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Showing papers on "Mass screening published in 2003"


Journal ArticleDOI
TL;DR: The construct and criterion validity of the PHQ-2 make it an attractive measure for depression screening, and likelihood ratio and receiver operator characteristic analysis identified a PHZ-2 score of 3 as the optimal cutpoint for screening purposes.
Abstract: Background. A number of self-administered questionnaires are available for assessing depression severity, including the 9-item Patient Health Questionnaire depression module (PHQ-9). Because even briefer measures might be desirable for use in busy clinical settings or as part of comprehensive health

4,401 citations


Journal ArticleDOI
TL;DR: The brevity and accuracy of the K6 and K10 scales make them attractive screens for SMI, and routine inclusion of either scale in clinical studies would create an important, and heretofore missing, crosswalk between community and clinical epidemiology.
Abstract: Background Public Law 102-321 established a block grant for adults with "serious mental illness" (SMI) and required the Substance Abuse and Mental Health Services Administration (SAMHSA) to develop a method to estimate the prevalence of SMI. Methods Three SMI screening scales were developed for possible use in the SAMHSA National Household Survey on Drug Abuse: the Composite International Diagnostic Interview Short-Form (CIDI-SF) scale, the K10/K6 nonspecific distress scales, and the World Health Organization Disability Assessment Schedule (WHO-DAS). An enriched convenience sample of 155 respondents was administered all screening scales followed by the 12-month Structured Clinical Interview for DSM-IV and the Global Assessment of Functioning (GAF). We defined SMI as any 12-month DSM-IV disorder, other than a substance use disorder, with a GAF score of less than 60. Results All screening scales were significantly related to SMI. However, neither the CIDI-SF nor the WHO-DAS improved prediction significantly over the K10 or K6 scales. The area under the receiver operating characteristic curve of SMI was 0.854 for K10 and 0.865 for K6. The most efficient screening scale, K6, had a sensitivity (SE) of 0.36 (0.08) and a specificity of 0.96 (0.02) in predicting SMI. Conclusions The brevity and accuracy of the K6 and K10 scales make them attractive screens for SMI. Routine inclusion of either scale in clinical studies would create an important, and heretofore missing, crosswalk between community and clinical epidemiology.

4,170 citations


Journal ArticleDOI
TL;DR: The term "vulnerable patient" may be more appropriate and is proposed now for the identification of subjects with high likelihood of developing cardiac events in the near future and a quantitative method for cumulative risk assessment of vulnerable patients needs to be developed.
Abstract: Atherosclerotic cardiovascular disease results in >19 million deaths annually, and coronary heart disease accounts for the majority of this toll. Despite major advances in treatment of coronary heart disease patients, a large number of victims of the disease who are apparently healthy die suddenly without prior symptoms. Available screening and diagnostic methods are insufficient to identify the victims before the event occurs. The recognition of the role of the vulnerable plaque has opened new avenues of opportunity in the field of cardiovascular medicine. This consensus document concludes the following. (1) Rupture-prone plaques are not the only vulnerable plaques. All types of atherosclerotic plaques with high likelihood of thrombotic complications and rapid progression should be considered as vulnerable plaques. We propose a classification for clinical as well as pathological evaluation of vulnerable plaques. (2) Vulnerable plaques are not the only culprit factors for the development of acute coronary syndromes, myocardial infarction, and sudden cardiac death. Vulnerable blood (prone to thrombosis) and vulnerable myocardium (prone to fatal arrhythmia) play an important role in the outcome. Therefore, the term "vulnerable patient" may be more appropriate and is proposed now for the identification of subjects with high likelihood of developing cardiac events in the near future. (3) A quantitative method for cumulative risk assessment of vulnerable patients needs to be developed that may include variables based on plaque, blood, and myocardial vulnerability. In Part I of this consensus document, we cover the new definition of vulnerable plaque and its relationship with vulnerable patients. Part II of this consensus document focuses on vulnerable blood and vulnerable myocardium and provide an outline of overall risk assessment of vulnerable patients. Parts I and II are meant to provide a general consensus and overviews the new field of vulnerable patient. Recently developed assays (eg, C-reactive protein), imaging techniques (eg, CT and MRI), noninvasive electrophysiological tests (for vulnerable myocardium), and emerging catheters (to localize and characterize vulnerable plaque) in combination with future genomic and proteomic techniques will guide us in the search for vulnerable patients. It will also lead to the development and deployment of new therapies and ultimately to reduce the incidence of acute coronary syndromes and sudden cardiac death. We encourage healthcare policy makers to promote translational research for screening and treatment of vulnerable patients.

