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1.
BMC Public Health ; 24(1): 404, 2024 02 07.
Artículo en Inglés | MEDLINE | ID: mdl-38326802

RESUMEN

BACKGROUND: To inform the development of an online tool to be potentially used in shared decision-making about breast cancer screening, French women were questioned about participation in breast cancer screening, the health professional's role, and their perceptions of the proposed tool. METHODS: We organised focus group discussions with 55 French women. Two different strategies were used to recruit women from high and low socioeconomic backgrounds. We applied both inductive and deductive approaches to conduct a thematic analysis of the discussions. We analysed the responses by using the main determinants from different health behaviour models and compared the two groups. RESULTS: Independently of socioeconomic status, the most important determinant for a woman's participation in breast cancer screening was the perceived severity of breast cancer and the perceived benefits of its early detection by screening. Cues to action reported by both groups were invitation letters; recommendations by health professionals, or group/community activities and public events were reported by women from high and low socioeconomic backgrounds, respectively. Among other positive determinants, women from high socioeconomic backgrounds reported making informed decisions and receiving peer support whereas women from low socioeconomic backgrounds reported community empowerment through group/community events. Fear of cancer was reported as a barrier in both groups. Among other barriers, language issues were reported only by women from low socioeconomic backgrounds; women from high socioeconomic backgrounds reported breast cancer screening-related risks other than overdiagnosis and/or overtreatment. Barriers to accessing the online tool to be developed were mainly reported by women from high socioeconomic backgrounds. CONCLUSION: Limitations in implementing shared decision-making for women from low socioeconomic backgrounds were highlighted. An online tool that is suitable for all women, regardless of socioeconomic status, would provide "on-demand" reliable and tailored information about breast cancer screening and improve access to health professionals and social exchanges.


Asunto(s)
Neoplasias de la Mama , Femenino , Humanos , Neoplasias de la Mama/diagnóstico , Neoplasias de la Mama/prevención & control , Grupos Focales , Detección Precoz del Cáncer , Investigación Cualitativa , Clase Social , Toma de Decisiones , Tamizaje Masivo
3.
Breast ; 59: 193-202, 2021 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-34280610

RESUMEN

Guided by a national cancer plan (2010-19), Morocco made significant investments in improving breast cancer detection and treatment. A breast cancer pattern-of-care study was conducted to document the socio-demographic profiles of patients and tumour characteristics, measure delays in care, and assess the status of dissemination and impact of state-of-the-art management. The retrospective study conducted among 2120 breast cancer patients registered during 2008-17 at the two premier-most oncology centres (Centre Mohammed VI or CM-VI and Institut National d'Oncologie or INO) also measured temporal trends of the different variables. Median age (49 years) and other socio-demographic characteristics of the patients remained constant over time. A significant improvement in coverage of the state-financed health insurance scheme for indigent populations was observed over time. Median interval between onset of symptoms and first medical consultation was 6 months with a significant reduction over time. Information on staging and molecular profile were available for more than 90% and 80% of the patients respectively. Approximately 55% of the patients presented at stage I/II and proportion of triple-negative cancers was 16%; neither showing any appreciable temporal variation. Treatment information was available for more than 90% of the patients; 69% received surgery with chemotherapy and/or radiation. Treatment was tailored to stage and molecular profiles, though breast conservation therapy was offered to less than one-fifth. When compared using the EUSOMA quality indicators for breast cancer management, INO performed better than CM-VI. This was reflected in nearly 25% difference in 5-year disease-free survival for early-stage cancers between the centres.


Asunto(s)
Neoplasias de la Mama , Neoplasias de la Mama/patología , Neoplasias de la Mama/terapia , Supervivencia sin Enfermedad , Femenino , Humanos , Persona de Mediana Edad , Marruecos , Estadificación de Neoplasias , Estudios Retrospectivos , Nivel de Atención
4.
Int J Cancer ; 149(1): 97-107, 2021 07 01.
Artículo en Inglés | MEDLINE | ID: mdl-33533501

