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1.
Eur J Hum Genet ; 31(5): 588-595, 2023 05.
Artigo em Inglês | MEDLINE | ID: mdl-36927983

RESUMO

We multiply ascertained the BRCA1 pathogenic missense variant c.5207T > C; p.Val1736Ala (V1736A) in clinical investigation of breast and ovarian cancer families from Orkney in the Northern Isles of Scotland, UK. We sought to investigate the frequency and clinical relevance of this variant in those of Orcadian ancestry as an exemplar of the value of population cohorts in clinical care, especially in isolated populations. Oral history and birth, marriage and death registrations indicated genealogical linkage of the clinical cases to ancestors from the Isle of Westray, Orkney. Further clinical cases were identified through targeted testing for V1736A in women of Orcadian ancestry attending National Health Service (NHS) genetic clinics for breast and ovarian cancer family risk assessments. The variant segregates with female breast and ovarian cancer in clinically ascertained cases. Separately, exome sequence data from 2088 volunteer participants with three or more Orcadian grandparents, in the ORCADES research cohort, was interrogated to estimate the population prevalence of V1736A in Orcadians. The effects of the variant were assessed using Electronic Health Record (EHR) linkage. Twenty out of 2088 ORCADES research volunteers (~1%) carry V1736A, with a common haplotype around the variant. This allele frequency is ~480-fold higher than in UK Biobank participants. Cost-effectiveness of population screening for BRCA1 founder pathogenic variants has been demonstrated at a carrier frequency below the ~1% observed here. Thus we suggest that Orcadian women should be offered testing for the BRCA1 V1736A founder pathogenic variant, starting with those with known Westray ancestry.


Assuntos
Neoplasias da Mama , Neoplasias Ovarianas , Humanos , Feminino , Medicina Estatal , Proteína BRCA1/genética , Neoplasias Ovarianas/epidemiologia , Neoplasias Ovarianas/genética , Neoplasias Ovarianas/patologia , Frequência do Gene , Haplótipos , Escócia/epidemiologia , Neoplasias da Mama/genética , Predisposição Genética para Doença , Proteína BRCA2/genética , Testes Genéticos
2.
BMC Neurol ; 22(1): 269, 2022 Jul 19.
Artigo em Inglês | MEDLINE | ID: mdl-35854226

RESUMO

BACKGROUND: Myalgic encephalomyelitis / chronic fatigue syndrome (ME/CFS) is a common, long-term condition characterised by post-exertional malaise, often with fatigue that is not significantly relieved by rest. ME/CFS has no confirmed diagnostic test or effective treatment and we lack knowledge of its causes. Identification of genes and cellular processes whose disruption adds to ME/CFS risk is a necessary first step towards development of effective therapy. METHODS: Here we describe DecodeME, an ongoing study co-produced by people with lived experience of ME/CFS and scientists. Together we designed the study and obtained funding and are now recruiting up to 25,000 people in the UK with a clinical diagnosis of ME/CFS. Those eligible for the study are at least 16 years old, pass international study criteria, and lack any alternative diagnoses that can result in chronic fatigue. These will include 5,000 people whose ME/CFS diagnosis was a consequence of SARS-CoV-2 infection. Questionnaires are completed online or on paper. Participants' saliva DNA samples are acquired by post, which improves participation by more severely-affected individuals. Digital marketing and social media approaches resulted in 29,000 people with ME/CFS in the UK pre-registering their interest in participating. We will perform a genome-wide association study, comparing participants' genotypes with those from UK Biobank as controls. This should generate hypotheses regarding the genes, mechanisms and cell types contributing to ME/CFS disease aetiology. DISCUSSION: The DecodeME study has been reviewed and given a favourable opinion by the North West - Liverpool Central Research Ethics Committee (21/NW/0169). Relevant documents will be available online ( www.decodeme.org.uk ). Genetic data will be disseminated as associated variants and genomic intervals, and as summary statistics. Results will be reported on the DecodeME website and via open access publications.


Assuntos
COVID-19 , Síndrome de Fadiga Crônica , Adolescente , Síndrome de Fadiga Crônica/genética , Estudo de Associação Genômica Ampla , Humanos , Estudos Longitudinais , SARS-CoV-2
3.
Prev Med ; 129: 105811, 2019 12.
Artigo em Inglês | MEDLINE | ID: mdl-31739907

RESUMO

This Letter to the Editor raises questions regarding a recently published article, "Food insecurity transitions and smoking behavior among older adults who smoke."


