Efficacy and safety of preventing catheter-associated urinary tract infection by inhibiting catheter bacterial biofilm formation: a multicenter randomized controlled trial

Table 3 Number of bacteria on the catheter

Time points	Catheter segments	Control group		Treatment group
Time points	Catheter segments	Interior surface	Exterior surface	Interior surface	Exterior surface
Day 1	Intravesical	-	-	-	-
	Urethral	+	+	-	-
	Extracorporeal	+ +	-	-	-
Day 2	Intravesical	+	+	-	-
	Urethral	+ +	++	+	-
	Extracorporeal	+ + +	+	+	+
Day 5	Intravesical	+ + +	+	-	+
	Urethral	+ +	+ +	+	+
	Extracorporeal	+ + +	+	+	+
Day 7	Intravesical	+ + +	++	+	+
	Urethral	+ + +	++	+	+
	Extracorporeal	+ + +	-	+	+
Day 10	Intravesical	+ + +	+ + +	+	-
	Urethral	+ + +	+++	-	-
	Extracorporeal	+ + +	+	-	-

-: No bacteria (negative); + and ++: colony counting < 10⁵ CFU/ml; +++: colony counting ≥ 10⁵ CFU/ml

ISSN: 2047-2994