Table 1. Study population: demographic and clinical characteristics, and laboratory findings.

Characteristic	Data available	Value 1
Clinical
Sex (M/F)	2498	1677 (67.1)/821 (32.9)
Age (years)	2498	68.5 [16.3]
> 75 years		954 (38.2)
Body mass index	2327/2498	25.9 [5.7]
Cirrhosis	2497/2498	524 (20.9)
Child-Pugh score	464/524	8.38 [2.3]
Model for end-stage liver disease score	433/524	15.9 [6.9]
Charlson score	2497/2498	2.71 [2.5]
Glasgow-Blatchford score	2417/2498	10.3 [4.4]
Excessive alcohol consumption	2469/2498	630 (25.5)
Laboratory
Hemoglobin at admission, g/dL	2488/2498	9 [2.9]
Hemoglobin at endoscopy, g/dL	2481/2498	9.47 [2.3]
Lowest hemoglobin level during hospitalization, g/dL	2469/2498	8.2 [2.97]
Prothrombin rate (only cirrhotic patients), %	519/524	54.8 [18.5]
Prothrombin rate at endoscopy (all patients), %	2376/2498	70 [22]
Factor V, %	298/524	61.9 [24.1]
Platelets, /mm 3	2479/2498	221258 [119156]
Bilirubin (only cirrhotic patients), µmol/L	518/524	44.8 [60.5]
Creatinine, µmol/L	960/2498	111.4 [78.1]
Urea, mmol/L	2455/2498	14.1 [11.2]
Albumin (only cirrhotic patients), g/L	464/524	28.5 [6.5]

¹Categorical variables are expressed as number (percentage); continuous variables as mean [standard deviation].