目的 接触苯及苯系化合物作业人员血常规检查结果的分析。方法 收集2022年1月—2022年12月726名接触苯系物作业人员健康监护资料,均行血常规检测,并对其进行分析。结果 男性苯及苯系物接触作业人员的红细胞计数（RBC）（t=16.253）、血红蛋白（Hb）（t=25.345）、淋巴细胞绝对值（t=4.420）高于女性,血小板计数（PLT）（t=-5.523）低于女性,差异有统计学意义（P<0.001）;30~39岁和≥50岁作业人员、40~49岁和≥50岁作业人员的Hb比较差异有统计学意义（F=6.581,P=0.001）,<30岁和≥50岁作业人员、30~39岁和≥50岁作业人员、40~49岁和≥50岁作业人员的PLT比较差异有统计学意义（F=7.082,P=0.001）。结论 苯及苯系化合物的接触对劳动者血常规的结果有一定的影响,其中女性、高龄更为明显,应加强相应的职业健康防护措施,应改善作业环境,完善防护设备,防止职业疾病的发生。

Objective Analysis of blood routine test results for workers exposed to benzene and its derivatives．Methods Collect health monitoring data from 726 workers exposed to benzene derivatives from January 2022 to December 2022,all of whom underwent blood routine tests and were analyzed．Results The absolute values of RBC（t=16.253）,Hb（t=25.345）,and lymphocytes（t=4.420）in male workers exposed to benzene and its derivatives were higher than those in females,while PLT（t=-5.523）was lower than that in females,with statistical significance（P<0.001）;There was a significant difference in Hb between workers aged 30-39 and≥50,and between workers aged 40-49 and≥50（F=6.581,P=0.006,P<0.001）．There was a significant difference in PLT between workers aged 30-39 and≥50,between workers aged 30-39 and≥50,and between workers aged 40-49 and≥50（F=7.082,P=0.005,P=0.001,P<0.001）．Conclusions The exposure to benzene and its derivatives has a certain impact on the blood routine results of workers,with females and elderly being more prominent．Corresponding occupational health protection measures should be strengthened,the working environment should be improved,protective equipment should be perfected,and occupational diseases should be prevented．

目的 了解广州市某净水公司职工脂肪肝检出情况,并分析影响因素。方法 选取2023年广州市某净水公司参加职业健康检查的职工为研究对象,收集研究对象的一般情况、个人史、职业史、身体质量指数（BMI）、血压、血生化指标、肝脏彩超等资料。对该人群脂肪肝的患病情况进行描述性分析,对脂肪肝的影响因素进行单因素及多因素Logistic回归分析。结果 共收集研究对象1 217人,检出脂肪肝543例,检出率为44.62%。单因素分析结果表明,脂肪肝的发生与性别、年龄、体质量指数、高血压相关（P<0.05）。接触硫化氢、氨的职工脂肪肝检出率高于非接触者（P<0.05）,且职工工龄越长,脂肪肝检出率越高（P<0.05）。患脂肪肝职工的肝功能、脂代谢、血糖及尿酸水平高于非脂肪肝者（P<0.05）。多因素Logistic回归分析提示,年龄、体质量指数、肝功能异常、脂代谢异常、高血糖、高尿酸是脂肪肝的影响因素（P<0.05）。结论 广州市某净水公司职工的脂肪肝检出率较高,脂肪肝的发生主要与年龄、体质量指数、肝功能异常、脂代谢异常、高血糖、高尿酸等因素相关。

Objective To investigate the prevalence of fatty liver disease and influencing factors among employees of a water purification company in Guangzhou．Methods Employees of a water purification company in Guangzhou who participated in occupational health examinations in 2023 were selected as the study subjects．The subjects' general conditions,personal history,occupational history,BMI,blood pressure,blood biochemical indicators,and liver ultrasound images were collected．Descriptive analysis was used to analyze the prevalence of fatty liver disease in this population．The influencing factors of fatty liver were analyzed by single factor and multiple factor Logistic regression．Results A total of 1 217 subjects were included in this study,and 543 were diagnosed as fatty liver disease,with a detection rate of 44.62%．The results of single factor analysis showed that the occurrence of fatty liver was closely related to gender,age,BMI and hypertension（P<0.05）．The analysis of occupational hazard factors showed that,the detection rate of fatty liver disease was higher in people exposed to hydrogen sulfide and ammonia compared to non-exposed individuals（P<0.05）．The longer the working years,the higher the detection rate of fatty liver（P<0.05）．The levels of liver function,lipid metabolism,blood glucose and uric acid in workers with fatty liver were higher than those in workers without fatty liver（P<0.05）．Multivariate Logistic regression analysis showed that age,BMI,abnormal liver function,abnormal lipid metabolism,high blood glucose levels and hyperuricemia were independent influencing factors for fatty liver disease（P<0.05）．Conclusions The detection rate of fatty liver disease among employees of a water purification company in Guangzhou is high,and the occurrence of fatty liver disease is mainly related to factors such as age,BMI,abnormal liver function,abnormal lipid metabolism,high sugar levels and hyperuricemia．