Assuntos
Abandono do Hábito de Fumar , Idoso , Abastecimento de Alimentos , Humanos , Fumaça , Fumar
4.
Am J Health Promot ; 33(5): 698-707, 2019 06.
Artigo em Inglês | MEDLINE | ID: mdl-30463414

RESUMO

PURPOSE: To examine whether food insecurity longitudinally affects smoking status. DESIGN: Population-based prospective study. SETTING: Data from the 2003 and 2015 Panel Study of Income Dynamics (PSID). PARTICIPANTS: Four thousand five hundred sixty-three adults who were smokers and nonsmokers, participating in the 2003 (current study baseline) and 2015 (current study follow-up) waves of PSID. MEASURES: Based on self-reported smoking status at baseline and follow-up, respondents were categorized as continued smoking, stopped smoking, started smoking, and continued nonsmoking. Similarly, respondents were categorized as stayed food secure, stayed food insecure, became food insecure, and became food secure based on responses to the Food Security Survey at baseline and follow-up. ANALYSIS: Two logistic regression analyses to examine (1) among smokers at baseline the odds of stopping versus continuing smoking by follow-up and (2) among nonsmokers at baseline the odds of starting versus continuing nonsmoking by follow-up. In both models, change in food insecurity status was the primary independent variable, controlling for demographics including poverty. RESULTS: Among smokers at baseline, becoming food insecure (vs staying food secure) was independently associated with lower likelihood of stopping smoking by follow-up (odds ratio [OR] = 0.66). Among nonsmokers at baseline, becoming food insecure (vs staying food secure) was independently associated with higher likelihood of starting smoking by follow-up (OR = 3.77). CONCLUSIONS: Food insecurity is a risk factor for smoking, which has significant implications for developing interventions to reduce smoking prevalence, especially among low-income groups.


Assuntos
Fumar Cigarros/epidemiologia , Abastecimento de Alimentos/estatística & dados numéricos , Pobreza/estatística & dados numéricos , Abandono do Hábito de Fumar/estatística & dados numéricos , Adolescente , Adulto , Feminino , Inquéritos Epidemiológicos , Humanos , Modelos Logísticos , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Assistência Pública/estatística & dados numéricos , Fatores Socioeconômicos , Adulto Jovem
5.
PLoS Med ; 13(7): e1002074, 2016 07.
Artigo em Inglês | MEDLINE | ID: mdl-27403739

RESUMO

BACKGROUND: In 2015, the United States Preventive Services Task Force (USPSTF) recommended targeted screening for prediabetes and diabetes (dysglycemia) in adults who are aged 40 to 70 y old and overweight or obese. Given increasing prevalence of dysglycemia at younger ages and lower body weight, particularly among racial/ethnic minorities, we sought to determine whether the current screening criteria may fail to identify some high-risk population subgroups. METHODS AND FINDINGS: We investigated the performance of the 2015 USPSTF screening recommendation in detecting dysglycemia among US community health center patients. A retrospective analysis of electronic health record (EHR) data from 50,515 adult primary care patients was conducted. Longitudinal EHR data were collected in six health centers in the Midwest and Southwest. Patients with a first office visit between 2008 and 2010 were identified and followed for up to 3 y through 2013. We excluded patients who had dysglycemia at baseline and those with fewer than two office visits during the follow-up period. The exposure of interest was eligibility for screening according to the 2015 USPSTF criteria. The primary outcome was development of dysglycemia during follow-up, determined by: (1) laboratory results (fasting/2-h postload/random glucose ≥ 100/140/200 mg/dL [5.55/7.77/11.10 mmol/L] or hemoglobin A1C ≥ 5.7% [39 mmol/mol]); (2) diagnosis codes for prediabetes or type 2 diabetes; or (3) antidiabetic medication order. At baseline, 18,846 (37.3%) participants were aged ≥40 y, 33,537 (66.4%) were overweight or obese, and 39,061 (77.3%) were racial/ethnic minorities (34.6% Black, 33.9% Hispanic/Latino, and 8.7% Other). Overall, 29,946 (59.3%) patients had a glycemic test within 3 y of follow-up, and 8,478 of them developed dysglycemia. Only 12,679 (25.1%) patients were eligible for screening according to the 2015 USPSTF criteria, which demonstrated the following sensitivity and specificity (95% CI): 45.0% (43.9%-46.1%) and 71.9% (71.3%-72.5%), respectively. Racial/ethnic minorities were significantly less likely to be eligible for screening yet had higher odds of developing dysglycemia than whites (odds ratio [95% CI]: Blacks 1.24 [1.09-1.40]; Hispanics 1.46 [1.30-1.64]; and Other 1.33 [1.16-1.54]). In addition, the screening criteria had lower sensitivity in all racial/ethnic minority groups compared to whites. Limitations of this study include the ascertainment of dysglycemia only among patients with available test results and findings that may not be generalizable at the population level. CONCLUSIONS: Targeted diabetes screening based on new USPSTF criteria may detect approximately half of adult community health center patients with undiagnosed dysglycemia and proportionately fewer racial/ethnic minorities than whites. Future research is needed to estimate the performance of these screening criteria in population-based samples.


