PubMed · 7525997
The source did not provide an abstract. Follow the original record for more information.
Explore connections, maps & timelines
M C Benson. 1994. Prostate specific antigen.. https://doi.org/10.1016/s0022-5347(17)32302-9
Cite the original work for its findings. Save a collection to share your selection of sources.
KEEP EXPLORING
To assess the age- and sex-specific prevalence and risk factors for aneurysms of the abdominal aorta, the authors performed a population-based study in 5,419 subjects (42% men, 58% women) aged 55 years and over. The proximal and distal diameter of the abdominal aorta were measured by ultrasound. An aneurysm was defined as a distal aortic diameter of 35 mm or more or a dilatation of the distal part of the the abdominal aorta of 50% or more. The mean distal and proximal aortic diameter increased 0.7 mm and 0.3 mm, respectively, with every 10 years of age. In 2.1% (95% confidence interval (CI) 1.7-2.5) of the study population, an aneurysm was present, or in 4.1% (95% CI 3.2-4.9) of the men and 0.7% (95% CI 0.4-1.0) of the women. Subjects with an abdominal aneurysm were more likely to be smokers and they had higher serum cholesterol levels and higher prevalence of cardiovascular disease compared with subjects without an aneurysm. The authors conclude that the ultrasound diameter of the abdominal aorta clearly increases with age in both men and women and that the prevalence of aneurysms of the abdominal aorta in older adults in relatively high, especially in men.
The authors investigated the risk of developing dementia for persons aged 50-75 years who suffered from Parkinson's disease, epilepsy, or severe head trauma. They compared the risk in this patient group with the risk in a reference group in a follow-up study based on the linked databases of three Dutch nationwide morbidity registers over the years 1980-1989. The overall relative risk of developing dementia within 8 years in patients with Parkinson's disease who were initially free of dementia was 3.0 (95% confidence interval (CI) 2.9-3.1). Risk was especially increased in younger Parkinson's disease patients (relative risk (RR) = 13.2, 95% CI 6.2-28.6). For patients with epilepsy, the overall relative risk was 1.5 (95% CI 1.4-1.7). Severe head trauma was not associated with an increased risk of dementia (RR = 1.0, 95% CI 0.9-1.1). These findings suggest that Parkinson's disease is an important risk factor for dementia, with a particularly high risk in young patients with Parkinson's disease. Patients with epilepsy may bear a moderately increased risk of developing dementia. This study does not support earlier findings in retrospective case-control studies of an increased risk of dementia in head trauma patients.
OBJECTIVE: To evaluate dietary and environmental factors as potential risk factors for calcium oxalate urolithiasis in cats. DESIGN: Case-control study. ANIMALS: 84 cats with uroliths composed of at least 90% calcium oxalate and 258 age- and gender-matched control cats. PROCEDURE: Owners of cats with calcium oxalate urolithiasis and control cats were surveyed between November 1990 and August 1992. Owners completed a standard questionnaire administered during a single telephone interview. Data collected included information regarding signalment, environment, urination and defecation, diet, and medical history. RESULTS: Calcium oxalate uroliths tended to develop in middle- to older-aged, domestic shorthair cats of typical weight. A gender predilection was not detected. Factors associated with an increase in the risk of calcium oxalate urolithiasis in cats were feeding urine-acidifying diets, feeding a single brand of cat food without providing additional foods or table scraps, maintaining cats in an indoor-only environment, and being of the Persian breed. CLINICAL IMPLICATIONS: Control of diet and environment may help prevent calcium oxalate urolithiasis.