Donald A G, Pressley L C, Pitts W M
South Med J. 1976 Nov;69(11):1406-9. doi: 10.1097/00007611-197611000-00005.
Records of all patients admitted to inpatient facilities of a state department of mental health from 1948 to 1952 and from 1965 to 1969 and diagnosed schizophrenic were reviewed to determine diagnostic trends, if any. The percentage of diagnoses of the catatonic subtype showed a general decline, the hebephrenic subtype showed a marked decline, the paranoid subtype a general increase, and the nonclassical subtypes a marked increase. Analysis of the symptoms for the subtypes and comparison between subtypes did not reveal any particular symptoms to be totally characteristic of a specific subtype. Many symptoms occurred with approximately equal frequency in all subtypes. Comparison of patients' symptoms for the two periods did not reveal wide qualitative variation between periods. However, there were large quantitative variations. We conclude that the apparent change in schizophrenia is but a moderation of primary symptoms.
对1948年至1952年以及1965年至1969年期间入住某州精神卫生部门住院机构且被诊断为精神分裂症的所有患者的记录进行了审查，以确定是否存在诊断趋势。紧张型亚型的诊断百分比总体呈下降趋势，青春型亚型显著下降，偏执型亚型总体上升，非经典亚型显著增加。对各亚型的症状进行分析并在亚型之间进行比较，未发现任何特定症状完全是某一特定亚型所特有的。许多症状在所有亚型中出现的频率大致相同。对两个时期患者症状的比较未发现不同时期之间存在广泛的质性差异。然而，存在较大的量性差异。我们得出结论，精神分裂症的明显变化只是主要症状的缓解。
