effectsize (version 0.4.0)

oddsratio_to_riskratio: Convert between Odds ratios and Risk ratios

Description

Convert between Odds ratios and Risk ratios

Usage

oddsratio_to_riskratio(OR, p0, log = FALSE)
riskratio_to_oddsratio(RR, p0, log = FALSE)

Arguments

OR, RR

Risk ratio of p1/p0 or Odds ratio of odds(p1)/odds(p0), possibly log-ed.

p0

Baseline risk

log

Take in or output the log of the ratio (such as in logistic models).

References

Grant, R. L. (2014). Converting an odds ratio to a range of plausible relative risks for better communication of research findings. Bmj, 348, f7450.

Examples

# NOT RUN {
p0 <- 0.4
p1 <- 0.7

(OR <- probs_to_odds(p1) / probs_to_odds(p0))
(RR <- p1 / p0)

riskratio_to_oddsratio(RR, p0 = p0)
oddsratio_to_riskratio(OR, p0 = p0)

# }