Assuntos
Centros Comunitários de Saúde/estatística & dados numéricos , Estado Pré-Diabético/diagnóstico , Adulto , Idoso , Diabetes Mellitus Tipo 2/diagnóstico , Diabetes Mellitus Tipo 2/prevenção & controle , Feminino , Humanos , Masculino , Programas de Rastreamento , Pessoa de Meia-Idade , Estado Pré-Diabético/sangue , Grupos Raciais/estatística & dados numéricos , Estudos Retrospectivos , Fatores de Risco , Estados Unidos/epidemiologia
6.
Cancer Causes Control ; 27(7): 881-7, 2016 07.
Artigo em Inglês | MEDLINE | ID: mdl-27228991

RESUMO

PURPOSE: Fecal occult blood testing (FOBT) is a pragmatic screening option for many community health centers (CHCs), but FOBT screening programs will not reduce mortality if patients with positive results do not undergo diagnostic colonoscopy (DC). This study was conducted to investigate DC completion among CHC patients. METHODS: This retrospective cohort study used data from three CHCs in the Midwest and Southwest. The primary study outcome was DC completion within 6 months of positive FOBT among adults age 50-75. Patient data was collected using automated electronic queries. Manual chart reviews were conducted if queries produced no evidence of DC. Poisson regression models described adjusted relative risks (RRs) of DC completion. RESULTS: The study included 308 patients; 63.3 % were female, 48.7 % were Spanish speakers and 35.7 % were uninsured. Based on combined query and chart review findings, 51.5 % completed DC. Spanish speakers were more likely than English speakers to complete DC [RR 1.19; 95 % confidence interval (CI) 1.04-1.36; P = 0.009], and DC completion was lower among patients with 0 visits than those with 1-2 visits (RR 2.81; 95% CI 1.83-4.33; P < 0.001) or ≥3 visits (RR 3.06; 95% CI 1.57-5.95; P = 0.001). CONCLUSIONS: DC completion was low overall, which raises concerns about whether FOBT can reduce CRC mortality in practice. Further research is needed to understand whether CHC navigator programs can achieve very high DC rates. If organizations use FOBT as their primary CRC screening approach and a substantial number of patients receive positive results, both screening rates and DC rates should be measured.


Assuntos
Colonoscopia , Neoplasias Colorretais/diagnóstico , Detecção Precoce de Câncer/métodos , Sangue Oculto , Idoso , Centros Comunitários de Saúde , Feminino , Hispânico ou Latino , Humanos , Masculino , Programas de Rastreamento/métodos , Pessoas sem Cobertura de Seguro de Saúde , Pessoa de Meia-Idade , Cooperação do Paciente , Estudos Retrospectivos , Estados Unidos/epidemiologia
7.
Am J Prev Med ; 50(2): e54-61, 2016 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-26362405

RESUMO

INTRODUCTION: Fecal immunochemical testing (FIT) is an attractive approach for colorectal cancer screening at community health centers. This budget impact analysis investigated benefits and costs of FIT outreach-with FIT kits mailed to patients, followed by reminders and phone calls-compared with point-of-care (POC) strategies. METHODS: Five screening and cost outcomes were simulated over 1 year at a "base case" community health center serving 1000 screening-eligible patients: (1) FIT completion among patients due for screening; (2) proportion up-to-date on screening; (3) cost per patient due for screening; (4) cost per completed FIT; and (5) total organizational cost. Uncertainty analysis investigated potential savings from optimizing staff workflows during FIT outreach. Data were collected in 2012-2014, with analysis conducted 2014-2015. RESULTS: Using POC strategies, 24.0% of patients due for screening completed FIT, versus 42.4% under outreach (18.4% absolute difference). When calculations included patients up-to-date on screening from prior colonoscopy, 41.7% were up-to-date via POC, versus 55.8% for outreach (14.1% absolute difference). POC cost $4.93 per patient, versus $30.43 for outreach ($25.50 difference). Cost per patient screened was $20.60 for POC and $71.84 for outreach ($51.24 difference). Total organizational cost was $3,779 for POC distribution and $23,315 for outreach ($19,536 difference). Outreach costs decreased by approximately one fourth under optimized workflows. CONCLUSIONS: Outreach is an effective, practical, relatively low-cost strategy; costs could be reduced further by optimizing staff workflows. Despite its value, outreach costs more than POC distribution and may be difficult for community health centers to implement under current payment models.


Assuntos
Neoplasias Colorretais/diagnóstico , Centros Comunitários de Saúde/economia , Detecção Precoce de Câncer/economia , Detecção Precoce de Câncer/métodos , Fezes/química , Centros Comunitários de Saúde/organização & administração , Análise Custo-Benefício , Promoção da Saúde/economia , Humanos , Imuno-Histoquímica , Sistemas Automatizados de Assistência Junto ao Leito/economia
8.
Cancer Causes Control ; 26(11): 1685-90, 2015 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-26337733

