OR | R Documentation |

Odds Ratio between two groups

```
OR(y1, n1, y2, n2, conf.level=0.95)
```

`y1` |
positive event count of test (the first) group |

`n1` |
total count of the test (the first) group |

`y2` |
positive event count of control (the second) group |

`n2` |
total count of control (the second) group |

`conf.level` |
confidence level |

It calculates odds ratio of two groups. No continuity correction here. If you need percent scale, multiply the output by 100.

The result is a data.frame.

`odd1` |
proportion from the first group |

`odd2` |
proportion from the second group |

`OR` |
odds ratio, odd1/odd2 |

`SElog` |
standard error of log(OR) |

`lower` |
lower confidence limit of OR |

`upper` |
upper confidence limit of OR |

Kyun-Seop Bae k@acr.kr

`RD`

, `RR`

, `RDmn1`

, `RRmn1`

, `ORmn1`

, `RDmn`

, `RRmn`

, `ORmn`

```
OR(104, 11037, 189, 11034) # no continuity correction
```

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