2,719 citations


Journal ArticleDOI
TL;DR: The MMSE is an excellent screening instrument and definitive rules are necessary for comparison purposes and it is proposed that its uniform application in Brazil should be proposed.
Abstract: Modificacoes no mini-exame do estado mental (MEM) foram sugeridas anteriormente em nosso meio. Neste artigo relatamos sugestoes para aplicacao uniforme deste instrumento. METODO: Avaliamos 433 individuos saudaveis sem queixas de memoria atraves do MEM tendo seu desempenho sido avaliado quanto as variaveis demograficas. As modificacoes propostas foram detalhadamente descritas. RESULTADOS: A escolaridade foi o principal fator que influenciou o desempenho dos individuos. Na analise de variância entre os grupos de escolaridade obtivemos F(4,425)=100,45, p<0,0001. Os escores medianos por escolaridade foram: para analfabetos, 20; para idade de 1 a 4 anos, 25; de 5 a 8 anos, 26,5; de 9 a 11 anos, 28; para individuos com escolaridade superior a 11 anos, 29. CONCLUSAO: Sugerimos o uso desta versao para uniformizacao dos resultados em nosso meio. Sua aplicabilidade revelou-se boa para ambientes hospitalar, ambulatorial e para estudo populacionais.

2,020 citations


Journal ArticleDOI
TL;DR: In this paper, two new screening scales for psychological distress, the K6 and K10, have been developed but their relative efficiency has not been evaluated in comparison with existing scales.
Abstract: Background. Two new screening scales for psychological distress, the K6 and K10, have been developed but their relative efficiency has not been evaluated in comparison with existing scales.Method. The Australian National Survey of Mental Health and Well-Being, a nationally representative household survey, administered the WHO Composite International Diagnostic Interview (CIDI) to assess 30-day DSM-IV disorders. The K6 and K10 were also administered along with the General Health Questionnaire (GHQ-12), the current de facto standard of mental health screening. Performance of the three screening scales in detecting CIDI/DSM-IV mood and anxiety disorders was assessed by calculating the areas under receiver operating characteristic curves (AUCs). Stratum-Specific Likelihood Ratios (SSLRs) were computed to help produce individual-level predicted probabilities of being a case from screening scale scores in other samples.Results. The K10 was marginally better than the K6 in screening for CIDI/DSM-IV mood and anxiety disorders (K10 AUC: 0·90, 95%CI: 0·89–0·91 versus K6 AUC: 0·89, 95%CI: 0·88–0·90), while both were significantly better than the GHQ-12 (AUC: 0·80, 95%CI: 0·78–0·82). The SSLRs of the K10 and K6 were more informative in ruling in or out the target disorders than those of the GHQ-12 at both ends of the population spectrum. The K6 was more robust than the K10 to subsample variation.Conclusions. While the K10 might outperform the K6 in screening for severe disorders, the K6 is preferred in screening for any DSM-IV mood or anxiety disorder because of its brevity and consistency across subsamples. Precision of individual-level prediction is greatly improved by using polychotomous rather than dichotomous classification.

1,244 citations


Journal ArticleDOI
TL;DR: Community screening programmes based on multi-informant SDQs could potentially increase the detection of child psychiatric disorders, thereby improving access to effective treatments, and reducing the number of patients going undetected.
Abstract: Child psychiatric disorders are common and treatable, but often go undetected and therefore remain untreated. To assess the Strengths and Difficulties Questionnaire (SDQ) as a potential means for improving the detection of child psychiatric disorders in the community, SDQ predictions and independent psychiatric diagnoses were compared in a community sample of 7984 5-15 year olds from the 1999 British Child Mental Health Survey. Multi-informant (parents, teachers, older children) SDQs identified individuals with a psychiatric diagnosis with a specificity of 94.6% (95% Cl, 94.1-95.1%) and a sensitivity of 63.3% (59.7-66.9%). The questionnaires identified over 70% of individuals with conduct, hyperactivity, depressive, and some anxiety disorders, but fewer than 50% of individuals with specific phobias, separation anxiety and eating disorders. Sensitivity was substantially poorer with single-informant rather than multi-informant SDQs. Community screening programmes based on multi-informant SDQs could potentially increase the detection of child psychiatric disorders, thereby improving access to effective treatments.

