality of life (QOL) and bone mineral density (BMD) changes over a period of three years. RESULTS: Of 109 patients accrued before early closure, 96 were eligible. Median follow-up was 36.3 months for Arm 1 and 34.8 months for Arm 2. Only two patients experienced a bone fracture (one in each arm) resulting in no difference in freedom from any bone fracture (P=0.95), nor in QOL. BMD percent changes from baseline to 36 months were statistically improved with the use of zoledronic acid compared to observation for the lumbar spine (6% vs -5%, P<0.0001), left total hip (1% vs -8%, P=0.0002), and left femoral neck (3% vs -8%, P=0.0007). CONCLUSIONS: For patients with advanced, non-metastatic prostate cancer receiving LHRH agonist and RT, the use of zoledronic acid was associated with statistically improved BMD percent changes. The small number of accrued patients resulted in decreased statistical power to detect any differences in the incidence of bone fractures or QOL.


Assuntos
Conservadores da Densidade Óssea/uso terapêutico , Difosfonatos/uso terapêutico , Fraturas Ósseas/prevenção & controle , Imidazóis/uso terapêutico , Osteoporose/etiologia , Osteoporose/prevenção & controle , Neoplasias da Próstata/complicações , Idoso , Idoso de 80 Anos ou mais , Antagonistas de Androgênios/efeitos adversos , Antagonistas de Androgênios/uso terapêutico , Antineoplásicos Hormonais/efeitos adversos , Antineoplásicos Hormonais/uso terapêutico , Densidade Óssea/efeitos dos fármacos , Fraturas Ósseas/etiologia , Humanos , Masculino , Pessoa de Meia-Idade , Gradação de Tumores , Estadiamento de Neoplasias , Neoplasias da Próstata/patologia , Neoplasias da Próstata/terapia , Resultado do Tratamento , Ácido Zoledrônico
12.
J Appl Psychol ; 96(2): 377-90, 2011 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-21058805

RESUMO

Emotional dissonance resulting from an employee's emotional labor is usually considered to lead to negative employee outcomes, such as job dissatisfaction and emotional exhaustion. Drawing on Festinger's (1957) cognitive dissonance theory, we argue that the relationship between service employees' surface acting and job dissatisfaction and emotional exhaustion is moderated by 2 aspects of a service worker's self-concept: the importance of displaying authentic emotions (reflecting the self-concept's self-liking dimension) and the employee's self-efficacy when faking emotions (reflecting the self-competence dimension). A survey of 528 frontline employees from a wide variety of service jobs provides support for the moderating role of both self-concept dimensions, which moderate 3 out of 4 relationships. Theoretical and practical implications are discussed from the perspectives of cognitive dissonance and emotional labor theories.


Assuntos
Esgotamento Profissional/psicologia , Enganação , Emoções , Satisfação no Emprego , Local de Trabalho/psicologia , Adulto , Dissonância Cognitiva , Feminino , Humanos , Relações Interpessoais , Autoimagem
13.
Anaesthesia ; 64(10): 1089-93, 2009 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-19735400

RESUMO

SUMMARY: In view of the controversy over the use of inotropes in free tissue transfer surgery, we assessed the effect of different intra-operative dobutamine infusion rates on blood flow in the anastomosed recipient artery. Twenty patients undergoing head and neck tumour resection and immediate reconstructive surgery with free tissue transfer were recruited. After completion of the microvascular anastomoses, patients received dobutamine infusions of 2, 4 and 6 microg x kg(-1) x min(-1) in a randomised order. After steady state dobutamine concentration was achieved, mean and maximum blood flow in the arterial anastomosis was measured at each concentration, using the Medi-Stim Butterfly Flowmeter system. Systemic haemodynamic parameters were simultaneously recorded using a pulse contour cardiac output system. Both mean and maximum blood flow increased significantly in the anastomosed artery at dobutamine infusions of 4 and 6 microg x kg(-1) x min(-1) and this was accompanied by increased cardiac output. This may improve free flap perfusion.


Assuntos
Cardiotônicos/farmacologia , Dobutamina/farmacologia , Neoplasias de Cabeça e Pescoço/cirurgia , Procedimentos de Cirurgia Plástica/métodos , Retalhos Cirúrgicos/irrigação sanguínea , Adulto , Idoso , Cardiotônicos/administração & dosagem , Dobutamina/administração & dosagem , Relação Dose-Resposta a Droga , Feminino , Hemodinâmica/efeitos dos fármacos , Humanos , Cuidados Intraoperatórios/métodos , Masculino , Microcirculação/efeitos dos fármacos , Microcirurgia , Pessoa de Meia-Idade
14.
Can J Infect Control ; 24(4): 213-8, 2009.
Artigo em Inglês | MEDLINE | ID: mdl-20128256

