schizophrenia {psyntur} | R Documentation |
Age of Onset of Schizophrenia Data
Description
Data on sex differences in the age of onset of schizophrenia.
Usage
schizophrenia
Format
A data frame with 251 observations on the following 2 variables.
- age
Age at the time of diagnosis.
- gender
A categorical variable with values
female
andmale
Details
A sex difference in the age of onset of schizophrenia was noted by Kraepelin (1919). Subsequently epidemiological studies of the disorder have consistently shown an earlier onset in men than in women. One model that has been suggested to explain this observed difference is known as the subtype model which postulates two type of schizophrenia, one characterised by early onset, typical symptoms and poor premorbid competence, and the other by late onset, atypical symptoms, and good premorbid competence. The early onset type is assumed to be largely a disorder of men and the late onset largely a disorder of women.
Source
This data set was taken from the
HSAUR
R
package. From the description in that package, the original is E.
Kraepelin (1919), Dementia Praecox and Paraphrenia. Livingstone,
Edinburgh.