Lowest Mortality (lowest + mortality)

Distribution by Scientific Domains


Selected Abstracts


Dearly Departed: How Often Do Congregations Close?

JOURNAL FOR THE SCIENTIFIC STUDY OF RELIGION, Issue 2 2008
SHAWNA L. ANDERSON
We establish for the first time a national mortality rate for religious congregations by determining the 2005 status of congregations in the 1998 National Congregations Study sample. The annual mortality rate for religious congregations is 1 percent, which is among the lowest mortality rates ever observed for any type of organization. This unusually low mortality rate probably indicates an organizational population whose weakest members live on in a weakened state rather than an organizational population that is unusually robust all the way down to its most vulnerable members. [source]


Lower Systolic Blood Pressure Is Associated with Greater Mortality in People Aged 85 and Older

JOURNAL OF AMERICAN GERIATRICS SOCIETY, Issue 10 2008
Lena Molander Bsc
OBJECTIVES: To investigate the association between blood pressure and mortality in very old people. DESIGN: Population-based cohort study. SETTING: County of Västerbotten, Sweden. PARTICIPANTS: Half of all subjects aged 85 and all of those aged 90 and 95 and older (N=348) in one urban and five rural municipalities in the north of Sweden. MEASUREMENTS: Among others, supine blood pressure, Mini-Mental State Examination, Barthel Index of activities of daily living, Mini Nutritional Assessment, and body mass index. Information on diagnoses, medications, and 4-year mortality was collected. Associations between blood pressure and mortality were investigated using Cox regression analyses, controlling for a number of diagnoses and health factors. RESULTS: Baseline systolic blood pressure (SBP), diastolic blood pressure, and pulse pressure were all inversely associated with mortality within 4 years according to univariate analysis. SBP was the strongest predictor. In Cox regression analyses, low SBP (,120 mmHg) correlated with greater 4-year all-cause mortality alone and when controlling for health status. This connection persisted after exclusion of deaths within the first year. There was a tendency toward a U-shaped mortality curve for the adjusted model, with SBP of 164.2 mmHg (95% confidence interval=154.1,183.8 mmHg) being associated with the lowest mortality. CONCLUSION: Lower SBP seems to be associated with greater mortality in people aged 85 and older, irrespective of health status. There are indications of a U-shaped correlation between SBP and mortality, and the optimal SBP for this age group could be above 140 mmHg. [source]


The host plant range of the pea aphid subspecies Acyrthosiphon pisum ssp. destructor (Johnson) (Hom., Aphididae)

JOURNAL OF APPLIED ENTOMOLOGY, Issue 6 2002
R. I. K. McVean
The plant species used were: Lotus uliginosus, Medicago sativa, Melilotus officinalis, Ononis repens, Sarothamnus scoparius, Trifolium hybridum, Trifolium pratense, Trifolium repens, Vicia cracca and Vicia faba. Vicia faba and Trifolium hybridum were the plants on which aphids reached the greatest size, took the least time to reach maturity, and experienced the lowest mortality. The time taken for the aphids to develop to maturity was negatively correlated with adult size, whereas survival to maturity was positively correlated with adult size. The host preference of the aphids was also assessed. The plant species selected as hosts by alatae were those on which their offspring performed best. [source]


Impact of Age on Associations Between Weight and Mortality

NUTRITION REVIEWS, Issue 5 2000
June Stevens Ph.D.
The effect of age on the weight associated with the lowest mortality and the effect of age on the mortality risk associated with obesity are issues fraught with methodologic complexities. Current evidence supports the notion that the body mass index associated with the lowest mortality falls within the range of 18.5 to 24.9 in men and women between the ages of 30 and 74. The impact of age on the mortality risk associated with obesity changes with age, however, and the direction of the trend depends upon the measure used. [source]


Lipid-enhanced pollen and lipid-reduced flour diets and their effect on the longevity of honey bees (Apis mellifera L.)

AUSTRALIAN JOURNAL OF ENTOMOLOGY, Issue 3 2007
Rob Manning
Abstract, As eucalypt pollens contain low concentrations of lipid, enhancing pollen diets with fatty acids was hypothesised to improve honey bee longevity. Different concentrations of linoleic and oleic acid added to eucalypt pollen were trialled in small cages containing approximately 1400 bees each. Bees fed diets of redgum (Corymbia calophylla (Lindl.) Hill & Johnson, formerly Eucalyptus calophylla) pollen had the lowest mortality of 22 diets tested for 6 weeks and had life spans (50%) greater than 42 days. Linoleic acid mixed with a redgum diet in concentrations >6% corresponded to life spans of 24,25 days. Bee longevity appeared to be more sensitive to oleic acid as life spans decreased to 15,21 days when diets had concentrations >2%. The life spans of bees fed soya bean flour were 26 days on low (0.6% lipid) fat, 19 days on defatted and 20 days on full-fat diets. Bees fed lupin flour had a life span of 23 days. Adding redgum pollen to lupin flour caused increased mortality, but addition of pollen to soya bean flour was beneficial. Thus, beekeepers who choose to utilise soya bean or lupin flours as protein substitutes to pollen will have bees with reduced longevity. Bees fed redgum pollen that had been dried, crushed, irradiated and hermetically stored in a cool room for several years had similar longevity to bees fed fresh-collected and frozen redgum pollen. [source]