منابع مشابه
Indices of relative weight and obesity.
Analyses are reported on the correlation with height and with subcutaneous fat thickness of relative weight expressed as per cent of average weight at given height, and of the ratios weight/height, weight/height squared, and the ponderal index (cube root of weight divided by height) in 7424 ‘healthy’ men in 12 cohorts in five countries. Analyses are also reported on the relationship of those in...
متن کاملRelative merits of the weight-corrected-for-height indices.
Based on weight and height data on 35.523 subjects representing both sexes, ages 18 yr and over, and five diverse ethnic populations, the obesity index W/H (p is derived from the observed weight-height data) was compared with the traditional obesity indices (W/H. W/H2, W/ H. and H/W”t) in terms of maximum correlation with weight and minimum correlation with height (i.e., unbiased by height). Of...
متن کاملRelative Diversity Indices
Diversity indices are frequently applied in the form of ratios of absolute diversity to the maximum diversity possible. Regardless of whether the maximum diversity is defined to be limited by the number of species or by the number of individuals present, the resultant indices can be shown to possess mathematically undesirable qualities. All such indices, including equitability as measured by Pi...
متن کاملRelative Morse Indices, Fredholm Indices, and Group Velocities
We discuss Fredholm properties of the linearization of partial differential equations on cylindrical domains about travelling and modulated waves. We show that the Fredholm index of each such linearization is given by a relative Morse index which depends only on the asymptotic coefficients. Several strategies are outlined that help to compute relative Morse indices using crossing numbers of spa...
متن کاملIndices of obesity derived from height and weight in two Polynesian populations.
Khosla and Lowe (1967) have drawn attention to the usefulness of a reliable index of obesity derived from height and weight. From their analysis of data on 5,000 British men aged 15 to 64 years, they decided that the best index was weight divided by the square of height, thus confirming the conclusions of B0e, Humerfelt, and Wedervang (1957) and of Billewicz, Kemsley and Thomson (1962). Their c...
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ژورنال
عنوان ژورنال: International Journal of Epidemiology
سال: 2014
ISSN: 0300-5771,1464-3685
DOI: 10.1093/ije/dyu058