噪声不仅能引起听力损伤,并能对机体神经系统、心血管系统、消化系统等产生影响已日益为人们所关注,国内外已见研究与报道。本文为了解接触不同噪声强度作业工人脑血流图的变化,对149名噪声作业工人进行脑血流图检查,以评价噪声对其脑血流的影响。对象与方法1．调查对象(1)观察组:选择149名从事噪声作业工人,男125名,女24名。年龄21~59岁,平均34.4岁;工龄1~24年,平均9.8年。按接触噪声强度分100~、90~、80~dB(A)三组。(2)对照组:选90名不接触噪声与毒物的作业工人,男74名,女16名。年龄19~59岁,平均年龄32.1岁;工龄1~22年,平均9.6年。两组年龄、性别、工龄经统计学处理无显著差 Noise can not only cause hearing loss, but also affect the nervous system, cardiovascular system, digestive system and other effects of the body has been increasingly concerned about the domestic and foreign studies and reports have been seen. In order to understand the changes of cerebral blood flow patterns in workers exposed to different noise levels, 149 noise workers were examined with cerebral blood flow to evaluate the effect of noise on their cerebral blood flow. Objects and methods 1. Survey (1) Observation group: 149 workers engaged in noise work, 125 men and 24 women. Aged 21 to 59 years old, average 34.4 years; length of service 1 to 24 years, an average of 9.8 years. According to the contact noise intensity points 100 ~, 90 ~, 80 ~ dB (A) three groups. (2) Control group: Choose 90 non-working workers exposed to noise and poison, 74 males and 16 females. Aged 19 to 59 years old, with an average age of 32.1 years; length of service 1 to 22 years, an average of 9.6 years. Two groups of age, gender, length of service by statistical analysis was no significant difference