Hostname: page-component-cd9895bd7-fscjk Total loading time: 0 Render date: 2024-12-25T05:06:10.578Z Has data issue: false hasContentIssue false

The Morbidity Rate and Environmental Influence in Monozygotic Co-twins of Schizophrenics

Published online by Cambridge University Press:  29 January 2018

K. Abe*
Affiliation:
M.R.C. Psychiatric Genetics Research Unit, Institute of Psychiatry, Maudsley Hospital, London, S.E.5; Department of Psychiatry, Osaka City University Medical School, Abenoku, Osaka, Japan

Extract

The purpose of this paper is to present some of the findings concerning the morbidity rate of monozygotic co-twins of schizophrenics and the possible influence on it of environmental factors. The work is based on a statistical study of the clinical records available at the MRC Psychiatric Genetics Research Unit.

Type
Environmental Effects
Copyright
Copyright © Royal College of Psychiatrists, 1969 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Abe, K. (1966). “Susceptibility to psychoses and precipitating factors; a study of families with two or more psychotic members.” Psychiat. Neurol., 151, 276290.Google Scholar
Gottesman, I. I., and Shields, J. (1966). “Schizophrenia in twins: 16 years' consecutive admissions to a psychiatric clinic.” Brit. J. Psychiat., 112, 809818.Google Scholar
Kallmann, F. J. (1946). “The genetic theory of schizophrenia. An analysis of 691 schizophrenic twin index families.” Amer. J. Psychiat., 103, 309322.CrossRefGoogle Scholar
Luxenburger, H. (1936). “Untersuchungen an schizophrenen Zwillingen und ihren Geschwistern zur Prüfung der Realität von Manifestationsschwankungen.” Z. ges. Neurol. Psychiat., 154, 351394.CrossRefGoogle Scholar
Mitsuda, H. (1964). “Clinical genetics in psychiatry.” Jap. J. hum. Genet., 9, 6181.Google Scholar
Rüdin, E. (1916). “Studien uber Vererbung und Entstehung geistiger Störungen.” I. Zur Vererbung und Neuentstehung der Dementia Praecox. Berlin: Springer.Google Scholar
Slater, E. (1953). Psychotic and Neurotic Illnesses in Twins. Med. Res. Conn. Spec. Rept. Ser., No. 278. London: H.M.S.O. Google ScholarPubMed
Yule, G. U., and Kendall, M. G. (1958). An Introduction to the Theory of Statistics (14th edition). London: Griffin.Google Scholar
Submit a response

eLetters

No eLetters have been published for this article.