Figure and Table | Predictive Impact of Peritoneal Computed Tomography Attenuation Values for the Severity of Upper Gastrointestinal Perforation

Table 1. Correlation between the Peritoneal CT Levels and the Clinical Data

Variables		Number	Peritoneal CT Levels (HU)	p-Value
Age	≤70	66	36.8 ± 15.4	<0.01
Age	>70	46	27.4 ± 16.4	<0.01
Gender	M	78	35.1 ± 16.2	<0.05
Gender	F	34	28.0 ± 15.9	<0.05
BMI	<22	72	33.1 ± 16.0	0.69
BMI	≤22	40	31.8 ± 16.4	0.69
Hemoglobin	<13	54	30.3 ± 16.8	0.09
Hemoglobin	≤13	58	35.7 ± 14.9	0.09
Hematocrit	<38.6	56	31.1 ± 16.8	0.22
Hematocrit	≤38.6	56	35.1 ± 15.2	0.22
Treatment
	Operation	96	31.9 ± 16.3	0.09
	Conservative	16	39.6 ± 16.5	0.09
Culture test for ascites
	Positive	48	28.3 ± 17.3	<0.05
	Negative	33	35.7 ± 14.6
	Not examined	31	37.2 ± 15.3
Hospital mortality
	Yes	7	12.4 ± 11.0	<0.01
	No	105	34.3 ± 15.8	<0.01

Table 2. Univariate and Multivariate Analyses of Factors that May Affect Peritoneal CT Levels.

Variables	Univariate analysis			Multivariate analysis
Variables	HR	95% CI	p-Value	HR	95% CI	p-Value
Age (>70)	1.70	1.15-2.51	<0.01	1.56	0.91-2.67	0.11
Sex (Male)	0.67	0.44-1.01	0.06	1.05	0.63-1.77	0.84
BMI (>22)	1.20	0.80-1.81	0.38	-	-	-
Site of perforation (Stomach)	0.69	0.44-1.11	0.11	-	-	-
Time after onset (<24 hours)	1.67	0.99-2.83	0.07	1.42	0.80-2.51	0.25
Culture test for ascites (Positive)	1.40	0.89-2.21	0.14	-	-	-
Hospital mortality (Yes)	7.01	3.11-15.8	<0.01	4.42	1.71-11.4	<0.01
SOFA score (>0)	2.02	1.37-2.96	<0.01	1.86	1.16-2.97	<0.01
APACHE II score (>19)	1.81	1.23-2.66	<0.01	1.35	0.78-2.34	0.28
SIRS (Yes)	1.28	0.86-1.92	0.22	-	-	-

Table 3. Peritoneal CT Levels and Clinical Data in Patients with twice Upper Gastrointestinal Perforations.