RESUMO

BACKGROUND: To determine the gaps in infection prevention and control (IPAC) resources and the disparities between rural and urban areas, the Provincial Infection Control Network surveyed the current resources in British Columbia (BC). METHODS: Acute care facilities (ACF) in six health authorities (HA) were surveyed for IPAC staff; distribution of work; infection prevention and control professional (ICP) to bed ratios; and teaching activities. HAs were designated as either urban or rural. RESULTS: Responses represented 54 (68%) of the ACF in BC. Rural HAs showed a significantly higher number of inexperienced ICPs (68% vs. 17%; p < 0.001). Only 22 (60%) of eligible ICPs were Certification Board of Infection Control certified. Five out of six HAs (83%) reported having an IPAC physician. Acute care ICP to bed ratios ranged from one per 67 to one per 175 and combined acute and long-term care ICP to bed ratios ranged from one per 270 beds to one per 525 beds. The number of ICPs who reported working overtime on a consistent basis ranged from 20 to 100%. CONCLUSIONS: ACFs surveyed did not meet the recommended standards for staffing and IPAC resources in order to function as an effective program. Surveys of infection control resources are valuable tools to identify needs and assist in acquiring the resources to fill the identified gaps within a health authority.


Assuntos
Profissionais Controladores de Infecções/provisão & distribuição , Controle de Infecções/métodos , Carga de Trabalho , Colúmbia Britânica , Coleta de Dados , Hospitais , Humanos , Controle de Infecções/normas , Casas de Saúde
15.
J Appl Psychol ; 93(6): 1422-8, 2008 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-19025258

RESUMO

An organization's diversity climate refers to employees' shared perceptions of the policies and practices that communicate the extent to which fostering diversity and eliminating discrimination is a priority in the organization. The authors propose a salient element of the organizational context, the racial composition of the community where the organization is located, serves an important signaling function that shapes the formation of climate perceptions. In a study of 142 retail bank units in the United States, evidence is found for a relationship between the racial composition of an organization's workforce and diversity climate that is moderated by the racial composition of the community where the organization is located. The results suggest that when few racial minorities live in the community in which an organization is embedded, workforce diversity has an impact on employees' diversity climate perceptions. As racial minority popular share increases, workforce diversity tends to lose this signaling value.


Assuntos
Diversidade Cultural , Emprego/psicologia , Cultura Organizacional , Gestão de Recursos Humanos , Meio Social , Local de Trabalho/psicologia , Demografia , Humanos , Características de Residência , Recursos Humanos
16.
Aliment Pharmacol Ther ; 27(3): 228-40, 2008 Feb 01.
Artigo em Inglês | MEDLINE | ID: mdl-17988236

RESUMO

BACKGROUND: Systemic corticosteroids are effective in ulcerative colitis but commonly cause side effects. AIM: To compare the safety and efficacy of a sparingly absorbed formulation of prednisolone metasulfobenzoate (Predocol) with a conventional tapering course of oral prednisolone. METHOD: In a double-blind randomized study, 59 active ulcerative colitis patients received Predocol 40 mg/day for 6 months, 61 received Predocol 60 mg/day for 6 months and 61 received prednisolone 40 mg/day for 2 weeks, tapered to week 8, followed by placebo until 6 months. RESULTS: Steroid-related side effects assessed using a 10-cm visual analogue scale were fewer at 2 months with Predocol 40 mg [VAS 8.1 cm (2.6), mean (s.d.)], or 60 mg [8.1 (2.1)] compared with prednisolone [6.7 (2.7); P = 0.01]. Mood changes affected 43% receiving prednisolone at 4 weeks vs. 8% for Predocol 40 mg (P = 0.001). Remission rates (Powell-Tuck < or =2) at 2 months were Predocol 40 mg 46%, Predocol 60 mg 28% and tapering prednisolone 41% (P = 0.13). Visual analogue scale for efficacy also showed non-inferiority for Predocol 40 mg/day. Remission rates at 6 months were Predocol 40 mg 51%, Predocol 60 mg 38% and tapering prednisolone 32% (P = 0.08). CONCLUSION: Predocol 40 mg/day has similar efficacy but markedly fewer side effects than a conventional tapering prednisolone regimen (ISRCTN14133410).


Assuntos
Anti-Inflamatórios/administração & dosagem , Colite Ulcerativa/tratamento farmacológico , Prednisolona/análogos & derivados , Adulto , Idoso , Anti-Inflamatórios/efeitos adversos , Distribuição de Qui-Quadrado , Método Duplo-Cego , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Prednisolona/administração & dosagem , Prednisolona/efeitos adversos , Pulsoterapia , Estatísticas não Paramétricas , Resultado do Tratamento
17.
Epidemiol Infect ; 135(3): 417-26, 2007 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-16836798

RESUMO

This paper describes sentinel laboratory surveillance of hepatitis C antibody testing in England. Demographic and test result data were supplemented by follow-up questionnaires sent to the requesting clinician. Between October 2002 and September 2003 almost 75000 anti-HCV tests were performed in eight sentinel centres. More males were tested than females and over half of those tested were aged 25-44 years. Overall 5.7% (3333/58144, range 2.8-7.7%) individuals tested positive. Follow-up questionnaire data showed that 82% (1043/1277) of the positives had injecting drug use reported as the main risk exposure. The majority of negative individuals were undergoing routine screening as recommended for specific patient groups. Most individuals were asymptomatic. Antibody prevalence was estimated to be 34% in current injecting drug users and 42% in former injectors. Comparing positives to routine national surveillance suggests that only 53% (1782/3333) of diagnosed cases were reported. Sentinel laboratory data can provide valuable supplementary data to national surveillance.


