Bettschart W
Soz Praventivmed. 1977 Jan-Apr;22(1-2):75-81. doi: 10.1007/BF02077408.
Psychiatric epidemiology is founded on clinical experience and scientific research; these two spheres are not contradictory but complementary. Different aspects need to be examined thoroughly; for instance, diagnosis, considered as the result of a rather complicated process has hardly ever been studied. This should not lead us to give up or to act in a pseudo-scientific way as if we could control all the problems. The existing results show us that diagnosis is getting significant only with complementary and specific items. From the methodological point of view, video-tape and discussions about case histories allow us to study the diagnosis process. Field researches, comparative studies about systematic case data of different services, clinical and longitudinal investigations contribute ot epidemiological knowledge and facilitate interdisciplinary and international cooperation. Any linear and causal explanations on epidemiological phenomena appear unreliable.
精神疾病流行病学建立在临床经验和科学研究的基础之上；这两个领域并非相互矛盾，而是相辅相成的。需要对不同方面进行全面审视；例如，诊断作为一个相当复杂过程的结果，几乎从未得到过研究。这不应导致我们放弃或采取伪科学的方式行事，就好像我们能够控制所有问题一样。现有结果表明，只有通过补充性和特异性项目，诊断才变得有意义。从方法论的角度来看，录像带以及关于病例史的讨论使我们能够研究诊断过程。实地研究、对不同服务机构的系统病例数据的比较研究、临床和纵向调查有助于丰富流行病学知识，并促进跨学科和国际合作。对流行病学现象的任何线性和因果解释似乎都是不可靠的。
