Cross-product odds ratio for a 2 x 2 table, with a Woolf interval

Usage

OddsRat(a, b, c, d, conf_level = 0.95, correction = 0)

Arguments

a, b, c, d: cell counts: exposed cases, exposed controls, unexposed cases, unexposed controls
conf_level: two-sided confidence level for the Woolf interval
correction: constant added to every cell (0.5 = Haldane-Anscombe)

Value

list(estimate, log_estimate, se_log, ci_lower, ci_upper, z, p_value, n)

Examples

OddsRat(10, 20, 15, 25)
#> $estimate
#> [1] 0.8333333
#> 
#> $log_estimate
#> [1] -0.1823216
#> 
#> $se_log
#> [1] 0.5066228
#> 
#> $ci_lower
#> [1] 0.3087313
#> 
#> $ci_upper
#> [1] 2.249349
#> 
#> $z
#> [1] -0.3598763
#> 
#> $p_value
#> [1] 0.7189396
#> 
#> $n
#> [1] 70
#> 
#> $conf_level
#> [1] 0.95
#> 
#> $method
#> [1] "Cornfield (1951) cross-product odds ratio, Woolf (1955) log-scale variance 1/a+1/b+1/c+1/d"
#>