ic_tail: Credibility interval limits for the information component

In vigicaen: 'VigiBase' Pharmacovigilance Database Toolbox

Credibility interval limits for the information component

Description

Compute the Information Component credibility interval, typically the lower end of the 95% CI, also known as the IC025.

Usage

ic_tail(n_obs, n_exp, p = 0.025)

Arguments

n_obs	Number of observed cases
n_exp	Number of expected cases (see Details)
p	End of chosen credibility interval

Details

The ends of the credibility interval of the information component are estimated with the gamma distribution. n_exp is defined as n_drug * n_event / n_total for the basic IC (formula is different for interactions) Do not add +.5 to n_obs and n_exp as it is automatically done in the function. By default, IC025 is computed. Change p for different ends. It may be easier to use compute_dispro(), which internally calls this function.

Value

A numeric vector. The lower end of the credibility interval

See Also

compute_dispro()

Examples

ic_tail(n_obs = 12,
        n_exp = 5)

vigicaen documentation built on April 3, 2025, 8:55 p.m.