Exact(10)
The mean and variance of age of onset associated with this curve are μ = αβ = 55 and σ2 = αβ2 = 306.
To generalize our conclusions to diseases characterized by different patterns of age of onset we also explore the effect of changes in the mean and variance of age of onset on selection.
To explore implications of changes in the mean or variance of age of onset age for the selection coefficient, we altered both and calculated the resulting s and Nemin.
We therefore show 1) that negative selection on BRCA1 alleles is likely to have operated during human history and 2) that negative selection is likely to apply for most alleles leading to late-onset diseases, as it occurs across a broad range of mean and variance of age of onset.
ANOVA was applied to compare the variance of age.
In general, increased taxonomic sampling reduced the variance of age estimates.
Similar(50)
The low mean and relatively high variance of ages at death in Eastern Europe have been discussed in detail by D'Albis et al. (2014).
Similarly, taking f y| a) as the conditional density of remaining lifespans, one may calculate the variance of age-specific remaining life spans (thanatological age), where e(a) is remaining life expectancy at age a: The variance of y given survival to age a is and this function will have some non-monotonic pattern over age (in human populations) that remains to be explored.
To quantitate the amount of individual variation that is also visually apparent by microscopy (Movies 3- 5), we assayed individual animals rather than pools of animals, giving us insight into the variance of age-related genome copy number variation between individual worms.
As expected, the methods assuming relaxed rates (UCLN and NPRS-LOG) had greater variance of ages than the methods assuming clock-like rates (CLO Cand GRMD).
The relationships of three existing variances of age are described and a new set of variances and the degree of mixing are defined.
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