Search Results Heading

MBRLSearchResults

mbrl.module.common.modules.added.book.to.shelf
Title added to your shelf!
View what I already have on My Shelf.
Oops! Something went wrong.
Oops! Something went wrong.
While trying to add the title to your shelf something went wrong :( Kindly try again later!
Are you sure you want to remove the book from the shelf?
Oops! Something went wrong.
Oops! Something went wrong.
While trying to remove the title from your shelf something went wrong :( Kindly try again later!
    Done
    Filters
    Reset
  • Discipline
      Discipline
      Clear All
      Discipline
  • Is Peer Reviewed
      Is Peer Reviewed
      Clear All
      Is Peer Reviewed
  • Item Type
      Item Type
      Clear All
      Item Type
  • Subject
      Subject
      Clear All
      Subject
  • Year
      Year
      Clear All
      From:
      -
      To:
  • More Filters
      More Filters
      Clear All
      More Filters
      Source
    • Language
383 result(s) for "Tate, R. B."
Sort by:
Trajectories of nutritional risk: The Manitoba follow-up study
To identify patterns of nutritional risk among older men over a four-year period and to project their survival rates over the next two and a half years. A prospective longitudinal study. Canada. Three hundred and thirty-six male survivors of the Manitoba Follow-up Study (MFUS) cohort with an average age of 90 years in 2011. Four years of nutritional risk SCREEN II scores (five waves) from the male survivors of the MFUS cohort. The semi-parametric group-based trajectory approach and survival analysis were used to investigate the trajectories of nutritional risk. Of the participants, 30% lived alone. Five distinct developmental trajectory groups for nutritional risk score were identified. Significant statistical differences were found among the five trajectory groups for SF-36 mental health (p=.02), SF-36 physical health (p=<.001), perception of aging successfully (p=.04) and living alone (p=<.001). Among the five groups, the most pairwise differences were found in appetite, intake of meat and alternatives, and vegetables and fruit, weight change, skipping meals and eating with others. Men in the poorest nutritional risk trajectory group were two times more likely to die within a 2 1/2 year period compared to men in the best nutritional risk trajectory group (hazard rate = 2.33, p=.07). Distinct nutritional risk trajectories were found for older men over a four year period. Poor nutritional risk trajectories are associated with higher risk of mortality for very old men over a short period of time. Timely nutritional assessments by health professionals are needed to identify older men at nutritional risk. Subsequent nutrition education and follow-up may be important in preventing further decline.
The relationship of the transcutaneous oxygen tension, pulse waves and systolic pressures to the risk for limb amputation in patients with peripheral arterial disease and skin ulcers or gangrene
Our aim was to determine how the risk associated with presence of low transcutaneous oxygen tension (tcPO2) for subsequent major amputation in patients with skin ulcers or gangrene and peripheral arterial disease, compares with the risks associated with low peripheral pressures and low amplitude of pulse waves. Secondly, we determined whether combination of measurements of oxygen tension with that of the pressures or pulse wave amplitude predicts amputation better than pressure, wave or oxygen tension measurements alone. Measurements were carried out to obtain foot tcPO2, ankle and toe pressures, pressure indices, and toe pulse wave amplitude in 75 limbs with skin lesions and arterial disease of 66 patients referred to the vascular laboratory. These variables were related to the risk of a subsequent major amputation during a median time of 4.2 years, using Cox proportional hazards model. Low oxygen tension was associated with increased risk of amputation (relative risks 2.16 and 2.55 for tcPO2 < or = 10 mmHg and < or = 20 mmHg, respectively, P<0.05; relative risk 2.22 for tcPO2 < or = 30 mmHg, P=0.07). The relative risks associated with cutoff values of ankle and toe pressures and pressure indices varied from 2.53 (toe < or = 20 mmHg, P<0.05) to 5.83 (ankle < or = 50 mmHg, P<0.001) and the relative risk associated with low wave amplitude (< or = 4 mm) was 3.41, P<0.01. The cutoff values of tcPO2 became insignificant when included in the models together with each pressure variable or pulse amplitude separately. In contrast, wave amplitude remained significantly associated with increased risk of amputation after controlling for each pressure variable (P<0.05). TcPO2 < or = 10 mmHg and < or = 20 mmHg are related significantly to increased risk of amputation in patients with skin lesions and arterial disease, but these relative risks are similar in magnitude or smaller than those associated with low cutoff values of pressures, pressure indices or pulse wave amplitude. Low wave amplitude does provide significant information in addition to peripheral pressures with respect to the risk of amputation. On the other hand, low tcPO2 does not provide significant information in addition to peripheral pressures or pulse wave amplitude.
