lungDK: Male lung cancer incidence in Denmark

In Epi: Statistical Analysis in Epidemiology

Male lung cancer incidence in Denmark

Description

Male lung cancer cases and population riks time in Denmark, for the period 1943–1992 in ages 40–89.

Usage

data(lungDK)

Format

A data frame with 220 observations on the following 9 variables.

A5:	Left end point of the age interval, a numeric vector.
P5:	Left enpoint of the period interval, a numeric vector.
C5:	Left enpoint of the birth cohort interval, a numeric vector.
up:	Indicator of upper trianges of each age by period rectangle in the Lexis diagram. (up=(P5-A5-C5)/5).
Ax:	The mean age of diagnois (at risk) in the triangle.
Px:	The mean date of diagnosis (at risk) in the triangle.
Cx:	The mean date of birth in the triangle, a numeric vector.
D:	Number of diagnosed cases of male lung cancer.
Y:	Risk time in the male population, person-years.

Details

Cases and person-years are tabulated by age and date of diagnosis (period) as well as date of birth (cohort) in 5-year classes. Each observation in the dataframe correponds to a triangle in a Lexis diagram. Triangles are classified by age and date of diagnosis, period of diagnosis and date of birth, all in 5-year groupings.

Source

The Danish Cancer Registry and Statistics Denmark.

References

For a more thorough exposition of statistical inference in the Lexis diagram, see: B. Carstensen: Age-Period-Cohort models for the Lexis diagram. Statistics in Medicine, 26: 3018-3045, 2007.

Examples

data( lungDK )
# Draw a Lexis diagram and show the number of cases in it.
attach( lungDK )
Lexis.diagram( age=c(40,90), date=c(1943,1993), coh.grid=TRUE )
text( Px, Ax, paste( D ), cex=0.7 )

Epi documentation built on April 25, 2023, 9:09 a.m.