RESUMEN

We conducted a study to document the impact of COVID-19 pandemic on cancer screening continuum in selected low- and middle-income countries (LMICs). LMICs having an operational cancer control plan committed to screen eligible individuals were selected. Managers/supervisors of cancer screening programs were invited to participate in an online survey and subsequent in-depth interview. Managers/supervisors from 18 programs in 17 countries participated. Lockdown was imposed in all countries except Brazil. Screening was suspended for at least 30 days in 13 countries, while diagnostic-services for screen-positives were suspended in 9 countries. All countries except Cameroon, Bangladesh, India, Honduras and China managed to continue with cancer treatment throughout the outbreak. The participants rated service availability compared to pre-COVID days on a scale of 0 (no activities) to 100 (same as before). A rating of ≤50 was given for screening services by 61.1%, diagnostic services by 44.4% and treatment services by 22.2% participants. At least 70% participants strongly agreed that increased noncompliance of screen-positive individuals and staff being overloaded or overwhelmed with backlogs would deeply impact screening programs in the next 6 months at least. Although many of the LMICs were deficient in following the "best practices" to minimize service disruptions, at least some of them made significant efforts to improve screening participation, treatment compliance and program organization. A well-coordinated effort is needed to reinitiate screening services in the LMICs, starting with a situational analysis. Innovative strategies adopted by the programs to keep services on-track should be mutually shared.


Asunto(s)
COVID-19/prevención & control , Control de Enfermedades Transmisibles/métodos , Detección Precoz del Cáncer/estadística & datos numéricos , Neoplasias/diagnóstico , SARS-CoV-2/aislamiento & purificación , Encuestas y Cuestionarios/estadística & datos numéricos , Bangladesh , Brasil , COVID-19/epidemiología , COVID-19/virología , Camerún , China , Estudios Transversales , Países en Desarrollo , Detección Precoz del Cáncer/métodos , Honduras , Humanos , India , Neoplasias/terapia , Pandemias , SARS-CoV-2/fisiología
5.
Prev Med ; 143: 106323, 2021 02.
Artículo en Inglés | MEDLINE | ID: mdl-33171178

RESUMEN

Human papillomavirus (HPV) vaccination is safe and efficacious to prevent persistent HPV infection, precancerous anogenital lesions and cervical cancer. However, in countries where vaccination programmes are implemented outside of schools, such as France, reaching high HPV vaccination coverage of the target population is challenging. Many studies have been performed in France to assess cognitions of general practitioners (GPs) regarding HPV vaccination. However, the evidence is not consistent about which cognitions are key. To provide a comprehensive overview, we performed a systematic review of studies conducted in France on GPs' cognitions regarding HPV vaccination and used the reasoned action approach to extract and synthesize data. The systematic search was performed up to July 2020 in Medline via PubMed, PsycINFO, PsycARTICLES, Embase, CINAHL Plus, Web of Science, Pascal and Francis databases. Grey literature was searched for in the French Public Health Database, Cairn. Info, yahoo.fr, and Google Scholar. Twenty-five scientific publications were selected based on eligibility criteria and assessed for quality. Our qualitative synthesis highlights that although 73% of GPs report recommending HPV vaccination, up to 50% would not recommend it because of concerns, including changes in patients' health behaviours and doubts about safety and/or efficacy. GPs' injunctive norms, i.e. trust in institutional information, were shown to be associated positively with GPs' willingness to recommend HPV vaccination. Parents' fears, girls' age, and potential connection with sexuality do not seem to affect GPs' recommendations. These results will inform the development of a professional educational intervention targeting GPs in France.


Asunto(s)
Médicos Generales , Infecciones por Papillomavirus , Vacunas contra Papillomavirus , Neoplasias del Cuello Uterino , Cognición , Femenino , Francia , Humanos , Infecciones por Papillomavirus/prevención & control , Neoplasias del Cuello Uterino/prevención & control , Vacunación
6.
Cancer Epidemiol ; 39 Suppl 1: S139-52, 2015 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-26596722

