The Koopman asymptotic score confidence interval for the ratio of probabilities

Described in Chapter 4 "The 2x2 Table"

Koopman_asymptotic_score_CI_2x2(n, alpha = 0.05)

Arguments

n: the observed counts (a 2x2 matrix)
alpha: the nominal level, e.g. 0.05 for 95% CIs

Value

An object of the contingencytables_result class, basically a subclass of base::list(). Use the utils::str() function to see the specific elements returned.

Note

This versions uses the score test statistic of the Miettinen-Nurminen interval without the variance correction term.

Table orientation

In most study designs, rows designate a grouping of the data, for instance, into treatment or exposure groups, while the columns indicate a dichotomous outcome, usually with the first column representing the outcome of interest. This designation of rows and columns may not be relevant in all study designs, please see the introduction to chapter 4 for details.

Examples

Koopman_asymptotic_score_CI_2x2(perondi_2004)
#> Koopman asymptotic score CI: estimate = 7.0000 (95% CI 1.2209 to 42.5757)
Koopman_asymptotic_score_CI_2x2(ritland_2007)
#> Koopman asymptotic score CI: estimate = 0.0000 (95% CI 0.0000 to 0.9619)