Kendell R E, Kemp I W
Edinburgh University Department of Psychiatry.
Br J Psychiatry. 1987 Oct;151:499-505. doi: 10.1192/bjp.151.4.499.
Data from two sources--the Edinburgh Psychiatric Case Register and the psychiatric inpatient records of the Scottish Health Service--were used to compare large populations of first-admission schizophrenics born in winter (January to March) and in summer (June to October). Parallel comparisons were carried out for affective psychoses. Comparison of the months of birth of the Scottish patients with those of the general population indicated that there was a 9% excess of schizophrenic births and a 3% excess of affective births in the first 3 months of the year. In the Edinburgh material, winter-born schizophrenics were more likely than the summer-born to receive a diagnosis of paranoid or schizoaffective schizophrenia and less likely to receive diagnoses other than schizophrenia on readmission, but neither of these differences emerged in the much larger Scottish material. There were no differences between winter- and summer-born schizophrenics in age of onset, sex ratio, or prognosis in either data set, nor were any significant differences found between winter- and summer-born affectives. We have therefore failed to demonstrate any convincing differences between winter- and summer-born schizophrenics.
来自两个来源的数据——爱丁堡精神病病例登记册和苏格兰卫生服务的精神病住院记录——被用于比较大量冬季（1月至3月）和夏季（6月至10月）出生的首次入院精神分裂症患者群体。对情感性精神病进行了平行比较。将苏格兰患者的出生月份与普通人群的出生月份进行比较表明，在一年的前三个月中，精神分裂症患者出生人数多出9%，情感性精神病患者出生人数多出3%。在爱丁堡的资料中，冬季出生的精神分裂症患者比夏季出生的患者更有可能被诊断为偏执型或精神分裂情感性精神分裂症，再次入院时被诊断为精神分裂症以外疾病的可能性更小，但在规模大得多的苏格兰资料中，这些差异均未出现。在两个数据集中，冬季和夏季出生的精神分裂症患者在发病年龄、性别比例或预后方面均无差异，冬季和夏季出生的情感性精神病患者之间也未发现任何显著差异。因此，我们未能证明冬季和夏季出生的精神分裂症患者之间存在任何令人信服的差异。
