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Detection Program (detection + program)

Distribution by Scientific Domains
Medical Sciences85%

Kinds of Detection Program

  • early detection program
    		•

    Selected Abstracts

    Estimating personal costs incurred by a woman participating in mammography screening in the National Breast and Cervical Cancer Early Detection Program,,

    CANCER, Issue 3 2008
    Donatus U. Ekwueme PhD
    Abstract BACKGROUND. The National Breast and Cervical Cancer Early Detection Program (NBCCEDP) covers the direct clinical costs of breast and cervical cancer screening and diagnostic follow-up for medically underserved, low-income women. Personal costs are not covered. In this report, the authors estimated personal costs per woman participating in NBCCEDP mammography screening by race/ethnicity and also estimated lifetime personal costs (ages 50-74 years). METHODS. A decision analysis model was constructed and parameterized by using empiric data from a retrospective cohort survey of mammography rescreening among women ages 50 years to 64 years who participated in the NBCCEDP. Data from 1870 women were collected from 1999 to 2000. The model simulated the flow of resources incurred by a woman participating in the NBCCEDP. The analysis was stratified by annual income into 2 scenarios: Scenario 1, <$10,000; and Scenario 2, from $10,000 to <$20,000. Sensitivity analyses were conducted to appraise uncertainty, and all costs were standardized to 2000 U.S. dollars. RESULTS. In Scenario 1, for all races/ethnicities, a woman incurred a 1-time cost of $17 and a discounted lifetime cost of $108 for 10 screens and $262 for 25 screens; in Scenario 2, these amounts were $31 and from $197 to $475, respectively. In both scenarios, a non-Hispanic white woman incurred the highest cost. The sensitivity analyses revealed that >70% of cost incurred was attributable to opportunity cost. CONCLUSIONS. Capturing and quantifying personal costs will help ascertain the total cost (ie, societal cost) of providing mammography screening to a medically underserved, low-income woman participating in a publicly funded cancer screening program and, thus, will help determine the true cost-effectiveness of such programs. Cancer 2008. Published 2008 by the American Cancer Society. [source]

    Baseline profiles of adolescent vs. adult-onset first-episode psychosis in an early detection program

    ACTA PSYCHIATRICA SCANDINAVICA, Issue 6 2009
    I. Joa
    Objective:, Psychotic disorders often start in adolescence. We aim to investigate premorbid and baseline differences characterizing patients with an onset of psychosis in adolescence versus adulthood. Method:, We compare first-episode, DSM-IV non-affective psychosis with onset before (n = 43) and after (n = 189) 18 years on duration of untreated psychosis (DUP), level of symptoms, suicidal behaviour, and other baseline clinical and demographic characteristics. Results:, Adolescent onset patients had poorer premorbid functioning, a longer DUP, higher suicidality, and more depressive symptoms. They also had better cognition, fewer psychotic symptoms, and were more likely to be treated on an out-patient basis. Conclusion:, Adolescents with first-episode psychosis may have a slower and more silent, i.e. insidious onset, and are at risk of experiencing longer treatment delays than adults. They fit the description of what used to be labeled process (versus reactive) schizophrenia. [source]

    Accuracy of computer-automated caries detection in digital radiographs compared with human observers

    EUROPEAN JOURNAL OF ORAL SCIENCES, Issue 3 2002
    Ann Wenzel
    The aim of this study was to compare diagnostic accuracy of a caries detection program with that of human observers. A total of 190 extracted teeth were radiographed with two Trophy RVG (RadioVisioGraphy) digital sensor systems. Four observers scored the approximal surfaces in all images on a disease severity scale. Each observer thereafter used the Logicon Caries Detector (LCD) program to analyse the surfaces in the digital images and recorded their outcome. To determine the true absence or presence of caries, histological validation was used. Sensitivities, specificities, positive and negative predictive values were calculated and differences between the diagnostic methods tested. Specificities for the outcome with the LCD were significantly lower for three observers than when they themselves assessed the RVG images and, correspondingly, the positive predictive values were lower for the LCD outcome for three of the observers. Sensitivity was also lower for two observers on the diagnostic threshold caries in dentine. It was concluded that the automated caries detection program is less accurate than human observers in detecting approximal caries lesions. [source]