RESUMO

PURPOSE: We previously found that a multifaceted outreach intervention achieved 82 % annual adherence to colorectal cancer (CRC) screening with fecal occult blood testing (FOBT). This study assessed adherence to FOBT after a second outreach. METHODS: We followed 225 patients in community health centers in Chicago, Illinois, who were randomized to the intervention group. Our primary analysis focused on 124 patients who completed FOBT during the first outreach and were due again for annual FOBT; 90% were Latino, 87% preferred to speak Spanish, and 77% were uninsured. Second outreach consisted of (1) a mailed reminder letter, a free fecal immunochemical test (FIT) with postage-paid return envelope, (2) automated phone and text messages, (3) automated reminders 2 weeks later if the FIT was not returned, and (4) a telephone call after 3 months. Our main outcome was completion of FIT within 6 months of the due date. We also analyzed the proportion of the original 225 patients who were fully screened for CRC over the 2-year study period. RESULTS: A total of 88.7% of patients completed a FIT within 6 months of their second outreach. Over the 2 years since the first outreach, 71.6% of the 225 patients assigned to the intervention group were fully up to date on CRC screening, another 11.1% had been screened suboptimally, and 17.3% were inadequately screened or not screened. CONCLUSIONS: It is possible to achieve high rates of CRC screening over a 2-year period for vulnerable populations using outreach with FIT as a primary strategy.


Assuntos
Neoplasias Colorretais/diagnóstico , Detecção Precoce de Câncer , Programas de Rastreamento , Idoso , Chicago , Centros Comunitários de Saúde , Relações Comunidade-Instituição , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Sangue Oculto , Ensaios Clínicos Controlados Aleatórios como Assunto
9.
AIDS Educ Prev ; 27(3): 240-56, 2015 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-26010315

RESUMO

We evaluated the efficacy of a sexual risk reduction intervention utilizing protection motivation and social cognitive theories to address knowledge, threat and coping appraisals, and condom use intentions among HIV-positive individuals in Nepal. Using a quasi-experimental research design, we assigned 277 participants to intervention (n=146) and control (n=131) groups. The intervention group received six sessions on sexual risk reduction strategies and the control group six sessions on medication adherence, smoking, and mental health. Data were collected at baseline and immediately after the intervention. Results indicate that the sexual risk reduction intervention produced a significant increase in HIV transmission knowledge, perceived threat and coping appraisals, and intentions to use condoms with regular, HIV-positive, and HIV-negative partners. The positive effects of the intervention remained significant after adjusting for baseline scores and other potential confounders. In conclusion, our theory-based sexual risk reduction intervention was effective in improving HIV transmission knowledge, perceived threat and coping appraisals, and condom use intentions. Further studies are needed to evaluate the long-term efficacy of the intervention in increasing protection motivation and maintaining preventive behaviors.


Assuntos
Infecções por HIV/prevenção & controle , Educação em Saúde/métodos , Conhecimentos, Atitudes e Prática em Saúde , Avaliação de Programas e Projetos de Saúde/métodos , Comportamento de Redução do Risco , Comportamento Sexual , Adaptação Psicológica , Adolescente , Adulto , Pesquisa Participativa Baseada na Comunidade , Preservativos/estatística & dados numéricos , Feminino , Infecções por HIV/transmissão , Humanos , Masculino , Pessoa de Meia-Idade , Nepal , Ensaios Clínicos Controlados não Aleatórios como Assunto , Avaliação de Resultados em Cuidados de Saúde , Parceiros Sexuais/psicologia
10.
J Gen Intern Med ; 30(8): 1178-84, 2015 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-25814264

RESUMO

INTRODUCTION: Colorectal cancer (CRC) screening rates are low among vulnerable populations. Fecal immunochemical tests (FITs) are one screening modality with few barriers. Studies have shown that outreach can improve CRC screening, but little is known about its effectiveness among individuals with no CRC screening history. We sought to determine whether outreach increases FIT uptake among patients with no CRC screening history compared to usual care. METHODS: This study was a patient-level randomized controlled trial, including 420 patients who had never completed CRC screening and were eligible for FIT; 66% were female, 62.1% were Latino, and 70.7% were uninsured. The main outcome measure was FIT completion within 6 months of the randomization date. We assessed FIT completion at different time points corresponding to receipt of outreach components. All analyses were re-run with 12-month data. RESULTS: Patients who received outreach were more likely to complete FIT than those in usual care (36.7% vs. 14.8%; p < 0.001). FIT completion was more common among patients with increased clinic visits. The difference in FIT completion between the outreach and usual care groups decreased over time. DISCUSSION: The intervention improved FIT uptake among patients with no CRC screening history. However, the intervention was less effective than in a previous trial targeting patients due for repeat screening. Additional research is needed to determine the best methods for improving CRC screening among this hard-to-reach group.


Assuntos
Neoplasias Colorretais/prevenção & controle , Centros Comunitários de Saúde , Pesquisa Comparativa da Efetividade/métodos , Atenção à Saúde/métodos , Detecção Precoce de Câncer/métodos , Programas de Rastreamento/métodos , Sangue Oculto , Idoso , Feminino , Disparidades nos Níveis de Saúde , Humanos , Masculino , Pessoa de Meia-Idade , Populações Vulneráveis
11.
JAMA Intern Med ; 174(8): 1235-41, 2014 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-24934845