RESUMEN

In order to update the previous version of the European Code against Cancer and formulate evidence-based recommendations, a systematic search of the literature was performed according to the methodology agreed by the Code Working Groups. Based on the review, the 4th edition of the European Code against Cancer recommends: "Take part in organized cancer screening programmes for: Bowel cancer (men and women); Breast cancer (women); Cervical cancer (women)." Organized screening programs are preferable because they provide better conditions to ensure that the Guidelines for Quality Assurance in Screening are followed in order to achieve the greatest benefit with the least harm. Screening is recommended only for those cancers where a demonstrated life-saving effect substantially outweighs the potential harm of examining very large numbers of people who may otherwise never have, or suffer from, these cancers, and when an adequate quality of the screening is achieved. EU citizens are recommended to participate in cancer screening each time an invitation from the national or regional screening program is received and after having read the information materials provided and carefully considered the potential benefits and harms of screening. Screening programs in the European Union vary with respect to the age groups invited and to the interval between invitations, depending on each country's cancer burden, local resources, and the type of screening test used For colorectal cancer, most programs in the EU invite men and women starting at the age of 50-60 years, and from then on every 2 years if the screening test is the guaiac-based fecal occult blood test or fecal immunochemical test, or every 10 years or more if the screening test is flexible sigmoidoscopy or total colonoscopy. Most programs continue sending invitations to screening up to the age of 70-75 years. For breast cancer, most programs in the EU invite women starting at the age of 50 years, and not before the age of 40 years, and from then on every 2 years until the age of 70-75 years. For cervical cancer, if cytology (Pap) testing is used for screening, most programs in the EU invite women starting at the age of 25-30 years and from then on every 3 or 5 years. If human papillomavirus testing is used for screening, most women are invited starting at the age of 35 years (usually not before age 30 years) and from then on every 5 years or more. Irrespective of the test used, women continue participating in screening until the age of 60 or 65 years, and continue beyond this age unless the most recent test results are normal.


Asunto(s)
Detección Precoz del Cáncer/normas , Neoplasias/diagnóstico , Neoplasias/prevención & control , Guías de Práctica Clínica como Asunto/normas , Femenino , Humanos , Masculino
7.
Cancer Epidemiol ; 39 Suppl 1: S120-38, 2015 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-26589774

RESUMEN

Of the 2,635,000 new cancer cases (excluding non-melanoma skin cancers) occurring in the European Union (EU) in 2012, it is estimated that approximately 185,000 are related to infection with human papillomaviruses (HPVs), hepatitis B and C viruses (HBV and HCV), and Helicobacter pylori (H. pylori). Chronic infection with these agents can lead to cancers of the cervix uteri, liver, and stomach, respectively. Chronic infection with HCV can also lead to B-cell non-Hodgkin lymphoma. Human immunodeficiency virus (HIV) infection continues to be of major public health importance in several EU countries and increases cancer risk via HIV-induced immunosuppression. The fourth edition of the European Code Against Cancer presents recommendations on effective and safe preventive interventions in order to reduce the risk of infection-related cancers in EU citizens. Based on current available evidence, the fourth edition recommends that parents ensure the participation of their children in vaccination programs against HBV (for newborns) and HPV (for girls). In the 'Questions and Answers' (Q&As) section about vaccination and infections in the website for the European Code Against Cancer, individuals who are at risk of chronic HBV or HCV are advised to seek medical advice about testing and obtaining treatment when appropriate. Individuals most at risk of HIV are advised to consult their doctor or healthcare provider to access counselling and, if needed, testing and treatment without delay. Information about H. pylori testing and treatment is also provided as testing might currently be offered in some high-risk areas in Europe. The rationale and supporting evidence for the recommendations on vaccination in the European Code Against Cancer, and for the main recommendations on vaccination and infection in the Q&As, are explained in the present review.


Asunto(s)
Infecciones/complicaciones , Neoplasias/etiología , Neoplasias/prevención & control , Guías de Práctica Clínica como Asunto/normas , Unión Europea , Humanos , Factores de Riesgo
8.
Cancer Epidemiol ; 39 Suppl 1: S11-9, 2015 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-26439654

RESUMEN

The European Code Against Cancer is a set of recommendations to give advice on cancer prevention. Its 4th edition is an update of the 3rd edition, from 2003. Working Groups of independent experts from different fields of cancer prevention were appointed to review the recommendations, supported by a Literature Group to provide scientific and technical support in the assessment of the scientific evidence, through systematic reviews of the literature. Common procedures were developed to guide the experts in identifying, retrieving, assessing, interpreting and summarizing the scientific evidence in order to revise the recommendations. The Code strictly followed the concept of providing advice to European Union citizens based on the current best available science. The advice, if followed, would be expected to reduce cancer risk, referring both to avoiding or reducing exposure to carcinogenic agents or changing behaviour related to cancer risk and to participating in medical interventions able to avert specific cancers or their consequences. The information sources and procedures for the review of the scientific evidence are described here in detail. The 12 recommendations of the 4th edition of the European Code Against Cancer were ultimately approved by a Scientific Committee of leading European cancer and public health experts.


