Table 2. Diagnostic imaging obtained at OSH and at our institution after transfer.

Diagnostic imaging	Percent of total patients in category (n=65)	Percent with esophageal perforation	P value
Esophagram at OSH			0.46
Not obtained	78.5% [51]	60.8% [31]
Obtained	21.5% [14]	71.4% [10]
Esophagram findings at OSH			0.90
Contained perforation	15.4% [10]	70.0% [7]
Uncontained perforation	6.2% [4]	75.0% [3]
Not obtained	78.5% [51]	60.8% [31]
CT findings at OSH			0.03
Contained perforation	24.6% [16]	75.0% [12]
Uncontained perforation	20.0% [13]	76.9% [10]
Pneumomediastinum	46.2% [30]	56.7% [17]
Not obtained	3.1% [2]	100.0% [2]
No evidence of perforation	6.2% [4]	0.0% [0]
Pleural effusion at OSH			<0.01
Yes	36.9% [24]	83.3% [20]
No	60.0% [39]	48.7% [19]
Unknown	3.1% [2]	100.0% [2]
Esophagram findings at UCH			<0.01
Contained perforation	13.8% [9]	100.0% [9]
Uncontained perforation	10.8% [7]	100.0% [7]
No evidence of perforation	30.8% [20]	5.0% [1]
Not obtained	44.6% [29]	82.8% [24]
CT findings at UCH			0.36
Contained perforation	6.2% [4]	75.0% [3]
Uncontained perforation	1.5% [1]	100.0% [1]
No evidence of perforation	6.2% [4]	25.0% [1]
Not obtained	86.2% [56]	64.3% [36]

Data are presented as % [n]. CT, computed tomography; OSH, outside hospital; UCH, University of Colorado Hospital.