RESUMO

IMPORTANCE: Colorectal cancer (CRC) screening rates are lower among Latinos and people living in poverty. Fecal occult blood testing (FOBT) is one recommended screening modality that may overcome cost and access barriers. However, the ability of FOBT to reduce CRC mortality depends on high rates of adherence to annual screening. OBJECTIVE: To determine whether a multifaceted intervention increases adherence to annual FOBT compared with usual care. DESIGN, SETTING, AND PARTICIPANTS: Patient-level randomized controlled trial conducted in a network of community health centers. Included were 450 patients who had previously completed a home FOBT from March 2011 through February 2012 and had a negative test result: 72% of participants were women; 87% were Latino; 83% stated that Spanish was their preferred language; and 77% were uninsured. INTERVENTIONS: Usual care at participating health centers included computerized reminders, standing orders for medical assistants to give patients home fecal immunochemical tests (FIT), and clinician feedback on CRC screening rates. The intervention group also received (1) a mailed reminder letter, a free FIT with low-literacy instructions, and a postage-paid return envelope; (2) an automated telephone and text message reminding them that they were due for screening and that a FIT was being mailed to them; (3) an automated telephone and text reminder 2 weeks later for those who did not return the FIT; and (4) personal telephone outreach by a CRC screening navigator after 3 months. MAIN OUTCOMES AND MEASURES: Completion of FOBT within 6 months of the date the patient was due for annual screening. RESULTS: Intervention patients were much more likely than those in usual care to complete FOBT (82.2% vs 37.3%; P < .001). Of the 185 intervention patients completing screening, 10.2% completed prior to their due date (intervention was not given), 39.6% within 2 weeks (after initial intervention), 24.0% within 2 to 13 weeks (after automated call/text reminder), and 8.4% between 13 and 26 weeks (after personal call). CONCLUSIONS AND RELEVANCE: This intervention greatly increased adherence to annual CRC screening; most screenings were achieved without personal calls. It is possible to improve annual CRC screening for vulnerable populations with relatively low-cost strategies that are facilitated by health information technologies. TRIAL REGISTRATION: clinicaltrials.gov Identifier: NCT01453894.


Assuntos
Neoplasias Colorretais/diagnóstico , Detecção Precoce de Câncer/estatística & dados numéricos , Hispânico ou Latino/estatística & dados numéricos , Sangue Oculto , Cooperação do Paciente/estatística & dados numéricos , Sistemas de Alerta , Idoso , Chicago , Centros Comunitários de Saúde , Feminino , Humanos , Masculino , Pessoa de Meia-Idade
12.
BMC Health Serv Res ; 13: 153, 2013 Apr 29.
Artigo em Inglês | MEDLINE | ID: mdl-23627550

RESUMO

BACKGROUND: Colorectal cancer (CRC) is common and leads to significant morbidity and mortality. Although screening with fecal occult blood testing (FOBT) or endoscopy has been shown to decrease CRC mortality, screening rates remain suboptimal. Screening rates are particularly low for people with low incomes and members of underrepresented minority groups. FOBT should be done annually to detect CRC early and to reduce CRC mortality, but this often does not occur. This paper describes the design of a multifaceted intervention to increase long-term adherence to FOBT among poor, predominantly Latino patients, and the design of a randomized controlled trial (RCT) to test the efficacy of this intervention compared to usual care. METHODS: In this RCT, patients who are due for repeat FOBT are identified in the electronic health record (EHR) and randomized to receive either usual care or a multifaceted intervention. The usual care group includes multiple point-of-care interventions (e.g., standing orders, EHR reminders), performance measurement, and financial incentives to improve CRC screening rates. The intervention augments usual care through mailed CRC screening test kits, low literacy patient education materials, automated phone and text message reminders, in-person follow up calls from a CRC Screening Coordinator, and communication of results to patients along with a reminder card highlighting when the patient is next due for screening. The primary outcome is completion of FOBT within 6 months of becoming due. DISCUSSION: The main goal of the study is to determine the comparative effectiveness of the intervention compared to usual care. Additionally, we want to assess whether or not it is possible to achieve high rates of adherence to CRC screening with annual FOBT, which is necessary for reducing CRC mortality. The intervention relies on technology that is increasingly widespread and declining in cost, including EHR systems, automated phone and text messaging, and FOBTs for CRC screening. We took this approach to ensure generalizability and allow us to rapidly disseminate the intervention through networks of community health centers (CHCs) if the RCT shows the intervention to be superior to usual care. TRIAL REGISTRATION: ClinicalTrials.gov NCT01453894.


