Decreased duration of perinatal sunshine is associated with higher scores on reality distortion symptoms

Welham, J., Chant, D., El-Saadi, O., Saha, S. and McGrath, J. (2002). Decreased duration of perinatal sunshine is associated with higher scores on reality distortion symptoms. In: Schizophrenia Research: Abstract of the XIth Biennial Winter Workshop on Schizophrenia. XIth Biennial Winter Workshop on Schizophrenia, Davos, Switzerland, (229-229). 24 February - 1 March, 2002. doi:10.1016/S0920-9964(01)00381-4


Author Welham, J.
Chant, D.
El-Saadi, O.
Saha, S.
McGrath, J.
Title of paper Decreased duration of perinatal sunshine is associated with higher scores on reality distortion symptoms
Conference name XIth Biennial Winter Workshop on Schizophrenia
Conference location Davos, Switzerland
Conference dates 24 February - 1 March, 2002
Proceedings title Schizophrenia Research: Abstract of the XIth Biennial Winter Workshop on Schizophrenia   Check publisher's open access policy
Journal name Schizophrenia Research   Check publisher's open access policy
Place of Publication Amsterdam
Publisher Elsevier
Publication Year 2002
Sub-type Poster
DOI 10.1016/S0920-9964(01)00381-4
ISSN 0920-9964
Volume 53
Issue 3, Supplement 1
Start page 229
End page 229
Total pages 1
Language eng
Formatted Abstract/Summary
Background:
Our group has previously found an association
between decreased perinatal sunshine duration and increased
schizophrenia birthrates in males. In addition, we found that those
born duringperiods of reduced sunshine had an earlier age of first
registration. Given the clinical heterogeneity of schizophrenia, we
examined whether there was a relationship between perinatal
sunshine duration and the three syndromes of schizophrenia as
defined by Liddle.

Methods:
We selected cases born in South East Queensland
from a catchment area prevalence study of psychosis. Various
symptoms from SCAN and OPCRIT items were summed in order
to allocate scores for each of the three syndromes: Ža. Reality
DistortionŽhallucinations, delusions.; Žb. Negative Žblunted affect,
poverty of speech.; andŽc.DisorganizationŽpositive formal
thought disorder, inappropriate affect, bizarre behaviour.. We did
planned subgroup analyses on Ža. those patients with schizophrenia
only and Žb. males and females separately.

Results:

Of these 126 casesŽMs78; Fs48., 103 were
diagnosed with schizophreniaŽ82%., 20 affective psychosisŽ16%.
and 3 other functional psychosisŽ2%.. Beingborn in periods of
lower sunshine duration was associated with higher scores for the
Reality Distortion syndromeŽrsy0.23, ps0.02.. There were
no significant associations between perinatal sunshine and scores
for the Negative or Disorganized syndromes. These results remained
unchanged when schizophrenia and each sex were analysed
separately.

Conclusions:

Different levels of perinatal sunshine were associated
with different profiles of psychotic symptoms. If replicated
this would have important implications regarding environmental
risk factors in the heterogeneity of schizophrenia and common
underlyingdimensions of functional psychosis.
The Stanley Foundation supported this project.
Subjects 110319 Psychiatry (incl. Psychotherapy)
111714 Mental Health
Keyword Psychiatry
Q-Index Code EX
Q-Index Status Provisional Code
Institutional Status Unknown

 
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Created: Mon, 13 Aug 2007, 22:49:27 EST