Pulver A E, Sawyer J W, Childs B
Am J Epidemiol. 1981 Nov;114(5):735-49. doi: 10.1093/oxfordjournals.aje.a113245.
Many epidemiologic studies have been conducted to discover factors that might bear on the origins of schizophrenia. In general, the results of these studies have been contradictory. One consistent finding, however, is an association between season of birth and the risk for schizophrenia. This paper reports a test of the hypothesis that season of birth is associated with the risk for subgroups of the schizophrenic population. The results of regression analyses of data from Monroe County, New York, are reported. All white residents who were reported to have been diagnosed schizophrenic for the first time during the period January 1, 1969, to December 31, 1971, and who were hospitalized at least one day in the five-year period following the first schizophrenic diagnosis formed the group of schizophrenic patients. The population data used for the denominators of the incidence rates consisted of all white residents living in Monroe County, New York, as of April 1, 1970. An effect of month of birth on the risk for schizophrenia was related to the sex and the age of subsets of the whole population.
已经开展了许多流行病学研究，以探寻可能与精神分裂症起源相关的因素。总体而言，这些研究的结果相互矛盾。然而，一个一致的发现是出生季节与精神分裂症风险之间存在关联。本文报告了一项关于出生季节与精神分裂症患者亚组风险相关这一假设的检验。报告了对纽约门罗县数据进行回归分析的结果。所有在1969年1月1日至1971年12月31日期间首次被诊断为精神分裂症且在首次精神分裂症诊断后的五年内至少住院一天的白人居民构成了精神分裂症患者组。用于发病率分母的人口数据包括截至1970年4月1日居住在纽约门罗县的所有白人居民。出生月份对精神分裂症风险的影响与整个人口亚组的性别和年龄有关。
