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  • 1
    Electronic Resource
    Electronic Resource
    Effects of Menstrual History and Use of Medications on Bone Mineral Density: The EVOS Study (1998)
    Springer
    Calcified tissue international 63 (1998), S. 271-276 
    Details
    ISSN: 1432-0827
    Keywords: Key words: Bone mineral density — Epidemiology — Osteoporosis — Menopause — Medication use.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine , Physics
    Notes: Abstract: We have previously shown considerable between-center variation in bone mineral density (BMD) in the 13 EVOS centers that performed bone densitometry on their sex- and age-stratified population samples, after adjusting for weight and age. We have now investigated whether part of the between-center variability may be attributed to between-center variations in the use of medications. Information was collected from 2088 women and 1908 men at baseline on whether the subjects had ever been prescribed calcium, calcitonin, anabolic steroids, fluoride, vitamin D, or glucocorticoids and, for the women, whether they had ever used the oral contraceptive pill (OCP) or hormone replacement therapy (HRT). Each of these variables was fitted into a regression model adjusted for age, height, weight, and center. Only OCP and HRT significantly affected BMD. Those who had ever used OCPs had spinal BMD 0.029 g/cm2 greater than those who had never used them. Users of HRT had higher BMD than nonusers: 0.037 g/cm2 at the spine, 0.018 g/cm2 at the trochanter, and 0.018 g/cm2 at the femoral neck. As expected, there was a great variation between centers in the use of OCP and HRT, but there were no significant correlations between mean BMD at any site in a given center and the prevalence of OCP or HRT use in that center. The between-center variance in BMD at all three sites remained highly significant after adjusting for treatment (P 〈 0.001). We conclude that HRT and OCP use are associated with moderate increases in BMD. The geographical variability of BMD in Europe was not explained by treatment with pharmaceuticals.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002239900525
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Mortality Associated with Vertebral Deformity in Men and Women: Results from the European Prospective Osteoporosis Study (EPOS) (1998)
    Springer
    Osteoporosis international 8 (1998), S. 291-297 
    Details
    ISSN: 1433-2965
    Keywords: Key words:Epidemiology – Mortality – Osteoporosis – Vertebral deformity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract: Clinically apparent vertebral deformities are associated with reduced survival. The majority of subjects with radiographic vertebral deformity do not, however, come to medical attention. The aim of this study was to determine the association between radiographic vertebral deformity and subsequent mortality. The subjects who took part in the analysis were recruited for participation in a multicentre population-based survey of vertebral osteoporosis in Europe. Men and women aged 50 years and over were invited to attend for an interviewer-administered questionnaire and lateral spinal radiographs. Radiographs were evaluated morphometrically and vertebral deformity defined according to established criteria. The participants have been followed by annual postal questionnaire – the European Prospective Osteoporosis Study (EPOS). Information concerning the vital status of participants was available from 6480 subjects, aged 50–79 years, from 14 of the participating centres. One hundred and eighty-nine deaths (56 women and 133 men) occurred during a total of 14 380 person-years of follow-up (median 2.3 years). In women, after age adjustment, there was a modest excess mortality in those with, compared with those without, vertebral deformity: rate ratio (RR) = 1.9 (95% confidence interval (CI) 1.0,3.4). In men, the excess risk was smaller and non-significant RR = 1.3 (95% CI 0.9,2.0). After further adjusting for smoking, alcohol consumption, previous hip fracture, general health, body mass index and steroid use, the excess risk was reduced and non-significant in both sexes: women, RR = 1.6 (95% CI 0.9,3.0); men RR = 1.2 (95% CI 0.7,1.8). Radiographic vertebral deformity is associated with a modest excess mortality, particularly in women. Part of this excess can be explained by an association with other adverse health and lifestyle factors linked to mortality.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001980050067
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  • 3
    Electronic Resource
    Electronic Resource
    Direct Disclosure of Bone Density Results to Patients: Effect on Knowledge of Osteoporosis Risk and Anxiety Level (1998)
    Springer
    Osteoporosis international 8 (1998), S. 584-590 
    Details
    ISSN: 1433-2965
    Keywords: Key words:Anxiety – Bone density – Direct disclosure – Knowledge of risk
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract: If bone mineral density (BMD) screening is to achieve the aim of preventing the complications of osteoporosis, women with low BMD measurements must learn that they are at risk, and women at risk must know about and be willing to adopt and persist with measures that can prevent osteoporosis. In this paper we present the results of a randomized controlled trial designed to examine whether disclosing the results of a BMD scan directly to women, as well as through their general practitioners (GPs), improves their knowledge of their bone density results without adverse psychological sequelae. Direct disclosure resulted in 19% (59% vs 40%; 95% CI for difference in proportions: 9.8% to 27.8%) more women being aware of their BMD status at the spine and 22% (58% vs 36%; 95% CI for difference: 12.2% to 29.8%) at the hip. These differences were observed irrespective of risk status. There was no significant difference in anxiety levels between the randomized groups. We conclude, therefore, that direct disclosure of BMD results to women, as well as to their GPs, leads to increased knowledge of BMD status without increasing anxiety, and that BMD measurement services should consider informing women routinely of their results directly as well as through their GPs.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001980050103
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    A detailed reaction study of phosphorus trichloride and water (1998)
    New York, NY [u.a.] : Wiley-Blackwell
    Process Safety Progress 17 (1998), S. 49-60 
    Details
    ISSN: 1066-8527
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: This paper reports on a comprehensive literature search and small scale experimental work on the reaction characteristics of phosphorous trichloride and water. More than 30 tests were conducted, including both closed and open test cells. The water to phosphorus trichloride molar ratio was varied from 1 to 25. When in contact, water and phosphorus trichloride will form two liquid layers with a reaction starting at the interface. The impact of variables on reaction rates including the interface surface area, layer depth, and stirring were investigated experimentally. A reaction rate model that fits all the measured data is presented. Case studies illustrating the use of this data for emergency relief systems and vent containment design are presented in reference. [1].
    Additional Material: 10 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/prs.680170111
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    Paper (German National Licenses)
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