920 citations


Journal Article
TL;DR: A new class of molecular specific contrast agents for vital reflectance imaging based on gold nanoparticles attached to probe molecules with high affinity for specific cellular biomarkers is described and it is shown that gold conjugates can be delivered topically for imaging throughout the whole epithelium.
Abstract: Recent developments in photonic technology provide the ability to noninvasively image cells in vivo; these new cellular imaging technologies have the potential to dramatically improve the prevention, detection, and therapy of epithelial cancers. Endoscope-compatible microscopies, such as optical coherence tomography and reflectance confocal microscopy, image reflected light, providing a three-dimensional picture of tissue microanatomy with excellent spatial resolution (1-10 micro m). However, their ability to image molecular biomarkers associated with cancer is limited. Here, we describe a new class of molecular specific contrast agents for vital reflectance imaging based on gold nanoparticles attached to probe molecules with high affinity for specific cellular biomarkers. The application of gold bioconjugates for vital imaging of precancers is demonstrated using cancer cell suspensions, three-dimensional cell cultures, and normal and neoplastic fresh cervical biopsies. We show that gold conjugates can be delivered topically for imaging throughout the whole epithelium. These contrast agents have potential to extend the ability of vital reflectance microscopies for in vivo molecular imaging. They can potentially enable combined screening, detection, and therapy of disease using inexpensive imaging systems; such tools could allow mass screening of diseases such as cancer in resource-poor settings.

900 citations


Journal ArticleDOI
TL;DR: In this article, the Mini-Cog, a brief cognitive screening test, was used in an epidemiological study of dementia in older Americans, and the results showed that it was as effective in detecting dementia as longer screening and assessment instruments.
Abstract: OBJECTIVES: To test the Mini-Cog, a brief cognitive screening test, in an epidemiological study of dementia in older Americans. DESIGN: A population-based post hoc examination of the sensitivity and specificity of the Mini-Cog for detecting dementia in an existing data set. SETTING: The Monongahela Valley in Western Pennsylvania. PARTICIPANTS: A random sample of 1,119 older adults enrolled in the Monongahela Valley Independent Elders Survey (MoVIES). MEASUREMENTS: The effectiveness of the Mini-Cog in detecting independently diagnosed dementia was compared with that of the Mini-Mental State Examination (MMSE) and a standardized neuropsychological battery. RESULTS: The Mini-Cog, scored by an algorithm as ‘‘possibly impaired’’ or ‘‘probably normal,’’ and the MMSE, at a cutpoint of 25, had similar sensitivity (76% vs 79%) and specificity (89% vs 88%) for dementia, comparable with that achieved using a conventional neuropsychological battery (75% sensitivity, 90% specificity). CONCLUSION: When applied post hoc to an existing population, the Mini-Cog was as effective in detecting dementia as longer screening and assessment instruments. Its brevity is a distinct advantage when the goal is to improve identification of older adults in a population who may be cognitively impaired. Prior evidence of good performance in a multiethnic community-based sample further supports its validity in the ethnolinguistically diverse populations of the United States in which widely used cognitive screens often fail. J Am Geriatr Soc 51:1451–1454, 2003.

