Thursday, October 18, 2012

longitudinal descriptive data

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"Clinical data has revealed a higher proportion of
individuals who have died than among the general population
of the same age," explained Ulrich John, professor of
epidemiology and social medicine at the University of
Greifswald.
John and colleagues gathered a random sample of 4,070
respondents aged between 18 and 64 years. Of them, 153 were
identified as alcohol dependent (AD). Of these, 149 (119
males, 30 females) were followed for 14 years.
"Gender-specific data is rare, even among clinical samples.
Furthermore, these studies have two main limitations," adds
John, according to the journal Alcoholism: Clinical &
Experimental Research.
"First, we know that only a minority of AD individuals
receive treatment. We lack knowledge about how this selection
occurs. Second, we have no evidence about the potential
effects of specialized alcoholism treatment on mortality
among people who had been diagnosed AD," says John, according
to a University Medicine statement.
"We would like to know whether treatment might enhance
survival time. For ethical reasons, no controlled trials are
possible. Thus, longitudinal descriptive data as in this
study are helpful," says John, study co-author.
John adds that Germany is well-suited for this kind of
research since it is mandatory for residents to provide vital
status data.