intervalo_taxa: Calculate exact Poisson confidence intervals for rates

In datasus: An Interface to Brazilian Public Health Data

Calculate exact Poisson confidence intervals for rates

Description

Uses chi-squared quantiles for exact Poisson count limits and divides them by the supplied denominator. Event counts must be whole numbers.

Usage

intervalo_taxa(
  eventos,
  populacao,
  multiplicador = 1e+05,
  confianca = 0.95,
  zero_denominador = c("na", "erro")
)

Arguments

eventos	Non-negative event counts.
populacao	Non-negative population or person-time denominators.
multiplicador	Scale of the rate, default 100,000.
confianca	Confidence level between 0 and 1.
zero_denominador	How to handle zero denominators: '"na"' returns 'NA', while '"erro"' stops.

Value

A data frame with event counts, denominators, rates and lower and upper confidence limits.

Examples

intervalo_taxa(c(0, 10), c(10000, 10000))

datasus documentation built on Oct. 7, 2026, 1:07 a.m.