856 citations


Journal ArticleDOI
TL;DR: A critical systematic review of the available literature on the clinical and economic burden of bladder cancer in developed countries, with a focus on the cost effectiveness of interventions aimed at reducing that burden, suggests that non-surgical treatment strategies for the management of invasive disease aiming at bladder preservation may not be cost effective.
Abstract: The aim of this paper was to conduct a critical systematic review of the available literature on the clinical and economic burden of bladder cancer in developed countries, with a focus on the cost effectiveness of interventions aimed at reducing that burden.Forty-four economic studies were included in the review. Because of long- term survival and the need for lifelong routine monitoring and treatment, the cost per patient of bladder cancer from diagnosis to death is the highest of all cancers, ranging from 96000-187000 US dollars (2001 values) in the US. Overall, bladder cancer is the fifth most expensive cancer in terms of total medical care expenditures, accounting for almost 3.7 billion US dollars (2001 values) in direct costs in the US. Screening for bladder cancer in the general population is currently not recommended. The economic value of relatively new and less expensive urine assays and molecular urinary tumour markers has not been assessed. However, the literature suggests that screening patients suspected of having bladder cancer and using less invasive diagnostic procedures is cost effective. Very few cost-effectiveness studies have evaluated intravesical therapies such as bacillus Calmette-Guerin and mitomycin in the management of superficial disease and no robust recommendations can be drawn. Economic analyses suggest that non-surgical treatment strategies for the management of invasive disease aiming at bladder preservation may not be cost effective, because they have not consistently demonstrated survival benefits and do not eliminate the need for subsequent radical cystectomy. The literature suggests that the current conventional frequent follow-up and monitoring of patients can be cost effectively replaced by less frequent and less invasive monitoring, and should rely more heavily on intravesical chemotherapy to reduce the need for cystoscopies. Bladder cancer is a fairly common and costly malignancy. Nevertheless, the existing literature only contributes marginally to our knowledge concerning the burden of bladder cancer and the economic value of various interventions. The limited value of the literature in this area may be attributed to (i) being published as abstracts rather than full peer-reviewed evaluations; (ii) employing questionable methodologies; and (iii) being in many cases nearly obsolete, rendering them less relevant to, if not in conflict with, current clinical practice. Consequently, opportunities exist to conduct meaningful economic research in all areas of the management of bladder cancer, including screening, diagnosis, follow-up and treatment, especially with respect to new and innovative pharmaceutical and other technologies.

746 citations


Journal ArticleDOI
TL;DR: It is shown that a substantial number of pregnant women screened in obstetrics settings have significant symptoms of depression, and most of them are not being monitored in treatment during this vulnerable time.
Abstract: Objectives: This study aimed to describe the prevalence of depressive symptomatology during pregnancy when seen in obstetric settings, the extent of treatment in this population, and specific risk factors associated with mood symptoms in pregnancy. Methods: A total of 3472 pregnant women age 18 and older were screened while waiting for their prenatal care visits in 10 obstetrics clinics using a brief (10 minute) screening questionnaire. This screen measured demographics, tobacco and alcohol (TWEAK problem alcohol use screening measure), and depression measures, including the Center for Epidemiological Studies-Depression scale (CES-D), use of antidepressant medications, past history of depression, and current treatment (i.e., medications, psychotherapy, or counseling) for depression. Results: Of women screened, 20% (n = 689) scored above the cutoff score on the CES-D, and only 13.8% of those women reported receiving any formal treatment for depression. Past history of depression, poorer overall health, gre...

711 citations


Journal ArticleDOI
TL;DR: A meta-analysis of published data suggests that HSILs infected with HPV16, 18 and 45 preferentially progress to SCC, which may have implications for follow-up protocols of future HPV-based cervical cancer screening programmes and for HPV vaccine trials.
Abstract: Particular types of human papillomavirus (HPV) infection may preferentially progress from high-grade squamous intraepithelial lesions (HSIL) to squamous cell carcinoma of the cervix (SCC). We performed a meta-analysis of published data to compare HPV type distribution in HSIL and SCC. HPV16, 18 and 45 were each more prevalent in SCC than HSIL, whereas the reverse was true for other oncogenic types including HPV31, 33, 52 and 58. These data suggest that HSILs infected with HPV16, 18 and 45 preferentially progress to SCC. This may have implications for follow-up protocols of future HPV-based cervical cancer screening programmes and for HPV vaccine trials.

Journal ArticleDOI
TL;DR: CT can depict early-stage lung cancers and the rate of benign nodule detection is high, and six hundred ninety-six additional findings of clinical importance were identified.
Abstract: PURPOSE: To evaluate a large cohort of patients at high risk for lung cancer by using screening with low-dose spiral computed tomography (CT) of the chest. MATERIALS AND METHODS: A prospective cohort study was performed with 1,520 individuals aged 50 years or older who had smoked 20 pack-years or more. Participants underwent three annual low-dose CT examinations of the chest and upper abdomen. Characteristics of pulmonary nodules and additional findings were tabulated and analyzed. RESULTS: Two years after baseline CT scanning, 2,832 uncalcified pulmonary nodules were identified in 1,049 participants (69%). Forty cases of lung cancer were diagnosed: 26 at baseline (prevalence) CT examinations and 10 at subsequent annual (incidence) CT examinations. CT alone depicted 36 cases; sputum cytologic examination alone, two. There were two interval cancers. Cell types were as follows: squamous cell tumor, seven; adenocarcinoma or bronchioloalveolar carcinoma, 24; large cell tumor, two; non–small cell tumor, three;...

