Dewey M E, Dickinson C E, Foreman T K, Troup J D
Department of Psychiatry, University of Liverpool, England.
J Spinal Disord. 1989 Dec;2(4):241-8.
Tests of ventilatory function were made and a history of previous back pain was obtained from 909 volunteers (592 men and 317 women). One year later, using postal questionnaires, they were asked about their experience of back pain in the ensuing 12 months and about smoking habits, breathlessness, coughing, and the bringing up of phlegm. From the frequency of their experience of back pain, the population was divided into "nonbacks," "mild backs," and "chronic backs." From their answers to the MRC Questionnaire on respiratory symptoms they were divided first into good, mild, and bad with regard to chest symptoms; and also into smokers, exsmokers, and nonsmokers. Ventilatory function tests were reduced in both smokers and "bad chests" and chest symptoms were significantly worse in smokers. Women with back pain were more likely to be smokers, but men with back pain were not. Chest symptoms were significantly worse in "chronic backs," whether men or women. The results suggest that previous reports of a relation between smoking and back pain arose incidentally from the associations between (a) chest and back symptoms and (b) chest symptoms and smoking.
对909名志愿者（592名男性和317名女性）进行了通气功能测试，并了解了他们既往背痛的病史。一年后，通过邮寄问卷，询问他们在随后12个月内的背痛经历以及吸烟习惯、呼吸急促、咳嗽和咳痰情况。根据他们背痛经历的频率，将人群分为“无背痛者”、“轻度背痛者”和“慢性背痛者”。根据他们对医学研究委员会（MRC）呼吸症状问卷的回答，首先将他们在胸部症状方面分为良好、轻度和不良；同时还分为吸烟者、戒烟者和非吸烟者。吸烟者和“胸部症状不良者”的通气功能测试结果均下降，且吸烟者的胸部症状明显更严重。背痛女性更有可能是吸烟者，但背痛男性并非如此。无论男性还是女性，“慢性背痛者”的胸部症状都明显更严重。结果表明，先前关于吸烟与背痛之间关系的报告，是偶然源于以下两者之间的关联：（a）胸部和背部症状，以及（b）胸部症状和吸烟。