Assuntos
Neoplasias Colorretais/prevenção & controle , Centros Comunitários de Saúde , Detecção Precoce de Câncer , Cooperação do Paciente , Idoso , Colonoscopia/estatística & dados numéricos , Neoplasias Colorretais/diagnóstico , Centros Comunitários de Saúde/organização & administração , Pesquisa Comparativa da Efetividade/métodos , Detecção Precoce de Câncer/métodos , Detecção Precoce de Câncer/estatística & dados numéricos , Humanos , Pessoa de Meia-Idade , Sangue Oculto , Cooperação do Paciente/estatística & dados numéricos , Educação de Pacientes como Assunto/métodos , Projetos de Pesquisa
13.
J Community Health ; 38(5): 829-33, 2013 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-23546555

RESUMO

Annual fecal occult blood testing (FOBT) has the potential to reduce colorectal cancer mortality, but in practice it is challenging to complete FOBT every year. Repeat FOBT adherence may be especially low in community health center (CHC) settings, where many patients face barriers to annual FOBT completion. We conducted a retrospective cohort analysis to investigate adherence to annual FOBT in an urban CHC network that serves a predominantly Spanish-speaking, uninsured adult patient population. This study used data from the two-year period between January 2010 and December 2011, and included adults aged 50-74 who completed a screening FOBT with a negative result during the first 6 months of 2010. We examined whether each patient completed a second FOBT between 9 and 18 months after the initial negative FOBT, and tested whether repeat FOBT adherence was associated with patient characteristics or the number of clinic visits after the initial negative FOBT. Only 69 of 281 included patients completed repeat FOBT (24.6 % adherence), and none of 62 patients (0 %) with 0 clinic visits completed repeat FOBT. We detected no significant differences in adherence by age, sex, preferred language, insurance status, or number of chronic conditions. In multivariable regression, the adjusted relative risk of repeat FOBT was 1.66 (95 % CI 1.09-2.54; p = 0.02) among patients with 3 or more clinic visits (referent: patients with 1-2 visits). The observed low rate of adherence greatly diminishes the effectiveness of FOBT in reducing CRC mortality. Findings demonstrate the need for systems-based interventions that increase adherence without requiring face-to-face encounters.


Assuntos
Centros Comunitários de Saúde/estatística & dados numéricos , Sangue Oculto , Cooperação do Paciente/estatística & dados numéricos , Serviços Urbanos de Saúde/estatística & dados numéricos , Idoso , Neoplasias Colorretais/diagnóstico , Detecção Precoce de Câncer/métodos , Detecção Precoce de Câncer/estatística & dados numéricos , Feminino , Hispânico ou Latino/estatística & dados numéricos , Humanos , Masculino , Pessoas sem Cobertura de Seguro de Saúde/estatística & dados numéricos , Pessoa de Meia-Idade , Cooperação do Paciente/etnologia , Estudos Retrospectivos
14.
J Agric Food Chem ; 61(6): 1373-87, 2013 Feb 13.
Artigo em Inglês | MEDLINE | ID: mdl-23311914

RESUMO

The transition from cold storage to ambient temperature alters apple quality through accelerated softening, flavor and color changes, and development of physiological peel disorders, such as superficial scald, in susceptible cultivars. To reveal global metabolism associated with this transition, the 'Granny Smith' peel metabolome was evaluated during storage of 6 months and shelf life periods. Treatment with the antioxidant diphenylamine (DPA) reduced scald, creating a metabolic contrast with untreated fruit, which developed superficial scald. Superficial scald symptoms developed on control fruit after 120 days of storage, and symptoms progressed following transition to ambient-temperature shelf life. The metabolic profile of control and DPA-treated fruit was divergent after 30 days of cold storage due to differing levels of α-farnesene oxidation products, methyl esters, phytosterols, and other compounds potentially associated with chloroplast integrity and oxidative stress response. Hierarchical cluster analysis revealed coregulation within the volatile synthesis pathway including control of the availability of methyl, propyl, ethyl, acetyl, and butyl alcohol and/or acid moieties for ester biosynthesis. Overall, the application of metabolomics techniques lends new insight into physiological processes leading to cell death and ripening processes that affect fruit flavor, appearance, and overall quality.


Assuntos
Antioxidantes/farmacologia , Membrana Celular/efeitos dos fármacos , Parede Celular/efeitos dos fármacos , Conservação de Alimentos/métodos , Frutas/efeitos dos fármacos , Malus/efeitos dos fármacos , Compostos Orgânicos Voláteis/metabolismo , Membrana Celular/química , Membrana Celular/metabolismo , Parede Celular/química , Parede Celular/metabolismo , Armazenamento de Alimentos , Frutas/química , Frutas/metabolismo , Malus/química , Malus/metabolismo , Temperatura , Compostos Orgânicos Voláteis/química
15.
BMC Health Serv Res ; 11: 227, 2011 Sep 20.
Artigo em Inglês | MEDLINE | ID: mdl-21933435