Journal ArticleDOI
TL;DR: An analytic framework of obesity screening components with key questions and eligibility criteria was developed and the conscious measurement of weight status to clinically address body weightand treatment was reviewed to determine the effectiveness of adult obesity screening.
Abstract: This systematic review describes the evidence that led the U.S. Preventive Services Task Force to its position on screening and interventions for obesity in adults.

Journal ArticleDOI
22 Dec 2003-Urology
TL;DR: The incidence of prostate cancer increased sharply after the introduction of widespread screening for prostate-specific antigen (PSA), although rates have now returned to levels seen before that time, and PSA screening has been associated with a shift toward diagnosis of earlier-stage disease.

Journal ArticleDOI
TL;DR: Multianalyte technologies such as MS/MS are suitable for newborn screening and other mass screening programs because they improve the detection of many diseases in the current screening panel while enabling expansion to disorders that are now recognized as important and need to be identified in pediatric medicine.
Abstract: Background: Over the past decade laboratories that test for metabolic disorders have introduced tandem mass spectrometry (MS/MS), which is more sensitive, specific, reliable, and comprehensive than traditional assays, into their newborn-screening programs. MS/MS is rapidly replacing these one-analysis, one-metabolite, one-disease classic screening techniques with a one-analysis, many-metabolites, many-diseases approach that also facilitates the ability to add new disorders to existing newborn-screening panels. Methods: During the past few years experts have authored many valuable articles describing various approaches to newborn metabolic screening by MS/MS. We attempted to document key developments in the introduction and validation of MS/MS screening for metabolic disorders. Our approach used the perspective of the metabolite and which diseases may be present from its detection rather than a more traditional approach of describing a disease and noting which metabolites are increased when it is present. Content: This review cites important historical developments in the introduction and validation of MS/MS screening for metabolic disorders. It also offers a basic technical understanding of MS/MS as it is applied to multianalyte metabolic screening and explains why MS/MS is well suited for analysis of amino acids and acylcarnitines in dried filter-paper blood specimens. It also describes amino acids and acylcarnitines as they are detected and measured by MS/MS and their significance to the identification of specific amino acid, fatty acid, and organic acid disorders. Conclusions: Multianalyte technologies such as MS/MS are suitable for newborn screening and other mass screening programs because they improve the detection of many diseases in the current screening panel while enabling expansion to disorders that are now recognized as important and need to be identified in pediatric medicine.

Journal ArticleDOI
20 Aug 2003-JAMA
TL;DR: Although C-reactive protein, lipoprotein(a), fibrinogen, and homocysteine are associated with vascular disease risk, their optimal use in routine screening and risk stratification remains to be determined.
Abstract: ContextAtherosclerotic vascular disease is an enormous public health problem. A number of emerging risk factors for atherosclerosis have recently been proposed to help identify high-risk individuals.ObjectiveTo review the epidemiological, basic science, and clinical trial evidence concerning 4 emerging risk factors: C-reactive protein, lipoprotein(a), fibrinogen, and homocysteine.Data SourcesUsing the terms atherosclerosis, cardiovascular disease, risk factors, prevention, screening, C-reactive protein, lipoprotein(a), fibrinogen, and homocysteine, we searched the MEDLINE database from January 1990 to January 2003. Conference proceedings, abstract booklets, bibliographies of pertinent articles and books, and personal files were hand searched to identify additional articles.Study SelectionOriginal investigations and reviews of the epidemiology of atherosclerosis and the association of conventional and novel risk factors with vascular risk were selected. On the basis of the search strategy, 373 relevant studies were identified.Data ExtractionA diverse array of studies were examined, including randomized controlled trials, prospective cohort studies, systematic overviews, case-control, cross-sectional, and mechanistic studies. Data extraction was performed by one of the authors.Data SynthesisThe available epidemiological and basic science evidence supports, to varying degrees, independent associations between these 4 candidate risk factors and atherosclerotic vascular disease. However, there is relatively little data regarding the additive yield of screening for these factors over that of validated global risk assessment strategies currently in use. Furthermore, controlled intervention studies targeting individuals with these factors for proven risk-reduction therapies, or specifically treating these factors with available therapies, are few. The explanatory power of the major, established cardiovascular risk factors has been systematically underestimated.ConclusionsAlthough C-reactive protein, lipoprotein(a), fibrinogen, and homocysteine are associated with vascular disease risk, their optimal use in routine screening and risk stratification remains to be determined.

