CVC, central venous catheter; CLABSI, central line-associated bloodstream infection; CoNS, coagulase-negative staphylococci. The data in the table are presented as n (%), which refer to the number of isolated organism (n) and the percentage of different isolated organisms (%), respectively. The total number of isolated organisms was 379 (18.7%). Gram-negative bacteria with 44.4% were predominate among the total colonization bacteria on the CVC surfaces, followed by Gram-positive bacteria (40.1%) and fungi (15.6%). A total of 107 (5.3%) isolated organisms from CVCs were associated with a diagnosis of CLABSI. The most common organisms in causing CLABSI were Acinetobacter (23.4%), S. aureus (13.1%), and Candida albicans (12.1%).