22 research outputs found

    Dark Matter Spin-Dependent Limits for WIMP Interactions on 19-F by PICASSO

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    The PICASSO experiment at SNOLAB reports new results for spin-dependent WIMP interactions on 19^{19}F using the superheated droplet technique. A new generation of detectors and new features which enable background discrimination via the rejection of non-particle induced events are described. First results are presented for a subset of two detectors with target masses of 19^{19}F of 65 g and 69 g respectively and a total exposure of 13.75 ±\pm 0.48 kgd. No dark matter signal was found and for WIMP masses around 24 GeV/c2^2 new limits have been obtained on the spin-dependent cross section on 19^{19}F of σF\sigma_F = 13.9 pb (90% C.L.) which can be converted into cross section limits on protons and neutrons of σp\sigma_p = 0.16 pb and σn\sigma_n = 2.60 pb respectively (90% C.L). The obtained limits on protons restrict recent interpretations of the DAMA/LIBRA annual modulations in terms of spin-dependent interactions.Comment: Revised version, accepted for publication in Phys. Lett. B, 20 pages, 7 figure

    Understanding the prescription of antidepressants: a Qualitative study among French GPs

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    <p>Abstract</p> <p>Background</p> <p>One-tenth of France's population is prescribed at least one antidepressant, primarily by General Practitioners. The reasons for this high prescription rate remain unclear. One-third of these prescriptions may not comply with clinical practice guidelines, and 20% are potentially unrelated to any psychiatric condition. Our aim was to explore how GPs declare they use antidepressants in daily practice and understand their reasons for prescribing them.</p> <p>Method</p> <p>Six focus groups including a total of 56 rural and urban GPs, with four interviews were performed. The topic guide focused on reasons for prescribing antidepressants in various primary care situations. Phenomenological analysis was performed by four researchers.</p> <p>Results</p> <p>Antidepressants were seen as useful and not harmful. Personal assessment based on experience and feeling determined the GPs' decisions rather than the use of scales. Twenty-four "non-psychiatric" conditions possibly leading to prescription of antidepressants in primary care were found.</p> <p>Conclusions</p> <p>The GPs reported prescribing antidepressants for a wide range of conditions other than depression. The GPs' decision making process is difficult and complex. They seemed to prefer to focus on their difficulties in diagnosing depression rather than on useless overtreatment. Instead of using the guidelines criteria to detect potential cases of useful prescription, physicians tend to use their own tools based on gut feelings, knowledge of the patient and contextual issues.</p

    Factors associated with completion of bowel cancer screening and the potential effects of simplifying the screening test algorithm

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    BACKGROUND: The primary colorectal cancer screening test in England is a guaiac faecal occult blood test (gFOBt). The NHS Bowel Cancer Screening Programme (BCSP) interprets tests on six samples on up to three test kits to determine a definitive positive or negative result. However, the test algorithm fails to achieve a definitive result for a significant number of participants because they do not comply with the programme requirements. This study identifies factors associated with failed compliance and modifications to the screening algorithm that will improve the clinical effectiveness of the screening programme. METHODS: The BCSP Southern Hub data for screening episodes started in 2006–2012 were analysed for participants aged 60–69 years. The variables included age, sex, level of deprivation, gFOBt results and clinical outcome. RESULTS: The data set included 1 409 335 screening episodes; 95.08% of participants had a definitively normal result on kit 1 (no positive spots). Among participants asked to complete a second or third gFOBt, 5.10% and 4.65%, respectively, failed to return a valid kit. Among participants referred for follow up, 13.80% did not comply. Older age was associated with compliance at repeat testing, but non-compliance at follow up. Increasing levels of deprivation were associated with non-compliance at repeat testing and follow up. Modelling a reduction in the threshold for immediate referral led to a small increase in completion of the screening pathway. CONCLUSIONS: Reducing the number of positive spots required on the first gFOBt kit for referral for follow-up and targeted measures to improve compliance with follow-up may improve completion of the screening pathway