RESUMO

BACKGROUND: Breast cancer is the most frequent cause of cancer death in women worldwide, but global disparities in breast cancer control persist, due to a lack of a comprehensive breast cancer control strategy in many countries. OBJECTIVES: To identify and compare the need for breast cancer control strategies in Asia, Latin America and the Middle East/North Africa and to develop a common framework to guide the development of national breast cancer control strategies. METHODS: Data were derived from open-ended, semi-structured interviews conducted in 2007 with 221 clinicians, policy makers, and patient advocates; stratified across Asia (n = 97), Latin America (n = 46), the Middle East/North Africa (ME/NA) (n = 39) and Australia and Canada (n = 39). Respondents were identified using purposive and snowballing sampling. Interpretation of the data utilized interpretive phenomenological analysis where transcripts and field notes were coded and analyzed and common themes were identified. Analysis of regional variation was conducted based on the frequency of discussion and the writing of the manuscript followed the RATS guidelines. RESULTS: Analysis revealed four major themes that form the foundation for developing national breast cancer control strategies: 1) building capacity; 2) developing evidence; 3) removing barriers; and 4) promoting advocacy - each specified across five sub-ordinate dimensions. The propensity to discuss most dimensions was similar across regions, but managing advocacy was discussed more frequently (p = 0.004) and organized advocacy was discussed less frequently (p < 0.001) in Australia and Canada. CONCLUSIONS: This unique research identified common themes for the development of breast cancer control strategies, grounded in the experience of local practitioners, policy makers and advocacy leaders across diverse regions. Future research should be aimed at gathering a wider array of experiences, including those of patients.


Assuntos
Neoplasias da Mama/prevenção & controle , Saúde Global , Promoção da Saúde/organização & administração , Prevenção Primária/organização & administração , Adulto , África do Norte , Idoso , Idoso de 80 Anos ou mais , Ásia , Países Desenvolvidos , Países em Desenvolvimento , Feminino , Conhecimentos, Atitudes e Prática em Saúde , Disparidades nos Níveis de Saúde , Disparidades em Assistência à Saúde/estatística & dados numéricos , Humanos , América Latina , Pessoa de Meia-Idade , Oriente Médio , Avaliação das Necessidades , Medição de Risco
16.
Phytochemistry ; 72(11-12): 1328-40, 2011 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-21665233

RESUMO

The chilling conditions of apple cold storage can provoke an economically significant necrotic peel disorder called superficial scald (scald) in susceptible cultivars. Disorder development can be reduced by inhibiting ethylene action or oxidative stress as well as intermittent warming. It was previously demonstrated that scald is preceded by a metabolomic shift that results in altered levels of various classes of triterpenoids, including metabolites with mass spectral features similar to ß-sitosterol. In this study, a key class of phytosterol metabolites was identified. Changes in peel tissue levels of conjugates of ß-sitosterol and campesterol, including acylated steryl glycosides (ASG), steryl glycosides (SG) and steryl esters (SE), as well as free sterols (FS), were determined during the period of scald development. Responses to pre-storage treatment with the ethylene action inhibitor, 1-methylcyclopropene, or an antioxidant (diphenylamine), rapid temperature elevation, and cold acclimation using intermittent warming treatments were evaluated. Diphenylamine, 1-MCP, and intermittent warming all reduced or prevented scald development. ASG levels increased and SE levels decreased in untreated control fruit during storage. Removing fruit from cold storage to ambient temperature induced rapid shifts in ASG and SE fatty acyl moieties from unsaturated to saturated. FS and SG levels remained relatively stable during storage but SG levels increased following a temperature increase after storage. ASG, SE, and SG levels did not increase during 6 months cold storage in fruit subjected to intermittent warming treatment. Overall, the results show that apple peel phytosteryl conjugate metabolism is influenced by storage duration, oxidative stress, ethylene action/ripening, and storage temperature.


Assuntos
Etilenos/metabolismo , Frutas/metabolismo , Malus/metabolismo , Estresse Oxidativo , Fitosteróis/metabolismo , Aclimatação , Antioxidantes/farmacologia , Ciclopropanos/farmacologia , Difenilamina/farmacologia , Etilenos/antagonistas & inibidores , Conservação de Alimentos/métodos , Frutas/efeitos dos fármacos , Malus/efeitos dos fármacos , Fitosteróis/análise , Fitosteróis/química , Doenças das Plantas/prevenção & controle , Sitosteroides/metabolismo , Temperatura
17.
J Health Organ Manag ; 24(4): 343-60, 2010.
Artigo em Inglês | MEDLINE | ID: mdl-21033633

RESUMO

PURPOSE: This paper aims to explore the theoretical and practical management implications of a case involving the falsification of hospital patient waiting lists for elective orthopaedic surgery. DESIGN/METHODOLOGY/APPROACH: This case study is based on qualitative schedule-structured interviews with 20 senior hospital staff (managerial and clinical), including the head of the investigation team, downloads from the hospital website, and internal hospital documentation. Those data were used to construct an event narrative exploring the underlying causes and implications of the incident. FINDINGS: The blame for misconduct pointed at three surgeons, a senior manager, a general manager, an assistant general manager, one administrative staff member, and several organizational factors. In addition to censuring some of those involved, an investigation recommended changes to training and working practices, policies and procedures, governance arrangements, and organization culture, and led to an external evaluation of the hospital board. However, one year later, another similar incident occurred. RESEARCH LIMITATIONS/IMPLICATIONS: This is a single case, and events are viewed through a management lens, the individuals concerned being protected by research ethics considerations. PRACTICAL IMPLICATIONS: By detailing the sequence of events, surrounding conditions, and the reactions of multiple players, this analysis reveals typified responses to incidents of this kind, and the limitations inherent in post-event investigations. If the benefits derived from national targets are to be realized in a manner which commands support from staff at all levels, then greater attention should be paid by managers and regulators to issues of transparency, responsiveness, and honesty. As core dimensions of good governance, managers must be accountable for helping to meet targets, and also for tracking how targets are met, ensuring that resources are made available, and that problematic issues raised are promptly and effectively addressed. ORIGINALITY/VALUE: Studies of organizational misbehaviour are rare in healthcare where the focus often lies with patient deaths and injuries arising from system failures and gross individual misconduct. The analysis in this case explores the organizational conditions that contribute to such incidents.


