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PubMed2005

Is there a relevant effect of noise and smoking on hearing? A population-based aging study.

The objectives of the present study were to evaluate both the respective and combined effects of occupational noise exposure and smoking on hearing, taking age into consideration. The evaluation was conducted using 1478 subjects without a history of ear disease out of a population-based sample of 2267 adults, aged 40 79 years. Pure-tone audiometry and a questionnaire were administered. A deleterious effect of noise exposure on hearing was significantly observed in both genders at many frequencies after adjustment for age, income, and education. The smoking habit alone significantly affected hearing deterioration at 4000 Hz in noise-unexposed males. The combined effect of noise and smoking was not interactive but additive. A dose-response effect of smoking on hearing loss was observed in middle-aged males without noise exposure. Smoking and noise exposure were associated with hearing loss respectively.. This result is noteworthy for the preservation of good hearing especially at the beginning of aging.

Adult↗
PubMed1989

Multidisciplinary assessment of applicants for sheltered housing.

Three hundred applicants for sheltered housing underwent multidisciplinary geriatric assessment for suitability as a part of a joint assessment scheme with Local Authority Housing and Social Services Departments. Ninety-four applicants sought a move for health reasons while 206 applicants quoted housing and social reasons and denied medical problems. The assessment showed no significant disability necessitating sheltered housing facilities for 41 (44%) of the 94 people applying on health grounds. Severe disability made sheltered housing placement inappropriate for ten (10%) of the applicants with health problems. In the 206 applicants denying medical problems, the assessment revealed significant unreported physical illness in 46 (22%) and undiagnosed dementia in a further 26 (13%). Allocation of sheltered housing was affected in 99 (33%) of the 300 applicants. Eighty-two applicants were considered unsuitable, whereas 17 applicants originally thought to be unsuitable were recommended for sheltered housing. Multidisciplinary geriatric assessment is of considerable benefit in determining suitability of applicants for sheltered housing and will help in achieving better placement by avoiding inappropriate moves.

Aged↗
PubMed1981

A multivariate assessment of alcohol consumption.

Subjects attending a large, multiphasic health screening centre in Sydney, Australia estimated their alcohol consumption and specimens of their blood were analysed. The most useful univariate estimates of alcohol consumption were erythrocyte mean corpuscular volume and plasma aspartate-aminotransferase, gamma-glutamyl-transpeptidase, triglycerides and uric acid. The most statistically significant of these tests have been combined to form a multivariate predictor of alcohol intake which is more successful in identifying heavy-drinkers than single tests. To describe this population further, and to aid comparisons between populations, information about non-drinkers has also been provided.

Alcoholism↗
PubMed1995

Prostate-specific antigen as predictor of prostate cancer in black men and white men.

BACKGROUND: The increasing incidence of prostate cancer creates complex issues in health care management and cost containment. There is a need to evaluate serial measurements of prostate-specific antigen (PSA) as a marker for long-term risk of clinically important prostate cancer (stages B through D). PURPOSE: We used a nested case-control design within a retrospective cohort study to evaluate serial PSA concentrations in relation to subsequent prostate cancer diagnoses. METHODS: Participants included 40 black and 96 white men with subsequent diagnoses of prostate cancer and 84 black and 100 white men without such diagnoses (control subjects) in a multiphasic health screening program conducted by the Kaiser Permanente Medical Care Program of Northern California. Serial serum samples were collected 1.5-23 years before prostate cancer diagnosis. RESULTS: Median serum PSA concentrations, specific for age and subsequent cancer status, were similar in blacks and whites. Concentrations in control subjects increased exponentially with age, with a doubling time of 24.9 years. Concentrations in men with stage A cancer were similar to those in control subjects. Until about 13 years before diagnosis, PSA in men with subsequent cancer stages B through D increased exponentially with age, with a doubling time similar to that of control subjects. Thereafter, the PSA concentrations increased exponentially, with a doubling time of 4.3 years. Rapid increase in PSA concentration started about 1.5 years earlier for men with stage D cancer than for men with stage B or C cancer. The single PSA measurement drawn closest to diagnosis was a more sensitive marker of stages B through D cancer within the next 7 years than was any index of change that also took account of earlier PSA readings. CONCLUSIONS: These data suggest that 1) age-specific PSA concentrations are similar in black men and white men and 2) current PSA concentration, specific for age, outperforms changes in past concentrations in identifying the man who will develop stage B, C, or D cancer within 7 years, albeit at the cost of a slightly higher rate of false-positive results. This interpretation needs confirmation in other data containing many serial PSA measurements within a few years of diagnosis.