Asunto(s)
Medicina Basada en la Evidencia , Necesidades y Demandas de Servicios de Salud/normas , Investigación sobre Servicios de Salud/normas , Neoplasias/prevención & control , Guías de Práctica Clínica como Asunto/normas , Atención a la Salud , Unión Europea , Humanos
9.
Cancer Epidemiol ; 39 Suppl 1: S1-10, 2015 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-26164654

RESUMEN

This overview describes the principles of the 4th edition of the European Code against Cancer and provides an introduction to the 12 recommendations to reduce cancer risk. Among the 504.6 million inhabitants of the member states of the European Union (EU28), there are annually 2.64 million new cancer cases and 1.28 million deaths from cancer. It is estimated that this cancer burden could be reduced by up to one half if scientific knowledge on causes of cancer could be translated into successful prevention. The Code is a preventive tool aimed to reduce the cancer burden by informing people how to avoid or reduce carcinogenic exposures, adopt behaviours to reduce the cancer risk, or to participate in organised intervention programmes. The Code should also form a base to guide national health policies in cancer prevention. The 12 recommendations are: not smoking or using other tobacco products; avoiding second-hand smoke; being a healthy body weight; encouraging physical activity; having a healthy diet; limiting alcohol consumption, with not drinking alcohol being better for cancer prevention; avoiding too much exposure to ultraviolet radiation; avoiding cancer-causing agents at the workplace; reducing exposure to high levels of radon; encouraging breastfeeding; limiting the use of hormone replacement therapy; participating in organised vaccination programmes against hepatitis B for newborns and human papillomavirus for girls; and participating in organised screening programmes for bowel cancer, breast cancer, and cervical cancer.


Asunto(s)
Guías de Práctica Clínica como Asunto , Garantía de la Calidad de Atención de Salud/normas , Neoplasias del Cuello Uterino/prevención & control , Unión Europea , Femenino , Humanos , Factores de Riesgo , Neoplasias del Cuello Uterino/diagnóstico , Neoplasias del Cuello Uterino/etiología
10.
Eur J Cancer ; 51(2): 241-51, 2015 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-25483785

RESUMEN

Proposals to improve implementation, monitoring and evaluation of breast, cervical and colorectal cancer screening programmes have been developed in a European project involving scientists and professionals experienced in cancer registration (EUROCOURSE). They call for a clear and more active role for cancer registries through better interfaces with cancer screening programmes and adapting data contents of cancer registries for evaluation purposes. Cancer registries are recognised as essential for adequate evaluation of cancer screening programmes, but they are not involved in screening evaluation in several European countries. This is a key barrier to improving the effectiveness of programmes across Europe. The variation in Europe in the implementation of cancer screening offers a unique opportunity to learn from best practices in collaboration between cancer registries and screening programmes. Population-based cancer registries have experience and tools in collecting and analysing relevant data, e.g. for diagnostic and therapeutic determinants of mortality. In order to accelerate improvements in cancer control we argue that cancer registries should take co-responsibility in promoting effective screening evaluation in Europe. Additional investments are vital to further development of infrastructures and activities for screening evaluation and monitoring in the national settings and also at the pan-European level. The EUROCOURSE project also aimed to harmonise implementation of the European quality assurance guidelines for cancer screening programmes across Europe through standardising routine data collection and analysis, and definitions for key performance indicators for screening registers. Data linkage between cancer and screening registers and other repositories of demographic data and cause of death and where available clinical registers is key to implementing the European screening standards and thereby reducing the burden of disease through early detection. Greater engagement of cancer registries in this collaborative effort is also essential to develop adequate evaluation of innovations in cancer prevention and care.


