How to Differentiate Sites of Gastrointestinal Bleeding in Patients with Hematochezia by Using Clinical Factors?

Table 3

Clinical signs and laboratory results of patients presented with hematochezia categorized by sites of bleeding as upper (UGIB) or lower (LGIB) gastrointestinal bleeding.

Variables	UGIB group; 𝑁=30	LGIB group; 𝑁=43	𝑃 value
Systolic blood pressure, mmHg	114.3 (18.0)	132.5 (18.7)	<0.001
Diastolic blood pressure, mmHg	66.7 (12.8)	72.8 (9.9)	0.025
Pulse rate, bpm	88.7 (15.4)	86.1 (20.3)	0.558
Hematocrit, %	26.4 (6.4)	32.3 (7.3)	0.001
Platelet count, cells/mm^3	249133.3 (93282.6)	280511.6 (91692.1)	0.159
INR, seconds	1.2 (0.5)	1.1 (0.2)	0.100
Blood urea nitrogen (BUN), mg/dL	29.0 (17.6)	19.3 (17.8)	0.024
Serum creatinine (Cr), mg/dL	1.2 (0.8)	1.4 (1.7)	0.415
BUN/Cr ratio	26.6 (13.8)	15.5 (6.9)	<0.001
Serum albumin, g/dL	3.4 (0.6)	3.6 (0.7)	0.250

Data presented as mean (standard deviation); INR: international normalized ratio; laboratory values were measured at presentation to the emergency department.