data.Italian.bladder.cancer {apc} | R Documentation |
Italian bladder cancer data
Description
Function that organises Italian bladder data in apc.data.list
format.
The data set is taken from table IV of Clayton and Schifflers (1987a), which contains age-specific incidence rates (per 100,000 person-years observation) of bladder cancer in Italian males during the period 1955-1979. Numerators are also available. The original source was the WHO mortality database.
The data set is in "AP"-format.
Usage
data.Italian.bladder.cancer()
Value
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. "Italian bladder cancer". |
Author(s)
Bent Nielsen <bent.nielsen@nuffield.ox.ac.uk> 8 Sep 2015 (24 Oct 2013)
Source
Table IV of Clayton and Schifflers (1987a).
References
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.
See Also
General description of apc.data.list
format.
Examples
#########################
## It is convient to construct a data variable
data <- data.Italian.bladder.cancer()
## To see the content of the data
data