Journal ArticleDOI
TL;DR: This research presents a novel and scalable approach to understanding and treating atherothrombotic disease through a probabilistic approach called “informed consent” that combines natural selection, informed consent, and data collection and analysis.
Abstract: Jill J. F. Belch, MD; Eric J. Topol, MD; Giancarlo Agnelli, MD; Michel Bertrand, MD; Robert M. Califf, MD; Denis L. Clement, MD; Mark A. Creager, MD; J. Donald Easton, MD; James R. Gavin III, MD, PhD; Philip Greenland, MD; Graeme Hankey, MD; Peter Hanrath, MD; Alan T. Hirsch, MD; Jurgen Meyer, MD; Sidney C. Smith, MD; Frank Sullivan, PhD; Michael A. Weber, MD; for the Prevention of Atherothrombotic Disease Network

Journal ArticleDOI
TL;DR: Comparison of the detection rate and positive predictive values of HPV assay with cytology and the best management strategy for HPV-positive women found HPV testing was more sensitive than borderline or worse cytology but less specific for detecting CIN2+.

Journal ArticleDOI
TL;DR: Simulation modelling is a powerful method for modelling both small and large populations to inform policy makers in the provision of health care and although the number of modelling papers has grown substantially over recent years, further research is required to assess the value of modelling.
Abstract: BACKGROUND: The objective of the review was to evaluate the extent, quality and value of computer simulation modelling in population health and health care delivery. METHODS: A narrative systematic review was carried out of world literature from 1980 to 1999, searching Medline, INSPEC, Embase, HealthSTAR, Science Citation Index, CINAHL, MathSci, INFORMS Online and SIGLE databases, and researchers in the field were contacted. Papers were included if they contained a computer simulation model of individuals in a stochastic system and the topic or setting related to population health or health service delivery. RESULTS: A total of 182 papers met the inclusion criteria. Simulation modelling has been undertaken in a wide range of health care topic areas, including hospital scheduling and organization, communicable disease, screening, costs of illness and economic evaluation. However, the quality of published papers was variable and few reported on the outcomes of implementation of models, so that the value of modelling could not be assessed. CONCLUSION: Simulation modelling is a powerful method for modelling both small and large populations to inform policy makers in the provision of health care. It has been applied to a wide variety of health care problems. Although the number of modelling papers has grown substantially over recent years, further research is required to assess the value of modelling.

Journal ArticleDOI
TL;DR: Screening for undiagnosed diabetes could be most efficient in individuals with abdominal adiposity (men), hypertriglyceridaemia (women), hypertension, and parental diabetes history, indicating the need for screening and prevention.
Abstract: Aims/hypothesis To estimate the prevalence of undiagnosed diabetes mellitus, impaired glucose tolerance (IGT) and impaired fasting glucose (IFG), and their relations with cardiovascular risk factors in the general population aged 55 to 74 years in Southern Germany.

Journal ArticleDOI
TL;DR: Proteinuria was a strong, independent predictor of ESRD in a mass screening setting in Okinawa, Japan, and therefore, asymptomatic proteinuria warrants further work-up and intervention.

Journal ArticleDOI
TL;DR: Two brief indices of sensation seeking are developed, a four-item measure that retains the framework of the Sensation Seeking Scale-Form V (SSS-V) and a shorter two- item measure focusing on the risk-taking elements of sensation seek.

