ORmn1 | R Documentation |

Odds ratio and its score confidence interval of two groups without stratification

ORmn1(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 and its score confidence interval of two groups. The confidence interval is asymmetric and there is no standard error in the output. This does not support stratification. This implementation uses nlminb minimization function which usually gives about 7 significant digits. PropCIs::orscoreci function uses incremental or decremental search by the factor of 1.001 which gives only about 3 siginicant digits.

The result is a data.frame. There is no standard error.

`odd1` |
odd from the first group, y1/(n1 - y1) |

`odd2` |
odd from the second group, y2/(n2 - y2) |

`OR` |
odds ratio, odd1/odd2 |

`lower` |
lower confidence limit of OR |

`upper` |
upper confidence limit of OR |

Kyun-Seop Bae k@acr.kr

Miettinen O, Nurminen M. Comparative analysis of two rates. Stat Med 1985;4:213-26

`RDmn1`

, `RRmn1`

, `RDmn`

, `RRmn`

, `ORmn`

ORmn1(104, 11037, 189, 11034)

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