Adult↗
PubMed1993

Improvements in cognitive performance for schoolchildren in Zaire, Africa, following an iron supplement and treatment for intestinal parasites.

Tested 47 first-year primary school children at a mission school in rural Zaire for cognitive ability with the Kaufman Assessment Battery for Children (K-ABC) adopted to the language of Kituba. Within a day of this test, each child was evaluated for blood hemoglobin (Hgb) level and the presence of intestinal parasites. Half of the children received an iron supplement (20 mg Fe) for 30 days and those children positive for the intestinal parasites of ankylostome or ascaris were randomly selected to receive either a vermifuge treatment or placebo. All of the children were again evaluated medically and cognitively 4 weeks after the initiation of treatment. Using discriminant analysis, performance on the Mental Processing Composite of the K-ABC 1 month after treatment in combination with increases in blood Hgb resulted in the successful classification of 74% in terms whether a child had received both iron supplement and vermifuge treatment (p = .007). With respect to our home evaluation for each child, factors related to the nutritional and economic well-being of the home environment proved a reliable marker for Simultaneous Processing ability. However, the present findings also suggest that over the short-term, changes in blood Hgb that accompany both vermifuge and iron supplement treatment together can improve certain aspects of cognitive ability, perhaps by means of heightened attentional capacity.

Anemia, Hypochromic↗
PubMed1991

Incidence of surgically treated benign prostatic hypertrophy and of prostate cancer among blacks and whites in a prepaid health care plan.

The incidence of surgically treated benign prostatic hypertrophy and of prostate cancer was examined to December 1987 in 14,897 men (2,175 blacks and 12,722 whites) who received multiphasic health checkups during 1971-1972 while members of the Kaiser Permanente Medical Care Program (San Francisco-Oakland, California). Prostate cancer incidence was higher in blacks than in whites for all age groups (age-adjusted relative risk (RR) = 1.8, 95% confidence interval (CI) 1.4-2.3). The incidence of benign prostatic hypertrophy was somewhat higher in blacks than in whites until age 65 years, after which it was higher in whites. In contrast to the risk of prostate cancer, the age-adjusted risk of benign prostatic hypertrophy was the same for blacks as for whites (RR = 1.0, 95% Cl 0.8-1.2).

Adult↗
PubMed2002

Accuracy of multiphasic helical computed tomography and intraoperative sonography in patients undergoing orthotopic liver transplantation for hepatoma: what is the truth?

OBJECTIVE: To determine the real value of liver imaging in cirrhosis by macro- and histomorphologic examination of the entire organ after orthotopic liver transplantation for hepatocellular carcinoma (HCC). SUMMARY BACKGROUND DATA: In comparative studies, a virtual sensitivity of up to 94% is described for helical computed tomography in HCC staging. The tumor detection rate of intraoperative ultrasonography (IOUS) is reported to be almost 100%. METHODS: This prospective observational study comprised 23 patients with HCC in cirrhosis admitted for orthotopic liver transplantation. Results of preoperative triphasic helical computed tomography (HCT) and IOUS were correlated with histopathologic results after 3-mm-slicing of the explanted liver. RESULTS: Overall, 179 liver segments were examined by HCT, IOUS, and MHM. Fifty-two malignant lesions and 10 dysplastic nodules were revealed by MHM. Using HCT, 13 HCCs could not be identified in 8 patients and 15 results were falsely positive in 10 patients. The detection rate of dysplastic nodes was 40% for HCT and 60% for IOUS. IOUS missed four HCCs in four patients and had six false-positive results in six patients. In a segment-based analysis, the overall accuracy of IOUS was significantly higher for IOUS (95.5%) versus HCT (89.9%). In the lesion-by-lesion analysis, the sensitivity was 92.3% for IOUS and 75.0% for HCT, with a significant difference. CONCLUSIONS: Correlation of explanted liver pathologic results offers precise evaluation of imaging modalities. The data of this histopathologically based study confirm that IOUS is significantly superior in staging HCC in cirrhosis versus CT, even after technical refinements through enhanced multiphasic high-velocity helical scanning.

Adult↗