Table 3.

Association of Demographic and Early Clinical Factors with Length of Mechanical Ventilation, N=216^a

		Length of Mechanical Ventilation
	N	< 72 Hours (N=148)	≥ 72 hours (N=68)	p
		median (IQR)	median (IQR)
Age in years	216	7.5 (2.6, 12.0)	5.4 (2.1, 9.3)	0.14
Body mass index	86	17.5 (15.0, 23.5)	18.1 (15.3, 20.1)	0.98
		n (%)	n (%)
Sex				0.88
Male	130	90 (69%)	40 (31%)
Female	86	58 (67%)	28 (33%)
Race *				< 0.001
Black	123	99 (80%)	24 (20%)
White	63	33 (52%)	30 (48%)
Asian	6	3 (50%)	3 (50%)
Other	2	1 (50%)	1 (50%)
Ethnicity *				0.03
Hispanic or Latino	15	7 (47%)	8 (53%)
Not Hispanic or Latino	154	115 (75%)	39 (25%)
Insurance *				0.17
Commercial	87	55 (63%)	32 (37%)
Medicaid	119	87 (73%)	32 (27%)
Other	8	4 (50%)	4 (50%)
Asthma diagnosis *				0.57
New diagnosis	30	22 (73%)	8 (27%)
Prior diagnosis	185	126 (68%)	59 (32%)
Known allergic exposure precipitating admission				0.48
Yes	18	11 (61%)	7 (39%)
No	198	137 (69%)	61 (31%)
Known cardiac arrest prior to admission				0.52
Yes	12	7 (58%)	5 (42%)
No	204	141 (69%)	63 (31%)
Barotrauma evidence prior to admission *				0.44
Yes	8	7 (88%)	1 (13%)
No	207	140 (68%)	67 (32%)
Source of admission to PICU				< 0.001
Direct admission	11	4 (36%)	7 (64%)
Transfer from outside ED/ICU	107	85 (79%)	22 (21%)
Admit through study ED	83	52 (63%)	31 (37%)
Transfer from floor	15	7 (47%)	8 (53%)
Intubated Prior to CPCCRN PICU				< 0.001
Yes	136	116 (85%)	20 (15%)
No	80	32 (40%)	48 (60%)

^aRestricting to patients who survived to hospital discharge and had non-missing value for length of mechanical ventilation.

^*Data points missing