Patient characteristics with high or low blood urea nitrogen in upper gastrointestinal bleeding

Table 2 Comparison of variables between patients with blood urea nitrogen higher and lower than 21.0 mg/dL

Variable	No. of patients	H group (n = 20)	L group (n = 36)	P value
Age (yr)	56	69.7 ± 17.3	71.1 ± 9.4	0.7040
WBC (102/μL)	56	9575 ± 5088	6700 ± 2187	0.0047
Hb (g/dL)	56	8.64 ± 3.47	10.6 ± 3.09	0.0307
CRP (mg/dL)	39	1.66 ± 2.03	0.99 ± 0.85	0.1557
Plt (104/μL)	54	23.1 ± 8.4	29.4 ± 12.8	0.0629
TP (g/dL)	35	5.70 ± 0.98	6.20 ± 0.68	0.0874
Alb (g/dL)	36	3.32 ± 0.69	3.53 ± 0.62	0.3546
T-Bil (mg/dL)	44	0.62 ± 0.40	0.71 ± 0.63	0.6461
ALP (IU/L)	32	178 ± 53	260 ± 159	0.1449
AST (IU/L)	51	23.7 ± 12.0	27.1 ± 25.3	0.6062
ALT (IU/L)	53	25.9 ± 26.0	18.0 ± 14.9	0.1654
γ-GTP (IU/L)	29	22.6 ± 14.3	82.8 ± 107	0.2031
LDH (IU/L)	15	42.7 ± 6.6	46.0 ± 10.8	0.6261
UA (mg/dL)	24	5.84 ± 2.47	5.00 ± 1.93	0.3638
BUN (mg/dL)	56	36.3 ± 17.3	12.3 ± 3.8	< 0.0001
Cre (mg/dL)	56	1.09 ± 0.37	0.83 ± 0.32	0.0086
BUN/Cre	56	35.0 ± 13.2	16.1 ± 6.3	< 0.0001
T-Chol (mg/dL)	21	143 ± 37	145 ± 47	0.9102
TG (mg/dL)	16	98 ± 68	101 ± 48	0.9408
HDL (mg/dL)	15	42.7 ± 6.6	46.0 ± 10.8	0.6261
LDL (mg/dL)	14	72.7 ± 38.4	95.5 ± 30.5	0.2954
BG (mg/dL)	32	164 ± 92	121 ± 34	0.0622
HbA1c (%)	21	6.31 ± 1.04	5.54 ± 0.46	0.0264

H group: Patients with BUN > 21.0 mg/dL; L group: Patients with BUN < 21.0 mg/dL; WBC: White blood cell count; Hb: Hemoglobin; CRP: C-reactive protein; Plt: Platelet; TP: Total protein; Alb: Albumin; T-Bil: Total bilirubin; ALP: Alkaline phosphatase; AST: Aspartate aminotransferase; ALT: Alanine aminotransferase; γ-GTP: Gamma-glutamyl transpeptidase; LDH: Lactate dehydrogenase; UA: Uric acid; BUN: Blood urea nitrogen; Cre: Creatinine; T-Chol: Total cholesterol; TG: Triglyceride; HDL: High-density lipoprotein cholesterol; LDL: Low-density lipoprotein cholesterol; BG: Blood glucose; HbA1c: Glycated hemoglobin.