Table 2.

Association of the use of devices between patients who developed nosocomial infection and those who did not in a Brazilian NICU, 2014–2015

Variable	Infection		p-valuea
	Yes	No
Duration of mechanical ventilation (d), mean (SD)	3.6 (5.3)	3.3 (5.4)	0.60
Duration of umbilical catheter (d), mean (SD)	2.5 (2.5)	2.2 (2.7)	0.46
Duration of central catheter peripherally inserted (d), mean (SD)	5.4 (7.1)	5.2 (7.1)	0.82
Duration of orogastric tube (d), mean (SD)	16.7 (13.0)	16.7 (14.0)	0.96
Duration of parenteral nutrition (d), mean (SD)	4.8 (5.1)	3.8 (4.7)	0.09

d days, SD standard deviation

^aT-Student test