# oddsratio_to_riskratio: Convert Between Odds Ratios and Risk Ratios In effectsize: Indices of Effect Size

 oddsratio_to_riskratio R Documentation

## 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. `OR` can also be a logistic regression model. `p0` Baseline risk `log` Take in or output the log of the ratio (such as in logistic models). `...` Arguments passed to and from other methods.

### Value

Converted index, or if `OR` is a logistic regression model, a parameter table with the converted indices.

### 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.

`oddsratio()` and `riskratio()`

Other convert between effect sizes: `d_to_r()`, `diff_to_cles`, `eta2_to_f2()`, `odds_to_probs()`

### Examples

```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)

m <- glm(am ~ factor(cyl),
data = mtcars,
family = binomial()
)
oddsratio_to_riskratio(m)
```

effectsize documentation built on Oct. 31, 2022, 5:06 p.m.