Syme G J, Illingworth D J
J Clin Psychol. 1978 Jul;34(3):633-5. doi: 10.1002/1097-4679(197807)34:3<633::aid-jclp2270340310>3.0.co;2-9.
Birth patterns of non-aboriginal, first admission, Western Australian psychiatric patients born between 1920 and 1950 were compared statistically with those of the general population. Three I. C. D. categories were examined: schizophrenia, anxiety neurosis, and depressive neurosis. For both categories of neurosis no deviations from normal birth patterns were observed. For males, marked excesses in schizophrenic births were observed in June, and for females a similar excess occurred in September. Possible explanations for this sex difference are examined.
对1920年至1950年间出生、首次入院的西澳大利亚非原住民精神病患者的出生模式，与普通人群的出生模式进行了统计学比较。研究了国际疾病分类（I.C.D.）的三个类别：精神分裂症、焦虑性神经症和抑郁性神经症。对于这两类神经症，未观察到与正常出生模式的偏差。对于男性，6月份精神分裂症患者的出生数量显著过多，而对于女性，9月份出现了类似的过多情况。文中探讨了这种性别差异的可能解释。
