Use of chlorhexidine-impregnated dressings and early catheter exchange to reduce the onset of central line-associated bloodstream infections: A case-control study in a cardiac intensive care unit

Table 2.

Comparisons of the indwelling period between cases andcontrols

Indwelling periodMann-Whitney U test

Min 25% Median 75% Max P value
Cases (n=11) 7 8 9 10 13 0.004
Controls (n=22) 2 5 7 7 17