    Finishing the euchromatic sequence of the human genome

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    The sequence of the human genome encodes the genetic instructions for human physiology, as well as rich information about human evolution. In 2001, the International Human Genome Sequencing Consortium reported a draft sequence of the euchromatic portion of the human genome. Since then, the international collaboration has worked to convert this draft into a genome sequence with high accuracy and nearly complete coverage. Here, we report the result of this finishing process. The current genome sequence (Build 35) contains 2.85 billion nucleotides interrupted by only 341 gaps. It covers ∼99% of the euchromatic genome and is accurate to an error rate of ∼1 event per 100,000 bases. Many of the remaining euchromatic gaps are associated with segmental duplications and will require focused work with new methods. The near-complete sequence, the first for a vertebrate, greatly improves the precision of biological analyses of the human genome including studies of gene number, birth and death. Notably, the human enome seems to encode only 20,000-25,000 protein-coding genes. The genome sequence reported here should serve as a firm foundation for biomedical research in the decades ahead

    Assessment of quality of life, satisfaction with anticoagulation therapy, and adherence to treatment in patients receiving long-course vitamin K antagonists or direct oral anticoagulants for venous thromboembolism

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    Ingre Keita,1 Isabelle Aubin-Auger,2&ndash;4 Christophe Lalanne,4 Jean-Pierre Aubert,2&ndash;4 Olivier Chassany,2,4 Martin Duracinsky,4 Isabelle Mah&eacute;1,2,4 1Internal Medicine Department, Louis Mourier Hospital, APHP, Colombes, 2Paris 7 University, 3General Medicine Department, Universit&eacute; Paris 7, Paris, 4Recherche Clinique Ville-H&ocirc;pital, M&eacute;thodologies et Soci&eacute;t&eacute; (REMES) EA 7334, Universit&eacute; Paris Diderot, Sorbonne Paris Cit&eacute;, Paris, France Introduction: Direct oral anticoagulants (DOACs) have shown non-inferiority and ease of use compared to vitamin K antagonists (VKA) in the treatment of venous thromboembolism (VTE). No study so far has been directed toward real-life experience of outpatients receiving anticoagulants for VTE in France.Methods: This is an observational descriptive real-life epidemiological study, using three validated questionnaires (Morisky Medication Adherence Scale-8, EQ-5D, and part 2 of the Perception of Anticoagulant Treatment Questionnaire), to assess adherence, quality of life, and satisfaction in 100 VTE outpatients receiving anticoagulation therapy by VKA (primary or switched from DOAC to VKA) or by DOAC (primary or switched from VKA to DOAC).Results: Patients were very much satisfied with their treatment in both DOAC and VKA groups. Despite advantages of DOACs, therapeutic adherence was only moderate. The best adherence scores were observed in the primary VKA switched to DOAC for at least 3 months (S-DOAC) subgroup. Quality of life was better in the DOAC group mainly because of the absence of the requirement for blood testing. Most of the complaints concerned the pain/discomfort dimension in the VKA group and anxiety/depression dimension in the DOAC group.Conclusion: Patients were satisfied with their anticoagulant treatment, especially when they were involved in choosing the anticoagulant, and the treatment suited them. Quality of life of patients in the DOAC group was better than in the VKA group, but adherence remains to be improved. This study highlights the importance of the physician&ndash;patient relationship, pretreatment initiation, and follow-up of any anticoagulation therapy throughout. Keywords: medication adherence, oral anticoagulant, deep venous thrombosis, pulmonary embolism, quality of life, treatment satisfactio

    Real-life experience of quality of life, treatment satisfaction, and adherence in patients receiving oral anticoagulants for atrial fibrillation

