冬天出生的人,以后患精神分裂症的可能性要大一些,这一结论已相当肯定,已经大量的人口调查和对南、北方及热带地区国家的调查所证实。有人认为,冬天病毒感染流行可能是某些精神分裂症的病因。在冬天和城市出生,并有遗传性易感的人,在胎儿时或生后一个月内常可由于感染引起中枢神经系统的损伤,因此以后较易出现心理损害,包括精神分裂症。城市冬季出生的高危人群中,精神分裂症的最高发病率是21%,基础高危率是9%。1974年Videbech等证实,冬天出生的人中,精神分裂症增多与普通人群中冬季死胎数增多相平行,他们认为这是由于冬季妊娠和新生儿并发症增多 People born in winter are more likely to develop schizophrenia later in life. This conclusion is quite certain. It has been confirmed by a large number of censuses and surveys conducted by countries in the south, north and tropics. Some people think that the prevalence of winter virus infection may be the cause of some schizophrenia. People who are born in winter and urban areas and have hereditary predisposition may often suffer from central nervous system damage due to infection during or after birth, resulting in later psychological damage, including schizophrenia. The highest incidence of schizophrenia in urban high-risk populations born in winter was 21% and the basal high-risk rate was 9%. In 1974, Videbech et al. Confirmed that among people born in winter, the increase in schizophrenia parallels the increase in the number of stillbirths in winter in the general population, which they believe is due to increased winter pregnancy and neonatal complications