Table 3. Risk factors for potential intravenous drug incompatibility.

Demographic and clinical characteristics	PI
	M	SD	p value
Gender
Male	1.4	0.7	0.583b
Female	1.5	0.7
Age
0 to 2 years	1.4	0.6	0.101b
2.1 to 15 years	1.5	0.8
Hospital stay
1 to 8 days	1.5	0.8	0.401b
9 days or over	1.4	0.7
Drugs
Up to 2	1.1	0.2	0.000b*
3 or more	2.1	0.7
Cause of hospitalization
Respiratory diseases	0.9	0.6	0.623c
AGECa	1.1	0.7
Cellulitis	1.2	0.4
Infections	1.4	0.5
Other	0.9	0.5

*p<0.05.

^b Student´s t test; ^cAnalysis of variance.

PI: potential incompatibility; M: mean; SD: standard deviation; AGEC^a: acute gastroenterocolitis.