Food group consumption and self-rated diets of elderly community-dwelling canadian men. the manitoba follow-up study
BACKGROUND: Healthy eating perceptions and food group consumption practices of elderly men are largely unexplored. Understanding eating practices of elderly men and how this relates to their quality of life is important for the implementation of practical health promotion strategies. OBJECTIVE: Examine the frequency of food items consumed (daily, most days, or rarely), and the association of self-rated diet and food group consumption of elderly community-dwelling Canadian men. DESIGN: Self-reported nutrition data, obtained via mailed questionnaires in spring 2000, from 1,211 Canadian male respondents (mean age 82 years) participating in the Manitoba Follow-up Study were analyzed. RESULTS: Respondents consumed vegetables/fruit (64%) and grain products (58%) daily, and meat/alternatives (81%) most days. Milk products were equally consumed daily (47%) or most days (47%). Using multiple logistic regression models, controlling for demographic variables, a positive relationship was found between the increasing consumption of vegetables/fruit and grain products and healthier self-rated diets. Daily consumption of vegetables/fruit or grain products significantly predicted healthier self-rated diets compared to men consuming those food categories most days, OR=2.42 (95%CI=1.88, 3.11) and OR=2.18 (95%CI=1.70, 2.79), respectively. Those consuming meat/alternatives or milk products \"daily\" or \"rarely\" rated their diets as healthier than those consuming these items \"most days\". CONCLUSION: Daily consumption of fruits, vegetables, and grain products is viewed as important for overall health and is positively associated with healthier self-rated diets among elderly Canadian men.
Respiratory Symptoms in a Susceptible Population Due to Burning of Agricultural Residue
To identify characteristics associated with respiratory symptoms due to an episode of air pollution. Mail survey. In October 1992, the population of the city of Winnipeg was exposed to elevated levels of particulate matter (total and < 10 μm size), carbon monoxide, nitrogen dioxide, and volatile organic compounds due to smoke from adjacent fields where farmers were burning agricultural residue (straw and stubble). We surveyed 428 participants in the ongoing Lung Health Study (35 to 64 years old, both sexes) with mild to moderate airways obstruction (mean FEV1 percent predicted 73±12%), and a high level of airways hyperreactivity (23% of men and 37% of women). While 37% of subjects were not bothered by smoke at all, 42% reported that symptoms (cough, wheezing, chest tightness, shortness of breath) developed or became worse due to the air pollution episode and 20% reported that they had breathing trouble. Those with symptoms were more likely to be female than male and were more likely to be ex-smokers than smokers. Subjects with asthma and chronic bronchitis were also more likely affected. The degree of airways obstruction and the level of bronchial hyperresponsiveness were not associated with increased susceptibility. Gender, smoking habit, and respiratory symptoms but not bronchial hyperresponsiveness or the degree of airways obstruction are factors influencing susceptibility to symptoms due to air pollution in adult smokers and former smokers.
Prevalence of asthma symptoms among adults aged 20-44 years in Canada
Reported prevalence rates of asthma vary within and between countries around the world. These differences suggest environmental factors in addition to genetic factors in the cause of the disease and may provide clues for preventive strategies. We examined the variability of asthma-related symptoms and medication use among adults in 6 sites across Canada (Vancouver, Winnipeg, Hamilton, Montreal, Halifax and Prince Edward Island) and compared our findings with those from sites that had participated in a recent European survey. We used the same sampling strategy and standardized questionnaire as those used in the European Community Respiratory Health Survey (ECRHS). The 6 Canadian sites were selected to represent different environments with respect to climate, air pollution and occupational exposure. Community-based samples of 3000 to 4000 people aged 20-44 years were randomly selected in each site. Subjects were asked to complete the questionnaire by mail between March 1993 and November 1994. Prevalence rates (and 95% confidence intervals [CIs]) of asthma symptoms, self-reported asthma attacks and use of asthma medication were compared across the Canadian sites and with sites that had participated in the ECRHS. The overall response rate of those selected to receive the questionnaire was 86.5% (range 74.5%-92.8%). The prevalence rates of most asthma symptoms varied significantly among the Canadian sites. For instance, 21.9% (Montreal) to 30.4% (Halifax) of the men and 24.0% (Vancouver) to 35.2% (Halifax) of the women reported wheezing in the year before the survey. Depending on the site, 4.4% to 6.3% of the men and 5.2% to 9.5% of the women reported an asthma attack in the last year, and 4.0% to 6.1% of the men and 4.9% to 9.7% of the women were currently using asthma medication. Prevalence rates of symptoms, asthma attacks and medication use did not change with age, but they were higher among women than among men. Compared with the results from the ECRHS sites, those from the Canadian sites were among the highest. Significant variation in the prevalence of asthma symptoms, asthma attacks and use of asthma medication between Canadian sites and international sites suggests environmental influences. Different combinations of factors in different sites may be responsible for the high prevalence rates and should be the subject of further research to guide clinical management and public health intervention.