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    Micha&euml;l Benzimra,1 B&eacute;atrix Bonnamour,1 Martin Duracinsky,2 Christophe Lalanne,2 Jean-Pierre Aubert,2,3 Olivier Chassany,2,3 Isabelle Aubin-Auger,2,3 Isabelle Mah&eacute;1,2 1Internal Medicine Department, H&ocirc;pital Louis Mourier, APHP, Colombes, France; 2M&eacute;thodologies et Soci&eacute;t&eacute; (REMES) EA 7334, Recherche Clinique Ville-h&ocirc;pital, Universit&eacute; Paris Diderot, Sorbonne Paris Cit&eacute;, Paris, France; 3General Medicine Deparment, Universit&eacute; Paris 7, Paris, France Introduction: Direct oral anticoagulants (DOACs) have shown noninferiority to vitamin&nbsp;K antagonists (VKA) in stroke prevention in patients with atrial fibrillation. DOAC treatment may be less demanding than VKA, improving quality of life. To date, there have been no studies of the real-life experience of outpatients receiving anticoagulation therapy for atrial fibrillation in France.Methods: An observational descriptive real-life epidemiological study used three validated questionnaires (EQ-5D, PACT-Q2, and MMAS-8 French Translation) to assess quality of life, treatment satisfaction, and adherence, respectively, in 200 patients managed on an outpatient basis for atrial fibrillation who were receiving anticoagulation therapy by VKA or DOAC for at least 3 months. Patients were distributed between four groups: primary VKA (P-VKA), switch from VKA to DOAC (S-DOAC), primary DOAC (P-DOAC), and switch from DOAC to VKA (S-VKA).Results: Two hundred patients responded to the questionnaires: 89, 50, 52, and 9 in the P-VKA, S-DOAC, P-DOAC and S-VKA groups, respectively. Only the first three groups were compared statistically, because of the small size of the S-VKA group. Quality of life and satisfaction were good in all three groups, with no significant difference in quality of life but significantly greater satisfaction with respect to the &ldquo;convenience&rdquo; and &ldquo;satisfaction&rdquo; dimensions for DOACs (S-DOAC and P-DOAC groups versus P-VKA group; p&lt;0.001, for both dimensions). Adherence did not significantly differ between groups.Conclusion: The experience of patients under oral anticoagulation therapy for atrial fibrillation managed on an outpatient basis was good, with comparable quality of life under DOACs and VKA, and significantly greater satisfaction under DOACs, without impact on adherence. Taking account of patient preference in &ldquo;shared decision-making&rdquo; for the choice of type of anticoagulant could improve the patients&rsquo; experience of treatment. Keywords: atrial fibrillation, direct oral anticoagulants, vitamin K antagonists, satisfaction, adherence, quality of lif

    Profile of French general practitioners providing opportunistic primary preventive care-an observational cross-sectional multicentre study.

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    International audienceBACKGROUND: Preventive services provided opportunistically by GPs are insufficient. Reasons are most often gathered through GPs' self-reports, rather than through independent observation. OBJECTIVE: To assess with passive observers, the degree to which French GPs opportunistically perform primary preventive care during routine consultation. METHODS: Observational cross-sectional multicentre ancillary study of the French ECOGEN study. The study period extended from 28 November 2011 to 30 April 2012. The inclusion criteria were patients seen by GPs at surgery and home consultations in non-randomized pre-determined half-day blocks per week. The non-inclusion criteria were patient's refusal and consultations initially focused on primary prevention in response to patient's request (ancillary study's specific criterion). Using passive observers, data were collected based on the second version of International Classification of Primary Care. Preventive consultations were defined if at least one problem/diagnosis was considered by consensus as definitely related to primary prevention. For each one of the 128 participating GPs, aggregation of data was performed from all his/her consultations. Determinants of the proportion of preventive consultations per GP were assessed by multivariate linear regression. RESULTS: Considering 19003 consultations, the median proportion of preventive consultations per GP was 14.9% (range: 0-78.3%). It decreased with increased proportion of patients aged 18 or less (P = 0.006), with increased proportion of home visits (P = 0.008) and with increased proportion of consultations lasting under 10 minutes (P = 0.02). None of the GPs' personal characteristics were significantly associated. CONCLUSION: Primary preventive care activity was related to the characteristics of GPs' patients and practice organizational markers and not to GPs' personal characteristics
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