Assuntos
Documentação , Fraude , Administração Hospitalar , Má Conduta Profissional , Listas de Espera , Procedimentos Cirúrgicos Eletivos , Humanos , Entrevistas como Assunto , Ortopedia , Reino Unido
18.
J Health Organ Manag ; 22(6): 642-51, 2008.
Artigo em Inglês | MEDLINE | ID: mdl-19579576

RESUMO

PURPOSE: The purpose of this article is to advance critical debate in relation to a very critical issue in current healthcare management--namely "patient safety". This is currently a very high profile issue. In its various guises such as clinical governance, integrated governance and healthcare governance the question of avoiding or at least minimising harm to patients is attracting a huge amount of attention. Considerable resources especially within the acute sector are allocated to the problem. But, despite the systematic attention, progress in healthcare compared with certain other sectors is slow and mistakes continue to occur. Hospital acquired infections and clinical errors have become a matter of acute public concern. Evaluations of the health service are critically influenced by adverse judgements on this dimension of care. DESIGN/METHODOLOGY/APPROACH: The authors draw primarily upon relevant literature in order to make sense of recent empirical research in eight acute hospital trusts in the UK. The analysis, however, is relevant to healthcare systems around the world. FINDINGS: The authors reveal how the massive investment in systems, service improvement mechanisms and clinical government regimes may not in themselves be enough. One reason why they may not be enough is that there can be a problem of gaining acceptance and legitimacy. Staff may see such managers as "policing" and "interfering". There is then the danger of a vicious circle--more control but less effective control because of a feeling of alienation. The policing element is at best a final safety net not the prompt for improvement. They then identify six barriers and each is accompanied by a recommendation for its resolution. PRACTICAL IMPLICATIONS: There are a number of implications for practice and for systems reform, which stem from the analysis. Two main recommendations stand out: they need to be handled together. First, the traditional model of the autonomous professional needs to be challenged by subjecting clinical practice to shared clinical governance procedures. Second, and simultaneously, there is a need to attend to underlying values. There is a need to revisit the issue of underpinning values so that clinical values and system-wide/managerial values are congruent rather than separate or even in conflict. At this point, governance and leadership should come together. ORIGINALITY/VALUE: This paper provides useful information from the literature on current healthcare management.


Assuntos
Atitude do Pessoal de Saúde , Administradores Hospitalares , Erros Médicos , Qualidade da Assistência à Saúde , Gestão de Riscos , Tomada de Decisões Gerenciais , Administradores Hospitalares/psicologia , Humanos , Liderança , Erros Médicos/prevenção & controle , Programas Nacionais de Saúde , Autonomia Profissional , Gestão de Riscos/métodos , Responsabilidade Social , Reino Unido
20.
Cancer ; 110(7): 1621-8, 2007 Oct 01.
Artigo em Inglês | MEDLINE | ID: mdl-17868120

RESUMO

Major findings are presented from a workshop on Quality of Life Assessment in Cancer Symptom Management Trials, sponsored by the National Cancer Institute. Data-driven research reports focused on 3 topics, 1) the rationale and utility of health-related quality of life (HRQOL) assessment, 2) conceptual models, and 3) measurement and design issues. Recommendations for including HRQOL assessment cited the potential value of: capturing additional treatment effects (eg, fatigue + depression); describing the patient experience; predicting patient prognosis; identifying potential adverse effects; observing interactions among symptoms; calculating quality adjusted survival and cost-effectiveness; and generating new hypotheses. Recommendations for developing more fully developed conceptual models focused on maintaining clear distinctions among symptoms, function, summary measures of HRQOL, and global HRQOL assessments; identifying symptom clusters; pursuing hypotheses about whether clustering is better explained as symptom-related or as patient-related (genetic predispositions); and gaining a better understanding of the dynamic and reciprocal influences of symptoms on each other. With respect to measurement and design issues, because different HRQOL measures cover different domains with various degrees of sensitivity, there is a need to select measures that are carefully tailored to the study's hypotheses. Finally, there is a growing appreciation that trials must be powered to test for effects on secondary endpoints.


Assuntos
Ensaios Clínicos como Assunto , Neoplasias , Qualidade de Vida , Atividades Cotidianas , Análise por Conglomerados , Análise Custo-Benefício , Medicina Baseada em Evidências , Nível de Saúde , Humanos , Modelos Teóricos , Neoplasias/fisiopatologia , Neoplasias/psicologia , Projetos de Pesquisa , Análise de Sobrevida
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