Journal ArticleDOI
13 Nov 2003-BMJ
TL;DR: Two verbally asked questions for screening for depression would detect most cases of depression in general practice, and have the advantage of brevity.
Abstract: Objective To determine the diagnostic accuracy of two verbally asked questions for screening for depression. Design Cross sectional criterion standard validation study. Setting 15 general practices in New Zealand. Participants 421 consecutive patients not taking psychotropic drugs. Main outcome measures Sensitivity, specificity, and likelihood ratios of the two questions compared with the computerised composite international diagnostic interview. Results The two screening questions showed a sensitivity and specificity of 97% (95% confidence interval, 83% to 99%) and 67% (62% to 72%), respectively. The likelihood ratio for a positive test was 2.9 (2.5 to 3.4) and the likelihood ratio for a negative test was 0.05 (0.01 to 0.35). Overall, 37% (157/421) of the patients screened positive for depression. Conclusion Two verbally asked questions for screening for depression would detect most cases of depression in general practice. The questions have the advantage of brevity. As treatment is more likely when doctors make the diagnosis, these questions may have even greater utility.

Journal ArticleDOI
TL;DR: The screening by MS/MS for up to 23 additional disorders has approximately doubled the detection rate compared with that achieved by the conventional methods used in Germany.
Abstract: Objective. The aims of this study were to determine the impact of expanded newborn screening using tandem mass spectrometry (MS/MS) on the overall detection rate of inborn errors of metabolism in Germany and to assess the outcome for the patients that were diagnosed. Methods. During the period of study, 250 000 neonates in a German population were investigated for 23 inborn errors of metabolism by electrospray ionization-MS/MS. The overall value of the screening program was estimated by 1) complete ascertainment of all positive tests; 2) definite assignment of all diagnoses including reconfirmation at 12 months; and 3) clinical follow-up of all detected patients in an overall interval of 42 months. The mean observation period was 13.5 months per child. Results. In 106 newborns, confirmed inborn errors of metabolism were found. The disorders were classified as 50 classic forms and 56 variants. A total of 825 tests (0.33%) were false-positives. Seventy of the 106 newborns with confirmed disorders were judged to require treatment. Six children developed symptoms despite treatment. Three children had died. Among 9 children who became symptomatic before report of the results of screening, in 6 the diagnosis had been made in advance of the screening report. In evaluation of the screening program, 61 of the 106 identified children (58% of true-positives, or 1 of 4100 healthy newborns) were judged to have benefited from screening and treatment, because the diagnosis had not been made before screening. None of these infants had died and none developed psychomotor retardation or metabolic crisis during the follow-up period. Conclusions. The screening by MS/MS for up to 23 additional disorders has approximately doubled the detection rate compared with that achieved by the conventional methods used in Germany. This strategy represents valuable preventive medicine by enabling diagnosis and treatment before the onset of symptoms.

Journal ArticleDOI
TL;DR: Combined use of low-dose spiral CT and selective PET effectively detects early lung cancer in high-risk individuals in a large cohort of high- risk volunteers.

Journal ArticleDOI
TL;DR: This work believes that this is the first direct evidence of an alteration in fetal brain histogenesis and cytoarchitecture that could only be related to early maternal hypothyroxinemia, and ought to be prevented both by mass screening of free thyroxine in early pregnancy and by early iodine supplementation to avoid iodine deficiency, however mild.
Abstract: Epidemiological studies from both iodine-sufficient and -deficient human populations strongly suggest that early maternal hypothyroxinemia (i.e., low circulating free thyroxine before onset of fetal thyroid function at midgestation) increases the risk of neurodevelopmental deficits of the fetus, whether or not the mother is clinically hypothyroid. Rat dams on a low iodine intake are hypothyroxinemic without being clinically hypothyroid because, as occurs in pregnant women, their circulating 3,5,3'-triiodothyronine level is usually normal. We studied cell migration and cytoarchitecture in the somatosensory cortex and hippocampus of the 40-day-old progeny of the iodine-deficient dams and found a significant proportion of cells at locations that were aberrant or inappropriate with respect to their birth date. Most of these cells were neurons, as assessed by single- and double-label immunostaining. The cytoarchitecture of the somatosensory cortex and hippocampus was also affected, layering was blurred, and, in the cortex, normal barrels were not formed. We believe that this is the first direct evidence of an alteration in fetal brain histogenesis and cytoarchitecture that could only be related to early maternal hypothyroxinemia. This condition may be 150-200 times more common than congenital hypothyroidism and ought to be prevented both by mass screening of free thyroxine in early pregnancy and by early iodine supplementation to avoid iodine deficiency, however mild.