The Official Chronicler in the Fifteenth Century: A brief survey of Western Europe
Presents a survey of the operation of chroniclers in the pay of the crown and their associated duties and activities across Western Europe. Also considered are those who, although they do not receive a salary, write out of convictions and beliefs which emanate from royal policy. The article concentrates principally on that group of chroniclers, lay or ecclesiastical, who combine the duties of secretary, councillor, diplomatic envoy and historian. The writing of official history in the 15C in most cases is not the exclusive employment of an individual in the pay of the crown, but just one of the possible obligations.
The Natural History of Primary First-Degree Atrioventricular Heart Block
The long-term prognosis of first-degree heart block in the absence of organic heart disease has not been clearly defined. We addressed this question in a 30-year longitudinal study of 3983 healthy men. We identified 52 cases that were present on entry into the study and 124 incident cases during follow-up. The incidence rose steadily after age 40 and was 1.13 per 1000 person-years over the entire period. Two thirds of the cases had only moderate prolongation of the PR interval (0.22 to 0.23 second). We compared four age-matched controls with each case for histories of scarlet fever, rheumatic fever, diphtheria, smoking, blood pressure, and body-mass index. No significant differences (P>0.05) were found. Likewise, mortality from all causes did not differ between cases and controls. Although somewhat higher rates of morbidity and mortality from ischemic heart disease were observed in the cases than in the controls, the differences were not significant. Progression to higher grades of heart block occurred in only two cases. In view of the prognostic findings and the rare occurrence of advanced degrees of heart block, we conclude that primary first-degree heart block with moderate PR prolongation is a benign condition. This conclusion may not apply, however, to persons with more marked prolongation of the PR interval, a very rare condition. (N Engl J Med 1986; 315:1183–7.) PHYSICIANS need to understand the importance of abnormalities of the electrocardiogram in \"normal\" persons, because electrocardiographic examinations are often carried out for life-insuranceance or employment purposes, for preoperative evaluation, or as part of a routine annual check-up. The advent of exercise testing and Holter monitoring has greatly increased the detection of abnormalities of rhythm and conduction. One such abnormality, the prognostic implications of which are poorly understood, is primary first-degree atrioventricular heart block. In this paper, the term \"primary\" applies to abnormality of cardiac conduction occurring in the absence of other clinically manifest heart disease. In the largest study of . . .
Robert Langton, pilgrim (1470-1524)
A certain Robert Langton, clerk, who made an overland pilgrimage to Spain and Italy, possibly in the early years of the 16C, left an account of his travels, frustratingly limited in its observations of the exotic worlds he had travelled through. For him the principal matter of the pilgrimage was the visit to holy shrines and their relics along the chosen routes. The article considers what could have led him to contemplate such a voyage.
Change in health risk perception following community intervention in Central Havana, Cuba
It is increasingly recognized that individual values, beliefs and behavior operate within a social context. There is growing consensus that local perceptions and indigenous knowledge should be important elements in the evaluation of programs aimed at improving health. Thus, an assessment of changes in health risk perception was included in the evaluation of a multi-component intervention project undertaken between 1996 and 1999 aimed at improving the health and well-being of residents in the inner city community of Cayo Hueso, in Centro Habana, Cuba. The community intervention involved a tremendous mobilization of government and non-governmental organizations, to promote social and cultural activities and address deficiencies in housing, water supply, waste disposal and street illumination. Prior to the interventions, 365 adults were surveyed regarding their perceived health risks regarding 41 health determinants, scored on four-point Likert scales ranging from ‘without risk’ to ‘very risky’. A factor analysis of these data classified perception of risk into five areas: social environment, threats to personal health, lifestyle choices, environmental sanitation and housing conditions. The objective of the current analysis was to determine if there were changes in the level of perceived risk to health over the 5 years pre- versus post-intervention in Cayo Hueso, and if so, whether these changes were significantly different from changes seen during the same 5-year period in Colón, another community in Centro Habana not receiving focused interventions. During the first quarter of 2001, 1703 individuals living in 654 households in Cayo Hueso and Colón were interviewed in their homes using an enhanced version of the 1996 risk perception instrument. Ordinal logistic regression models, adjusted for age, gender and years of education, were fit to assess change in health risk perception between 1996 and 2001. Significant declines in perceived health risk were found in both Cayo Hueso and Colón within all five domains, with significantly greater declines in many areas in Cayo Hueso compared with Colón, particularly with respect to housing-related health risks, indeed the main target of the intervention. Risk perception surveys are useful characterizations of widely held views in a target population. Our findings of decreased perceived health risk following public health, physical and social interventions to improve health suggests that this line of inquiry merits consideration in planning evaluations of multi-sectoral community-based health promotion interventions.