南通口岸国际航行船舶医学媒介生物传入风险的影响因素分析

Analysis on risk factors of carrying medical vectors on entry international ships at Nantong port

目的探索国际航行船舶外来医学媒介生物传入风险的影响因素。方法采用非匹配的病例对照研究方法,对2010-2011两年内南通口岸的1187艘国际航行船舶截获的医学媒介生物情况进行调查,以医学媒介生物超标的船舶作为阳性组,未超标的为阴性对照组,进行logistic回归分析筛选出与医学媒介生物检出超标相关的风险因素。结果夏季到达的风险高于冬季(OR=11.413);曾检出医学媒介生物超标的船舶风险很高(OR=5.358);发航港来自欧美地区的船舶风险较低(OR=0.144,P<0.05)。多数船员是泰国和伊朗、孟加拉的风险较高,分别是中国船员的4.076和18.122倍。结论季节、曾检出医学媒介生物超标、发航港情况、多数船员国籍、载货种类有明显的风险指示价值,船龄、总吨位、免控证书等指标有一定的参考价值。

Objective To investigate the major risk factors of medical vectors on entry international navigation ships at Nantong port.Methods Case-control study was used in the data collection from Jan.2010 to Dec.2011.Univariate and multivariate logistic regression were performed to indentify risk factors.Results Multivariate analysis indicated arrival time（OR_（sum vs.win） = 11.413）,positive record（OR = 5.538）,port of origin（OR_（west） = 0.144）,nationality of most crew（OR_（thai）= 4.076, OR_（iran bad）= 18.122） were independent influence factors of carrying medical vectors.Conclusion Through influence factor analysis,the arrival time,positive record,port of origin,nationality of most crew,cargo types have obvious risk indication value,and ship s age,tonnage,sanitation control exemption certificate have some indication value.