TABLE 5.

Comparison of catheter data of all neonates admitted to the SCH NICU in 1995

Catheter type	% of neonates receiving a catheter		P value using chi-square test	Mean duration of stay (days)		P value using Mann-Whitney test
	Subgroupa	Control groupb		Subgroupa	Control groupb
Arterial	50.0	37.4	0.108	10.7	5.6	0.273
Arterial umbilical	52.4	21.7	<0.001	5.1	8.9	0.241
Venous umbilical	73.8	29.3	<0.001	6.4	5.4	0.162
Broviac	4.8	0.7	0.010	4.5	42.7	0.200
Intravenous	38.1	10.9	<0.001	10.9	9.6	0.316

^an = 42. 

^bn = 460.