为了了解棉纺噪声对女工月经及妊娠结局的影响,我们于1987年6月～1988年6月对广州市5间棉纺厂进行一次回顾性的调查。一、对象和方法 1.对象。在接触噪声声强85～90分贝的棉纺女工208人中,随机抽样调查了46例(22.12％)为观察组;不直接接触噪声的女工107例为对照组。两组女工的婚姻、年龄、工龄等情况基本相同。其中工龄最短2年,最长22年。平均15.61年。(注:噪声声强在90分贝以下为符合国家卫生标准。) In order to understand the effect of cotton spun noise on the menstrual cycle and pregnancy outcomes of women workers, we conducted a retrospective survey of 5 cotton spinning mills in Guangzhou from June 1987 to June 1988. First, the object and method 1. Object. Of the 208 cotton workers exposed to 85-90 decibels of sound intensity, 46 (22.12%) were randomized to the observation group; 107 were female workers without direct exposure to noise as the control group. Marital status, age and length of service of the two groups of female workers are basically the same. Which the shortest two years of service, up to 22 years. Average 15.61 years. (Note: Noise intensity below 90 dB is in line with national health standards.)