Bland R C, Orn H
Br J Psychiatry. 1980 Jul;137:63-8. doi: 10.1192/bjp.137.1.63.
The files of a narrowly defined group fo schizophrenic patients, admitted to hospital for the first time in their lives in 1963, and who were representative of cases from a large un-selected population, were examined for Schneider's first-rank symptoms. Forty-three such patients were followed-up in 1977. Using stepwise regression, it was found that Schneider's first-rank symptoms relate to outcome such that they can "explain" from 17 per cent of 26 per cent of the variance on four outcome measures. The presence of some first-rank symptoms correlated positively with good outcome, others negatively, whilst some correlated differently with different outcome measures. Thus, assessment of only the presence, absence or number of first-rank symptoms is unlikely to relate to outcome.
对一组狭义的精神分裂症患者的档案进行了检查，以确定是否存在施奈德一级症状。这些患者于1963年首次入院，代表了来自大量未经过筛选人群的病例。1977年对43名此类患者进行了随访。通过逐步回归分析发现，施奈德一级症状与预后相关，它们能够“解释”四种预后指标中17%至26%的方差。一些一级症状的存在与良好预后呈正相关，另一些呈负相关，而有些症状与不同的预后指标的相关性则有所不同。因此，仅评估一级症状的存在、缺失或数量不太可能与预后相关。
