cancerradarr (version 1.3.1)

standardized_incidence_rate_ratio: Age-standardized incidence rates ratio (asirr)

Description

Age-standardized incidence rates ratio (asirr)

Usage

standardized_incidence_rate_ratio(
  ncan,
  py,
  ncanref,
  pyref,
  pystd,
  ncan.min = 5
)

Value

a 1 line and 3 column data.frame containing the pir (est) and associated 95% CI (lci, uci)

Arguments

ncan

integer, (age-specific) number of cancers in the population of interest

py

integer, (age-specific) person-year in the the population of interest

ncanref

integer, (age-specific) number of cancers in the reference population

pyref

integer, (age-specific) person-year in the the reference population

pystd

numeric, (age-specific) standard population person-years (e.g. standard world population)

ncan.min

integer, minimum number of observation required not to mask the CI's out

Age-standardized incidence rate ratio (asirr) and associated 95% confidence interval are computing Armitage and Berry (1987) formula. asird is a summary statistics that should be computed per group of individuals providing age specific counts.

References

Boyle P, Parkin DM. Cancer registration: principles and methods. Statistical methods for registries. IARC Sci Publ. 1991;(95):126-58. PMID: 1894318.

Examples

ncan <- 1:10
py <- 101:110
ncanref <- 41:50
pyref <- 251:260
pystd <- 10:1
ncan.min <- 5
standardized_incidence_rate_ratio(ncan, py, ncanref, pyref, pystd, ncan.min)
standardized_incidence_rate_ratio(ncan, py, ncanref, pyref, pystd, sum(ncan) + 1)