机构地区:[1]厦门大学公共卫生学院预防医学系分子疫苗学和分子诊断学国家重点实验室,361102 [2]厦门市第二医院消化内科
出 处:《中华预防医学杂志》2016年第11期982-989,共8页Chinese Journal of Preventive Medicine
基 金:国家自然科学基金(81373086);厦门市科技计划(3502220163006);集美区科技计划(20142C01)
摘 要:目的分析厦门市孕妇双对氯苯基三氯乙烷(dichlorodiphenyltrichloroethane,DDTs)内暴露水平及其影响因素。方法2014年4月-2015年7月在厦门市某医院妇产科招募1064名孕妇作为调查对象,采用调查问卷收集孕妇人口学信息、孕期生活方式以及妊娠信息,并收集孕妇外周静脉血和分娩时的脐带血样本,最终完成问卷且有配对的外周血和脐带血的样本共600名,以此为抽样人群,采用系统抽样方法从中抽取150名孕妇作为调查对象。采用气相色谱联用电子捕获器检测DDTs 6种同系物:对,对.二氯二苯基三氯乙烷(p,p’-DDT)、邻,对-二氯二苯基三氯乙烷(o,p'-DDT)、对,对-二氯二苯基二氯乙烷(p,p'-DDD)、邻,对-二氯二苯基二氯乙烷(o,p'-DDD)、对,对.二氯二苯基二氯乙烯(p,p'-DDE)、邻,对-二氯二苯基二氯乙烯(p,p'-DDE)并计算总和,以总DDTs的P50为界将孕妇分为低浓度组(≤P50)和高浓度组(〉P50)。同时结合调查问卷信息,采用多因素logistic回归模型分析孕妇DDTs内暴露水平的影响因素。结果150名孕妇中外周血中6种DDTs同系物p,p’DDT、o,p'-DDT、p,p'-DDD、o,p'-DDD、p,p'-DDE和o,p'-DDE的检出率分别为83.3%(125名)、29.3%(44名)、58.0%(87名)、24.0%(36名)、82.0%(123名)和34.7%(52名),6种DDTs同系物浓度中位数分别为1.56、0.03、0.07、0.03、0.93和0.03μg/ml;脐带血中6种DDTs同系物p,p'-DDT、o,p’DDT、p,p’DDD、o,p'-DDD、p,p'-DDE和o,p'-DDE的检出率分别为69.3%(104名)、10.7%(16名)、29.3%(44名)、20.7%(31名)、81.3%(122名)和45.3%(68名),6种DDTs同系物浓度中位数分别为0.41、0.03、0.03、0.03、0.42和0.03μg/ml。DDTs高、低浓度组各有75名调查对象,DDTs浓度范围分别为0-3.69、3.74—82.09μg/ml。单Objective To investigate the level of and factors influencing internal exposure to dichlorodiphenyltrichloroethane (DDT) in pregnant women. Methods In all, t 064 pregnant women were recruited in a hospital of Xiamen. Participants were asked to complete a questionnaire to obtain data on sociodemographic characteristics and lifestyle. Peripheral venous blood and cord blood samples were collected. Of the 1 064 pregnant women, 600 were enrolled in this study after completing the questionnaire and providing peripheral venous blood and cord blood. Among those women, 150 were selected randomly using a systematic sampling method. A gas chromatography coupled electron capture detector was used to determine the concentration of six DDT homologues: p,p'-dichlorodiphenyltrichloroethane (p,p'-DDT), o,p'-dichlorodiphenyhrichloroethane (o,p'-DDT), p,p'-dichlorodiphenyldichloroethane (p,p'-DDD), o,p'-dichlorodiphenyldichloroethane (o,p'-DDD), p,p'-dichlorodiphenylethylene (p,p'-DDE), and o,p'-dichlorodiphenylethylene (o,p'-DDE) . Pregnant women were divided into two groups according to DDT concentration: a low concentration group (detection value≤P50) and a high concentration group (detection value〉P50), multivariate logistic regression was used to analyze the association between the DDT levels and potential influencing factors which investigated in the questionnaire. Results The detection rates of p,p'-DDT, o,p'-DDT, p,p'-DDD, o,p'-DDD, p,p'-DDE and o,p'-DDE in the peripheral venous blood samples from the 150 pregnant women were 83.3% (125), 29.3% (44), 58.0% (87), 24.0% (36), 82.0% (123), and 34.7% (52), respectively. The median concentrations were 1.56, 0.03, 0.07, 0.03, 0.93 and 0.03 μg/ml, respectively. The detection rates of p,p'-DDT, o,p'-DDT, p,p'-DDD, o,p'-DDD, p,p'-DDE and o,p'-DDE in the cord blood samples were 69.3% (104), 10.7% (16), 29.3% (44), 20.7% (31), 81.3% (122) and 45.3% �
分 类 号:R114[医药卫生—卫生毒理学]
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