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PubMed1995

[Pepsinogen].

It is generally accepted that extensive chronic atrophic gastritis is a precursor to gastric cancer in populations at high risk for this tumor. To improve the effectiveness of gastric cancer screening, we have devised a new screening method that investigates the serum pepsinogen levels and applied a serum pepsinogen test to mass screening for gastric cancer at a certain workplace for the first time. This screening system (named "stomach dry dock") is based on the findings that many gastric cancer develop in the stomach mucosa affected by severe and extensive chronic atrophic gastritis. Using the serum tests (Pepsinogen I/II RIA BEAD Kit: Dainabot Co., LTD. Japan) we have screened 14,862 employees of a certain company in 1991-93 and 25 cases (0.17%) of gastric cancer including 21 cases (84%) of early gastric cancer and 10 cases (0.07%) with gastric adenoma; precancerous lesion. The results are better than that of the traditional barium X-ray screening (incidence of gastric cancer is 0.07%) in the same company. In conclusion the best sensitivity for detecting gastric cancer is achieved by the mass screening with serum pepsinogen tests in combination with X-ray or endoscopy.

Chronic Disease↗
PubMed2004

Prevalence of and risk factors for nocturia: Analysis of a health screening program.

BACKGROUND: We examined the prevalence of and risk factors for nocturia in Kurashiki city and the surrounding area, a rural area in Japan. MATERIALS AND METHODS: We collected data on 6517 individuals (4568 men and 1949 women) who participated in a multiphasic health screening. We analyzed the relationships between nocturia assessed by a questionnaire (voiding twice or more during night) and other variables including age, hypertension, cardiovascular disease, cerebrovascular disease, chronic obstructive pulmonary disease, diabetes mellitus (DM), chronic renal failure, benign prostatic hyperplasia (BPH), smoking habit and alcohol intake. RESULTS: Overall, 1856 individuals (28.5%) answered that they arose to urinate at least twice during the night. This rate increased with age from 16.5% in individuals younger than 50 to 60.0% in those older than 69. Logistic regression analysis revealed that cohorts of subjects 50-59, 60-69, and 70 years old or over had, respectively, 1.75, 3.35, and 6.21 times the prevalence of nocturia of the 49 years or younger cohort. Hypertension (odds ratio [OR] 1.64) and DM (OR 1.70) were other independent positive risk factors for nocturia. On the other hand, current smokers who smoked 20 or more cigarettes per day were less likely to have nocturia than non-smokers (OR 0.72). In male individuals, BPH was another independent positive risk factor (OR 1.35). Gender was not associated with nocturia. CONCLUSIONS: Although population bias is an important limitation to this study, nocturia is associated with various factors suggesting that multiple approaches are needed to the treatment of patients with nocturia.

Age Distribution↗
PubMed1971

Laboratory screening. A critical survey.

The diagnosis of disease is not synonymous with benefit to the patient. Early diagnosis does not necessarily facilitate cure or improve prospects for control. The discovery of what is already known or could easily have been predicted has little or no value. To evaluate screening one must evaluate the usefulness of the data collected.

Clinical Laboratory Techniques↗
PubMed2005

B-type natriuretic peptide testing for structural heart disease screening: a general population-based study.

BACKGROUND: Several types of structural heart disease are important precursors for congestive heart failure or cardioembolic stroke. We have previously demonstrated that plasma B-type natriuretic peptide (BNP) measurement is useful for detection of structural heart disease in a multiphasic health screening setting. To extend our hypothesis to the general population, the utility of BNP testing for identifying structural heart disease was assessed in a general population and in subgroups divided by sex, age, and presence/absence of risk factors. METHODS AND RESULTS: This cross-sectional cohort study measured plasma BNP concentrations in 993 randomly selected community-dwelling adults (mean age 58 years). All subjects underwent plasma BNP measurement and transthoracic echocardiography. Using prejudged criteria, 41 subjects were diagnosed to have some form of structural heart disease (mild left ventricular systolic dysfunction in 11, valvular heart disease in 9, hypertensive heart disease in 3, hypertrophic cardiomyopathy in 2, ischemic heart disease in 2, lone atrial fibrillation in 14). The utility of BNP testing was evaluated by receiver operating characteristic (ROC) analysis and by cost analysis for detection of 1 case within each subgroup of the cohort. Overall, the sensitivity and specificity of BNP testing for identification of structural heart disease were 61% and 92%, respectively. The area under the ROC curve was 0.77 (95% CI; 0.74-0.79). When sex-specific ROC analyses were performed, sensitivity and specificity were 61% and 91% in men, and 50% and 95% in women, respectively. Although the performance of BNP testing on the basis of these figures might be suboptimal, efficacy was improved in subgroups with a high prevalence of heart disease (>8%) such as the cohort aged > or =65 years (men, area under ROC curve = 0.88; cost <US $1400: women, area under ROC curve = 0.83; cost <US $3000) as well as the cohort having cardiovascular risk factors such as hypertension or diabetes (men, area under ROC curve = 0.85; cost <US $1700: women, area under ROC curve = 0.83; cost <US $3100). CONCLUSION: The present results suggest that BNP testing for structural heart disease screening in community-based populations is useful for cohorts with a high prevalence of heart disease. However, its efficacy is reduced in cohorts with a low prevalence rate.

Adult↗
PubMed1985

Risk identification and management in clinical practice. Techniques for risk appraisal, screening, and monitoring.

The data on factors that adversely affect health status are mounting, and information on behavioral and environmental means of preventing certain types of disease is becoming more widely available; yet preventive medicine is still seen as a less dynamic form of clinical practice than the crisis-oriented, complaint-responsive form. In this article, first in a series, the author reviews attitudes toward preventive medicine, discusses factors that affect health, explains the notion of how "prospective" medicine can develop through the use of health hazard appraisal, and reviews his and other researchers' ideas about screening tests, periodic physical examinations, health monitoring, and risk-factor identification in physical exams.

Health Status Indicators↗
PubMed2004

[The usefulness of frequency doubling technology perimetry in glaucoma screening in health-check program].

PURPOSE: Visual field testing has not been used as a screening procedure because it requires too much testing time and manpower. We evaluated the usefulness of Frequency Doubling Technology(FDT) visual field testing as a screening procedure for glaucoma in a health-check screening program. METHODS: A total of 800 eyes of 400 persons were examined for visual acuity, noncontact tonometry, slit-lamp biomicroscopy, funduscopy, and FDT testing of visual fields (N-30-5). The initial screening result was considered positive for glaucoma if any abnormality of FDT perimetry was detected, the intraocular pressure exceeded 21 mmHg, or funduscopy showed glaucomatous disc cupping or retinal nerve fiber layer defect. The re-examination comprised several ophthalmic examinations such as automatic perimetry 9 Humphrey field analyzer). RESULTS: Glaucoma was suspected in 118 eyes; 16 eyes were thus diagnosed after re-examination. FDT detected visual field abnormalities in 15 eyes. There were 40 eyes that were not diagnosed although FDT detected visual field abnormalities. CONCLUSIONS: FDT detected visual field abnormalities in glaucoma patients with high sensitivity and specificity. FDT is a useful screening test for glaucoma.

Adult↗