Magnitude of Biofilm Formation and Antimicrobial Resistance Pattern of Bacteria Isolated from Urinary Catheterized Inpatients of Jimma University Medical Center, Southwest Ethiopia

Table 3

Biofilm formation patterns of bacterial isolates among urinary catheterized inpatients of JUMC, Southwest Ethiopia, from February to August 2016.

Bacterial isolates	Biofilm formation patterns
	BF			NBF (%)	Chi-square test
	SBF (%)	MBF (%)	WBF (%)		χ^2	value
E. coli ()	3 (16.7)	2 (11.1)	9 (50)	4 (22.2)	25.83	0.213
Klebsiella spp. ()	5 (41.7)	1 (8.3)	3 (25)	3 (25)
P. aeruginosa ()	2 (66.7)	1 (33.3)	—	—
Proteus spp. ()	2 (50)	—	2 (50)	—
Citrobacter spp. ()	—	1 (33.3)	1 (33.3)	1 (33.3)
Enterobacter spp. ()	1 (50)	1 (50)	—	—
CONS ()	2 (28.6)	3 (42.9)	—	2 (28.6)
S. aureus ()	4 (80)	—	—	1 (20)
Grand total ()	19 (35.2)	9 (16.7)	15 (27.8)	11 (20.3)

BF: biofilm formers; NBF: nonbiofilm formers; SBF: strong biofilm formers; MBF: moderate biofilm formers; WBF: weak biofilm formers; N: number; CONS: coagulase-negative staphylococci.