Epi (version 1.1.20)

DMlate: The Danish National Diabetes Register.

Description

These two datasets each contain a random sample of 10,000 persons from the Danish National Diabetes Register. DMrand is a random sample from the register, whereas DMlate is a random sample among those with date of diagnosis after 1.1.1995.

Usage

data(DMrand)
       data(DMlate)

source

Danish National Board of Health.

Details

All dates are given in fractions of years, so 1997.00 corresponds to 1 January 1997 and 1997.997 to 31 December 1997.

References

B Carstensen, JK Kristensen, P Ottosen and K Borch-Johnsen: The Danish National Diabetes Register: Trends in incidence, prevalence and mortality, Diabetologia, 51, pp 2187--2196, 2008. In partucular see the appendix at the end of the paper.

Examples

data(DMlate)
str(DMlate)
dml <- Lexis( entry=list(Per=dodm, Age=dodm-dobth, DMdur=0 ),
               exit=list(Per=dox),
        exit.status=factor(!is.na(dodth),labels=c("DM","Dead")),
               data=DMlate )
# Split follow-up at Insulin
dmi <- cutLexis( dml, cut=dml$doins, new.state="Ins", pre="DM" )
summary( dmi )
# Introduce a new timescale
dmi <- cutLexis( dml, cut=dml$doins, new.state="Ins", pre="DM", new.scale=TRUE )
head( dmi )
# Split the states following insulin and explictily name the new timescale
dmi <- cutLexis( dml, cut=dml$doins, new.state="Ins",
                      pre="DM", new.scale="Instime", split.states=TRUE )
summary( dmi )