Assuntos
Anticorpos Anti-Hepatite C/sangue , Hepatite C/epidemiologia , Vigilância de Evento Sentinela , Doença Aguda , Adolescente , Adulto , Idoso , Criança , Pré-Escolar , Inglaterra/epidemiologia , Feminino , Seguimentos , Humanos , Lactente , Masculino , Pessoa de Meia-Idade , Inquéritos e Questionários
18.
J Viral Hepat ; 13(4): 264-71, 2006 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-16611193

RESUMO

Management of hepatitis C virus (HCV)-infected individuals requires referral to specialist care. To determine whether patients newly diagnosed as anti-HCV positive are appropriately referred for further investigation and management, and if not, to determine why not. We studied patients tested for antibodies to HCV by Nottingham Public Health Laboratory in a 2-year period (2000-2002). The progress of newly diagnosed anti-HCV positive patients into specialist clinics for further management was documented. For patients not referred for specialist care, a questionnaire was sent to the clinician requesting the initial anti-HCV test, to identify reasons for nonreferral. Eleven thousand one hundred and seventy-seven patients were tested for anti-HCV. Two hundred and fifty-six (2.3%) were newly diagnosed as being anti-HCV positive. Two per cent of samples sent from primary care were anti-HCV positive, compared to 18.8, 18.9 and 1.3% sent from prison, drug and alcohol units, and secondary care, respectively. About 64.3% of positive patients diagnosed in primary care were referred to specialist care, compared to 18.4, 42.4 and 62.6% of patients diagnosed in the other three settings. One hundred and twenty-five (49%) newly diagnosed patients were referred appropriately for further management. 68 of these attended clinic, 45 underwent liver biopsy and 26 (10%) began treatment. One hundred and thirty-one patients (51%) were not referred. In 54 cases, there was no evidence that the anti-HCV positive result reached the patient. In 15, referral was considered but rejected, and 20 patients were referred to non-HCV-specialists (their general practitioners or to genito-urinary medicine). Hence less than 50% of newly diagnosed anti-HCV positive patients are referred to an appropriate clinic for further investigation and management. Reasons for this are multifarious and complex, reflecting both systems failure and patient choice. Unless these are understood and addressed, the Department of Health Hepatitis C Strategy (2002) and Action Plan for England (2004) will fail to achieve their intended objectives.


Assuntos
Hepacivirus/crescimento & desenvolvimento , Anticorpos Anti-Hepatite C/sangue , Hepatite C/diagnóstico , Hepatite C/terapia , Encaminhamento e Consulta , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Criança , Estudos Transversais , Feminino , Hepatite C/imunologia , Hepatite C/virologia , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Reino Unido
19.
Anaesthesia ; 60(12): 1179-84, 2005 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-16288615

RESUMO

Histamine, an inflammatory mediator in its own right, may also be a marker for a more widespread systemic inflammatory process. In this study we have examined variations in plasma histamine concentrations produced during the course of cardiac surgery involving cardiopulmonary bypass, the relationship between these variations and intra-operative events. By assays of serum tryptase and CD-63 expression we have also attempted to identify the source of histamine. Histamine concentrations that were significantly raised from baseline level were demonstrated. These were elevated from the time of aortic cross-clamping and continued to be raised for 24 h postoperatively (p < 0.00625). This was associated with an increase in CD-63 expression (p < 0.025) (but not an increase in tryptase concentration) following aortic cross-clamping and protamine administration, suggesting that basophils are the source of histamine. 41% of patients had arrhythmias in the post bypass period. The rise in histamine levels was not related to the incidence of cardiac arrhythmias.


Assuntos
Ponte Cardiopulmonar , Liberação de Histamina , Adulto , Idoso , Antígenos CD/sangue , Arritmias Cardíacas/sangue , Procedimentos Cirúrgicos Cardíacos , Feminino , Histamina/sangue , Humanos , Mediadores da Inflamação/sangue , Período Intraoperatório , Masculino , Pessoa de Meia-Idade , Glicoproteínas da Membrana de Plaquetas , Complicações Pós-Operatórias/sangue , Serina Endopeptidases/sangue , Tetraspanina 30 , Triptases
20.
J Appl Psychol ; 90(4): 629-43, 2005 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-16060783

RESUMO

Although organizational justice scholars often describe unfairness as an emotionally laden experience, the role of emotion is underresearched. In a study of individuals who experienced being laid off (N = 173), the authors found that outcome favorability interacts with both procedural and interactional justice to predict participants' emotions. The pattern of interaction differed for inward-focused (i.e., shame and guilt) and outward-focused (i.e., anger and hostility) negative emotions. Attributions of blame mediated the relationship between fairness perceptions and outward-focused negative emotion. Outward-focused emotion mediated the relationship between fairness perceptions and retaliation.


Assuntos
Afeto , Cultura Organizacional , Justiça Social , Feminino , Humanos , Relações Interpessoais , Masculino , Pessoa de Meia-Idade , Inquéritos e Questionários
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