Table 2.

VFSS Testing by Historical Characteristics

		VFSS
Characteristic	N	No (n=132)	Yes (n=56)	P
Age (days)	188	49 (19, 90)	52 (21, 88)	0.92
Female sex	188	70 (53%)	24 (43%)	0.20
>1 episode in 24 hours	188	61 (46%)	35 (63%)	0.04
Number of episodes	60	3.0 (2.0, 3.0)	2.0 (2.0, 3.0)	0.31
Color change	188			0.03
None		29 (22%)	3 (5%)
Red		14 (11%)	5 (9%)
Blue		77 (59%)	45 (80%)
Pale		12 (9%)	3 (5%)
Tone change	132			0.88
None		41 (43%)	16 (43%)
Limp		38 (40%)	13 (35%)
Shaking		2 (2%)	1 (3%)
Rigid		14 (15%)	7 (19%)
Febrile	188	17 (13%)	0 (0%)	0.005
URI symptoms	188	38 (29%)	6 (11%)	0.007
Duration of ALTE symptoms (seconds)	108	35 (10, 120)	30 (10, 75)	0.40
ALTE upright (vs. flat)	61	10 (23%)	2 (11%)	0.48
Relationship to feeds	159			0.02
No		55 (51%)	17 (33%)
During		15 (14%)	16 (31%)
After		38 (35%)	18 (35%)
Time since last feeding (minutes)	39	60 (30, 120)	83 (15, 120)	0.95
Associated emesis	188			0.97
None		108 (82%)	45 (80%)
Yes, before		16 (12%)	7 (13%)
Yes, after		8 (6%)	4 (7%)
Mucus or foaming at mouth	188	22 (17%)	6 (11%)	0.43
Interventions in the field	188	74 (56%)	30 (54%)	0.82
Appeared well in ED	188	107 (81%)	54 (96%)	0.006
Admitted to ICU or NICU	188	40 (30%)	13 (23%)	0.32