Table 3. Transferring institution characteristics, including geographic location, and bed size.

Transfer characteristics	Percent of total patients in category (n=65)	Percent with esophageal perforation	P value
Transferring hospital location			0.39
<50 miles	23.1% [15]	80.0% [12]
50–100 miles	18.5% [12]	66.7% [8]
101–300 miles	32.3% [21]	57.1% [12]
>300 miles	26.2% [17]	52.9% [9]
Transferring hospital size			0.13
Small (<100 beds)	32.3% [21]	47.6% [10]
Medium (100–499 beds)	63.1% [41]	68.3% [28]
Large (>499 beds)	4.6% [3]	100.0% [3]
OSH cardiothoracic surgeon			0.78
Yes	47.7% [31]	61.3% [19]
No	52.3% [34]	64.7% [22]
Transfer transportation route			0.02
Ground	35.4% [23]	69.6% [16]
Flight	50.8% [33]	69.7% [23]
Unknown	13.8% [9]	22.2% [2]
Transfer time of day			0.51
6 am–6 pm	24.6% [16]	56.3% [9]
6 pm–6 am	75.4% [49]	65.3% [32]
Day of transfer			0.44
Monday–Friday	69.2% [45]	60.0% [27]
Saturday–Sunday	30.8% [20]	70.0% [14]
Transfer time			0.04
<4 hours	47.7% [31]	77.4% [24]
4–12 hours	23.1% [15]	60.0% [9]
>12 hours	1.5% [1]	0.0% [0]
Unknown	27.7% [18]	44.4% [8]
Transfer patient status			0.09
ICU	81.5% [53]	66.0% [35]
Floor/telemetry	13.8% [9]	33.3% [3]
Emergency department	4.6% [3]	100.0% [3]
Intubated on arrival			0.24
No	87.7% [57]	59.6% [34]
Yes	12.3% [8]	87.5% [7]
Vasopressors on arrival			0.40
No	90.8% [59]	61.0% [36]
Yes	9.2% [6]	83.3% [5]
Leukocytosis (>11.1) on arrival			0.15
No	30.8% [20]	50.0% [10]
Yes	69.2% [45]	68.9% [31]
Elevated Lactate (>1.6) on arrival			<0.01
No	30.8% [20]	40.0% [8]
Yes	36.9% [24]	87.5% [21]
Unknown	32.3% [21]	57.1% [12]

Data are presented as % [n]. Details of patient transfer such as mode of transport, timing, distance. ICU, intensive care unit; OSH, outside hospital.