In another observational study of non-tunneled central venous catheters, a trend towards higher colonization in lower body (femoral vein) versus upper body locations was noted (3).

• 在另一个非隧腔（？？）中心静脉导管的观察性研究中，低位位置（股静脉）与高位位置相比，可观察到感染趋势增加[3]。