激光作业人员血压和血脂变化的研究

Wang Xieyao,et al. Study on the levels of bloodpressure and serum lipids from persons occupationallyexposed to laser radiation

本文对激光作业人员１２２人（男７８、女４４）和对照组１２５人（男８４、女４１）进行调查。采用协方差分析和多元线性逐步回归分析控制其它混杂因素影响后，研究激光暴露与血压、血脂之间的关系。结果表明：激光组ＴＣ、ＴＣ／ＨＤＬ－Ｃ比值明显高于对照组（Ｐ＜０．０１），多元线性逐步回归分析表明接触激光是引起ＳＢＰ、ＴＣ升高，ＨＤＬ－Ｃ下降的最主要因素，说明长期接触激光对血压、血脂可产生一定的影响，是增加冠心病危险性的又一潜在因素。

122 persons(78 males and 44 females)exposedto laser radiation were investigate, other 125 persons(84 males and 41 females)without laser exposurewere observed as control.after the relevant confoun-ding factors had been controlled by using analyses ofcovariance and multiple linear regression the correla-tion between laser radiation and the blood pressureand serum lipids was studied. The results showedthat in the laser expoure group the levels of serumlipids ( TC,TC/HDL-C)were significantly higherthan those of the control group(P<0.01), at α=0.25 level, the multiple regression showed that laserexposure was the first factor increasing SBP, TC and1owering HDL-C. It seemed that prolonged laserexposure could influence the level of blood pressureand serum lipids , and it appeared to be another latentfactor for increasing the risk of CHD.