    Determination of basic azaarenes in aviation kerosene by solid-phase extraction and HPLC-fluorescence detection

    JOURNAL OF SEPARATION SCIENCE, JSS, Issue 12 2009
    Elaine Rocha da Luz
    Abstract SPE in combination with HPLC and fluorescence detection has been used for sensitive determination of six basic azaarenes (7,8-benzoquinoline, 7,9-dimethylbenz[c]acridine, 9-amino-1,2,3,4-tetrahydroacridine, 9-methylacridine, acridine, and dibenz[a,j]acridine) in aviation kerosene (jet fuel). SPE was performed in a single step using a strong cation exchange sorbent. The HPLC system consisted of C18 column with a selected detection program of optimal ,exc and ,em. A gradient elution with ACN and phosphate buffer (pH 6.5) at a flow rate of 1 mL/min allowed efficient and fast separation of azaarenes within 15 min. The LOD and LOQ values (S/N ratio 3:1 and 10:1, respectively) were between 0.0013 and 0.021 and from 0.0044 to 0.072 ng per injection. The calibration curves showed linear behavior from the LOQ to 250 ,g/L (r2 >0.99). For the spiked concentration of 6.0 ,g/L, recoveries were from 92 to 107% for jet fuel samples, except for 9-amino-1,2,3,4-tetrahydroacridine, which presented 68% recovery. The proposed method was applied to the quantification of those six basic azaarenes in one commercial kerosene and in three aviation kerosene samples. The presence of 7,8-benzoquinoline (up to 3.2 ,g/L) and dibenzo[a,j]acridine (up to 6.3 ,g/L) was confirmed in aviation kerosene. [source]

    Effect of Social Class Disparities on Disease Stage, Quality of Treatment and Survival Outcomes in Breast Cancer Patients from Developing Countries

    THE BREAST JOURNAL, Issue 4 2008
    Zeba Aziz MD
    Abstract:, To assess the relationship between social class disparities on disease stage on presentation, quality of treatment, and survival outcome of breast cancer patients in Pakistan and compare our data with SEER (Surveillance, Epidemiology, and End Results) data from US on white and African-American women to evaluate differences in disease stage and survival outcomes. Patients were evaluated for age, tumor size, grade, receptor status, stage, and 5-year survival and were compared with SEER data. Socio-economic status was evaluated with financial income. Patients were divided in poor and middle/high groups. Excellent and comparable 5-year survival with SEER data was observed with localized disease in all groups from different strata. Advanced disease was more common in the disadvantaged group with negligible 5-year survivals. Development and implementation of early detection programs, public awareness, and clinical and breast self examination that are more pragmatic in the settings of countries with limited resources are essential. [source]

    EVER Lecture: Can uveal melanoma be conquered?

    ACTA OPHTHALMOLOGICA, Issue 2007
    T KIVELÄ
    The deadly natural history of uveal melanoma was fully described, unknowingly, in a well known English artist in 1792 and soon thereafter in an unknown Scottish woman around 1808. It became a well recognised entity much later, by 1868. Today, with the exception of being able to save the eye of their patient, ocular oncologists managing patients with uveal melanoma find themselves in essentially the same situation than their forebears: mortality rates have not noticeably decreased and metastatic melanoma continues to be the "hideous picture of disease" that it was 150 years ago. Metastatic melanoma is the single overwhelming cause of death in patients with uveal melanoma, and no consistently effective treatment is known for disseminated disease. One reason for this unhappy state of affairs is that patients formerly were dismissed after enucleation until they presented with advanced metastasis to an oncologist who did not recognise uveal melanoma as a disease very different from cutaneous melanoma. The advent of ocular oncology has led to rational early detection programs for subclinical metastasis, validated staging of metastatic disease, and first controlled clinical trials of managing metastases with therapies specifically aimed against this cancer. Basic research highlights uveal melanoma as a typically slowly growing, early metastasising cancer, and staging, grading and typing of primary tumours is leading to rational assignment of patients to follow-up and adjuvant treatment trials, which hopefully will improve their survival rate. The current understanding is that, by the time the eye becomes symptomatic, uveal melanomas prone to metastasis already have seeded micrometastases, which need to be kept under control if we are to eventually conquer this disease. [source]