Asunto(s)
Detección Precoz del Cáncer/métodos , Neoplasias/diagnóstico , Vigilancia de la Población/métodos , Sistema de Registros/estadística & datos numéricos , Neoplasias de la Mama/diagnóstico , Neoplasias de la Mama/terapia , Neoplasias Colorrectales/diagnóstico , Neoplasias Colorrectales/terapia , Detección Precoz del Cáncer/normas , Europa (Continente) , Femenino , Humanos , Neoplasias/terapia , Guías de Práctica Clínica como Asunto/normas , Neoplasias del Cuello Uterino/diagnóstico , Neoplasias del Cuello Uterino/terapia
11.
Int J Cancer ; 130(12): 2961-73, 2012 Jun 15.
Artículo en Inglés | MEDLINE | ID: mdl-21792895

RESUMEN

The International Colorectal Cancer Screening Network was established in 2003 to promote best practice in the delivery of organized colorectal cancer screening programs. To facilitate evaluation of such programs, we defined a set of universally applicable colorectal cancer screening measures and indicators. To test the feasibility of data collection, we requested data on these variables and basic program characteristics from 26 organized full programs and 9 pilot programs in 24 countries. The size of the target population for each program varied considerably from a few thousand to 36 million. The majority of programs used fecal occult blood tests for primary screening, with more using guaiac than immunochemical tests. There was wide variation in the ability of screening programs to report the requested measures and in the values reported. In general, pilot programs were more likely to provide screening measure values than were full programs. As expected, detection rates for polyps and neoplasia were substantially higher in programs screening with endoscopy than in those using fecal occult blood tests. It is hoped that the screening measures and indicators, once revised in the light of this survey, will be adopted and used by existing programs and those in the early planning stages, allowing international comparison with the goal of improved colorectal cancer screening quality.


Asunto(s)
Neoplasias Colorrectales/diagnóstico , Neoplasias Colorrectales/prevención & control , Detección Precoz del Cáncer/métodos , Detección Precoz del Cáncer/normas , Guayaco , Humanos , Tamizaje Masivo/métodos , Tamizaje Masivo/normas , Sangre Oculta , Estándares de Referencia
12.
J Med Screen ; 17(3): 152-7, 2010.
Artículo en Inglés | MEDLINE | ID: mdl-20956726

RESUMEN

The International Colorectal Cancer Screening Network (ICRCSN) is a global consortium of initiatives delivering organized colorectal cancer (CRC) screening to their populations. The aim of the Network is to promote improvements in quality assurance (QA) and programme evaluation to maximize the benefit and to minimize the risk associated with CRC screening. ICRCSN currently includes 41 member initiatives from 27 countries. The ICRCSN held its second international meeting in Oxford in September 2008 with representatives from 24 countries. This report summarizes the presentations and discussions, the feedback from participants on their current and future needs and the potential role of the ICRCSN in supporting those needs.


Asunto(s)
Neoplasias Colorrectales/diagnóstico , Detección Precoz del Cáncer/normas , Tamizaje Masivo/normas , Humanos , Tamizaje Masivo/métodos
13.
Mol Cell Biol ; 23(21): 7667-77, 2003 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-14560012

RESUMEN

Regulation of protein tyrosine kinases (PTKs) by tyrosine phosphorylation is well recognized; in fact, nearly all PTKs require phosphorylation of tyrosine residues in their "activation loop" for catalytic activity. In contrast, the phosphorylation of PTKs on serine and threonine residues has not been studied nearly as much. We report that the ZAP-70 PTK contains predominately phosphoserine in normal T lymphocytes as well as in Jurkat T leukemia cells. We have identified one site of phosphorylation as Ser-520 and find this site to be important for the recruitment and activation of ZAP-70 in T cells. Mutant ZAP-70-S520A had reduced ability to autophosphorylate and to mediate antigen receptor-induced interleukin 2 gene activation and was not enriched at the plasma membrane. These defects were rescued by addition of a myristylation signal to the N terminus of ZAP-70-S520A to force its plasma membrane and lipid raft localization. We conclude that phosphorylation of ZAP-70 at Ser-520 plays an important role in the correct localization of ZAP-70 and in priming ZAP-70 for its acute recruitment and activation upon antigen receptor ligation.


Asunto(s)
Membrana Celular/metabolismo , Proteínas Tirosina Quinasas/metabolismo , Serina/metabolismo , Linfocitos T/metabolismo , Secuencia de Aminoácidos , Animales , Células COS , Membrana Celular/química , Activación Enzimática , Humanos , Interleucina-2/genética , Interleucina-2/metabolismo , Células Jurkat , Datos de Secuencia Molecular , Mapeo Peptídico , Fosforilación , Regiones Promotoras Genéticas , Proteínas Tirosina Quinasas/genética , Transducción de Señal/fisiología , Linfocitos T/enzimología , Activación Transcripcional , Tirosina/metabolismo , Proteína Tirosina Quinasa ZAP-70
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