Brief Article
Copyright ©2011 Baishideng Publishing Group Co.
World J Gastroenterol. Aug 28, 2011; 17(32): 3724-3732
Published online Aug 28, 2011. doi: 10.3748/wjg.v17.i32.3724
Table 1 Characteristics of patients for the entire group and for each cohort
TotalPatients aged65 yrPatients aged < 65 yrP value
(n = 526)(n = 235)(n = 291)
Age (yr)60 ± 15.974.2 ± 6.748.4 ± 11.1< 0.001
Male: n (%)370 (70)148 (63)222 (76)< 0.001
Presenting symptoms: 1n (%)
Hematemesis207 (39)65 (28)142 (49)< 0.001
Melena214 (41)126 (53)88 (30)< 0.001
“Coffee ground” vomiting86 (16)36 (15)50 (17)0.57
Hematochezia19 (4)8 (4)11 (4)0.82
Clinical findings: n (%)
Red blood on nasogastric lavage97 (18)41 (17)56 (19)0.60
Systolic blood pressure < 100 mmHg163 (31)62 (26)101 (35)0.04
Heart rate > 100 beats/min192 (37)63 (27)129 (44)< 0.001
Presence of hemodynamic instability313 (60)114 (49)199 (68)< 0.001
Comorbid illness: 1n (%)
Cardiovascular disease109 (21)81 (34)28 (10)< 0.001
Cerebrovascular disease49 (9)34 (14)15 (5)< 0.001
Chronic renal failure37 (7)17 (7)20 (7)0.87
Liver cirrhosis140 (27)45 (19)95 (33)< 0.001
Cancer64 (12)33 (14)31 (11)0.24
Diabetes mellitus126 (24)87 (37)39 (1)< 0.001
Hypertension186 (35)125 (53)61 (21)< 0.001
Alcohol drinking: n (%)246 (47)66 (28)180 (62)< 0.001
Previous use of medications: 1n (%)
Low-dose aspirin111 (21)82 (35)29 (10)< 0.001
Clopidogrel33 (6)30 (13)3 (1)< 0.001
Warfarin38 (7)22 (9)16 (6)0.09
NSAID other than aspirin123 (23)57 (24)66 (23)0.67
Laboratory features at presentation:
Hemoglobin (g/dL)8.7 ± 4.78.4 ± 2.39.0 ± 6.00.19
White blood count (103/μL)11.8 ± 8.111.2 ± 5.312.3 ± 9.70.15
Platelets (103/μL)232 ± 125242 ± 116223 ± 1310.09
Prothrombin time (s)13.4 (11.4-248)13.2 (11.4-160)13.9 (11.4-248)0.84
Creatinine (mg/dL)1.1 (0.2-11.8)1.3 (0.4-10.8)0.9 (0.2-11.8)0.44