Pediatric Patients with Intravascular Devices: Polymicrobial Bloodstream Infections and Risk Factors

Table 3

Associations between polymicrobial/monomicrobial BSIs and the different risk factors and outcome.

	Monomicrobial BSIs^a (%)	Polymicrobial BSIs (%)	Odds ratio	95% CI^b	𝑃 value
Age
<4.1	40 (48.2)	31 (73.8)	1.0^c
≥4.1	43 (51.8)	11 (26.2)	0.33	0.15–0.74	.007*
Diagnosis
Oncology	34 (41.0)	21 (50.0)	1.0^c
Transplantation	22 (26.5)	6 (14.3)	0.44	0.15–1.27	.13
Gastrointestinal	16 (19.3)	10 (23.8)	1.01	0.39–2.64	.98
Other	11 (13.2)	5 (11.9)	0.74	0.22–2.42	.61
Type of catheter
Single lumen	22 (26.5)	16 (38.1)	1.0^c
Double lumen	38 (45.8)	21 (50.0)	0.76	0.33–1.75	.52
Venous implanted port	18 (21.7)	3 (7.1)	0.23	0.06–0.91	.038*
PICC^d	5 (6.0)	2 (4.8)	0.55	0.09–3.20	.51
Neutropenia
No	69 (83.1)	34 (81.0)	1.0^c
Yes	14 (16.9)	8 (19.0)	1.16	0.44–3.03	.76
Parenteral nutrition
No	58 (69.9)	27 (64.3)	1.0^c
Yes	25 (30.1)	15 (35.7)	1.29	0.59–2.83	.53
Recurrence
No	28 (80.0)	20 (76.9)	1.0^c
Yes	7 (20.0)	6 (23.1)	1.20	0.35–4.11	.77
Removal
No	63 (75.9)	33 (78.6)	1.0^c
Yes	20 (24.1)	9 (21.4)	0.86	0.35–2.10	.74

^aBSIs: blood stream infections; ^b95% CI: 95% confidence interval; ^creference group; ^dPICC: peripherally inserted central catheter; *statistical significant.