KNCV Tuberculosis Foundation, The Hague, The Netherlands.
Int J Tuberc Lung Dis. 2011 Jan;15(1):38-43.
Two thirds of tuberculosis (TB) patients in the Netherlands are foreign-born.
To determine if travelling to the country of origin is a risk factor for TB among two different immigrant groups that have lived in the Netherlands for at least 2 years.
In this unmatched case-control study, the frequency and duration of travel to the country of origin in the preceding 12 months were compared between adult Moroccan and Turkish TB patients and community controls.
Moroccan patients had travelled more often (26/32 = 81%) in the preceding year than Moroccan controls (472/816 = 58%). The travel-associated odds ratio (OR) for TB among Moroccans was 3.2 (95%CI 1.3-7.7), and increased to 17.2 (95%CI 3.7-79) when the cumulative duration of travel exceeded 3 months. The corresponding population fraction of Moroccan TB cases attributable to recent travel was 56% (95%CI 19-71). Among Turkish immigrants TB was not associated with travel (OR 0.9, 95%CI 0.3-2.4).
Travel to the country of origin was a risk factor for TB among Moroccans, but not among Turkish people living in the Netherlands. The difference in travel-associated OR between these two immigrant groups is probably related to differences in TB incidence in these countries.
荷兰有三分之二的肺结核（TB）患者为移民。
确定对于在荷兰居住至少 2 年的两个不同移民群体而言，返回原籍国是否为结核病发病的一个风险因素。
在这项未匹配的病例对照研究中，比较了在过去 12 个月中，成年摩洛哥和土耳其结核病患者与社区对照者前往原籍国的频率和时间。
摩洛哥患者在过去 1 年中旅行的次数多于摩洛哥对照者（26/32 = 81%）。摩洛哥人旅行相关的结核病比值比（OR）为 3.2（95%CI 1.3-7.7），当旅行累计时间超过 3 个月时，比值比增加到 17.2（95%CI 3.7-79）。归因于近期旅行的摩洛哥结核病病例的人群比例为 56%（95%CI 19-71）。在土耳其移民中，旅行与结核病之间没有关联（OR 0.9，95%CI 0.3-2.4）。
对于居住在荷兰的摩洛哥人，返回原籍国是结核病的一个风险因素，但对于土耳其人来说并非如此。这两个移民群体之间旅行相关的 OR 差异可能与这些国家的结核病发病率差异有关。