Journal ArticleDOI
01 May 2003-Gut
TL;DR: This document, on the diagnosis and treatment of patients with hepatocellular carcinoma (HCC), was commissioned by the British Society of Gastroenterology as part of a wider initiative to develop guidelines for clinicians in several areas of clinical practice.
Abstract: This document, on the diagnosis and treatment of patients with hepatocellular carcinoma (HCC), was commissioned by the British Society of Gastroenterology as part of a wider initiative to develop guidelines for clinicians in several areas of clinical practice. Cancer care has been the subject of increased scrutiny, with the development of care guidelines forming a major part of the strategy to reduce cancer related mortality in the UK. There is a strong suggestion that HCC is a disease which will be seen more frequently over the next few years, mainly as a result of the hepatitis C virus (HCV) epidemic. Previously, HCC has been a relatively rare tumour in the UK and much of the data pertaining to its diagnosis and therapy are derived from studies outside of the UK. Because of the lack of screening programmes and the fact that a significant proportion of HCC presents as symptomatic disease in individuals not known to have liver disease, most non-surgical therapies have been used in patients with advanced disease. There are a significant number of variables known to influence prognosis, with stage of underlying liver disease and tumour size at presentation being the most important. Controlling for these variables is difficult and these factors have contributed to a dearth of randomised controlled trials of treatment for this tumour. There is however a substantial amount of evidence available which can form the basis of a framework for diagnosis and management. Guidelines are not rigid protocols and they should not be construed as interfering with local clinical judgement. Hence they do not represent a directive of proscribed routes but a basis on which clinicians can consider the options available more clearly. These guidelines cover two areas of clinical practice relating to HCC: firstly, its diagnosis, including surveillance of high risk individuals; and …

Journal ArticleDOI
TL;DR: The PSST applies a necessary degree of measure of severity and impact of premenstrual symptoms, establishes quickly if women qualify for PMDD, and is less time consuming and more practical than two cycles of prospective charting.
Abstract: A variety of instruments have been used in an attempt to operationalize DSM-IV criteria for premenstrual dysphoric disorder (PMDD) and to understand clinically significant premenstrual syndrome (PMS). The objectives of this research were to devise a simple user friendly screening tool to identify women who suffer from severe PMS/PMDD and who are likely to benefit from treatment. Five hundred and nineteen women, between the ages of 18 and 55 yrs, who were seen at a primary care facility completed "The Premenstrual Symptoms Screening tool" (PSST). The PSST reflects and 'translates' categorical DSM-IV criteria into a rating scale with degrees of severity. The results are in line with reported prevalence rates from several recent large prospective studies. We believe that the PSST applies a necessary degree of measure of severity and impact of premenstrual symptoms, establishes quickly if women qualify for PMDD, and is less time consuming and more practical than two cycles of prospective charting. This fast simple tool is an effective screening tool and an important starting point for further assessment.

Journal ArticleDOI
TL;DR: Foreign birthplace may explain some disparities previously attributed to race or ethnicity, and is an important barrier to cancer screening, even after adjustment for other factors.
Abstract: CONTEXT: Racial/ethnic groups comprised largely of foreign-born individuals have lower rates of cancer screening than white Americans. Little is known about whether these disparities are related primarily to their race/ethnicity or birthplace.

Journal ArticleDOI
TL;DR: There is a report of a workshop held to review emerging technology for colorectal cancer screening that resulted in a modification of current previous recommendations for fecal occult blood tests, and revised recommendations for the “cancer‐related check‐up” in which clinical encounters provide case‐finding and health‐counseling opportunities.
Abstract: Each January, the American Cancer Society (ACS) publishes a summary of existing recommendations for early cancer detection, including updates, and/or emerging issues that are relevant to screening for cancer. In 2002, the ACS assembled expert groups to update guidelines for cervical cancer screening and breast cancer screening, and to evaluate new technology for colorectal cancer screening. In November 2002, updated guidelines for cervical cancer screening were published in this journal, and breast cancer screening guidelines will be updated in 2003. In this issue, there is a report of a workshop held to review emerging technology for colorectal cancer screening that resulted in a modification of current previous recommendations for fecal occult blood tests, and revised recommendations for the "cancer-related check-up" in which clinical encounters provide case-finding and health-counseling opportunities. Finally, we provide an update of the most recent data pertaining to participation rates in cancer screening by age, gender, and ethnicity from the Centers for Disease Control and Prevention's Behavioral Risk Factor Surveillance System (BRFSS).