data.Belgian.lung.cancer {apc} | R Documentation |

Function that organises Belgian lung cancer data in `apc.data.list`

format.

The data set is taken from table VIII of Clayton and Schifflers (1987a), which contains age-specific incidence rates (per 100,000 person-years observation) of lung cancer in Belgian females during the period 1955-1978. Numerators are also available. The original source was the WHO mortality database.

The data set is in "AP"-format. The original data set is unbalanced since the first four period groups cover 5 years, while the last covers 4 years. The primary data set has 4 period groups, which is obtained when using the function without arguments or with argument `unbalanced=FALSE`

. The secondary data set has 5 uneven sized period groups, wwhich is obtained when using the function with argument `unbalanced=TRUE`

. The `apc.package`

is at present not aimed at such unbalanced data.

data.Belgian.lung.cancer(unbalanced = FALSE)

`unbalanced` |
logical. If TRUE (default), the last 4-year group column of the data is ignored. |

The value is a list in `apc.data.list`

format.

`rates` |
matrix of mortality rates. This is not needed for the |

`response` |
matrix of cases |

`dose` |
matrix of cases/rates |

`data.format` |
logical equal to "AP". Data organised with age-groups in rows and period-groups in columns. |

`age1` |
numeric equal to 25. This is the label for the first age group covering ages 25-29. |

`per1` |
numeric equal to 1955. This is the label for the first period group covering period 1955-1959. |

`coh1` |
NULL. Not needed when data.format="AP" |

`unit` |
numeric equal to 5. This is the width of the age and period groups. |

`per.zero` |
NULL. Not needed when data.format="AP" |

`per.max` |
NULL. Not needed when data.format="AP" |

`time.adjust` |
0. Thus age=25 in period=1955 corresponds to cohort=1955-25+0=1930, and indeed the centers of the age and period groups, that is age=27 and period=1957 translate into cohort=1957-27+0=1930. |

`label` |
character. "Belgian lung cancer". |

Bent Nielsen <bent.nielsen@nuffield.ox.ac.uk> 8 Sep 2015 (24 Oct 2013)

Table VIII of Clayton and Schifflers (1987a).

Clayton, D. and Schifflers, E. (1987a) Models for temperoral variation in cancer rates. I: age-period and age-cohort models. *Statistics in Medicine* 6, 449-467.

General description of `apc.data.list`

format.

######################### ## It is convient to construct a data variable data <- data.Belgian.lung.cancer() ## To see the content of the data data

[Package *apc* version 2.0.0 Index]