Bull World Health Organ. 1975;52(3):251-60.
The current state of research into the epidemiology of chronic non-specific respiratory diseases (CNSRD) is reviewed. Recommendations are made on the definitions of CNSRD for use in epidemiological studies, and various aspects of the etiology and natural history of CNSRD are identified as requiring further investigation. The need for standardization of investigative methods is emphasized. Since smoking is such an important factor in the etiology of CNSRD, it is recommended that efforts be made to discourage children from taking up the habit.
本文综述了慢性非特异性呼吸道疾病（CNSRD）流行病学的研究现状。针对流行病学研究中CNSRD的定义提出了建议，并指出CNSRD病因和自然史的各个方面都需要进一步研究。强调了调查方法标准化的必要性。鉴于吸烟是CNSRD病因中的一个重要因素，建议努力劝阻儿童养成吸烟的习惯。
