recrisk.ratio: Recurrence risk ratio of familial recurrence risk
In fam.recrisk: Familial Recurrence Risk

Description Usage Arguments Details Value Author(s) References Examples

View source: R/recrisk.R

Estimate the recurrence risk ratio of familial recurrence risk divided by population prevalence, based on results returned from fam.recrisk

1	recrisk.ratio(fit)

fit

list returned from fam.recrisk

The recurrence risk is based on a truncated binomial density, and the prevalence is the frequency of disease in the sample. If the sample of families in not a random sample from a population, the prevalence will be biased, and merely represent the frequency of disease in the sample.

A list with the following values

`rr`	ratio of recurrence risk divided by population prevalence
`var.rr`	variance of rr

Schaid DJ, Sinnwell JP.

Schaid DJ, McDonnell SK, Thibodeau SN. Familial recurrence risk with varying amount of family history. Under review at Genetic Epidemiology, 2018.

  s <- c(4,  8,  6,  6,  10, 8,  7,  8,  5,  6,  10, 4,  4,  8,  6,  8,  4,  5,  9, 
         9,  5,  4,  4,  7,  3,  3,  9,  5,  3,  3,  4,  6,  8,  3,  5,  8,  6,  8, 9,  3)
  a <- c(3, 4, 2, 5, 4, 5, 3, 4, 3, 3, 8, 2, 0, 3, 4, 5, 2, 3, 4, 2, 1, 1,
         1, 1, 1, 0, 0, 0, 0, 0, 1, 0, 2, 0, 0, 1, 0, 2, 3, 0)
  fit <- fam.recrisk(s,a,1)
  recrisk.ratio(fit)