Table 1: Characteristics of cirrhotic patients of the training and validation samples.

Training sampleValidation sample (n = 91)
All (n = 111)NOV (n = 26)OV (n = 85)P value

Age (years) [median (range)]49 (62)52 (52)49.5 (63)0.350 (59)
Sex (female) [n (%)]33 (29.7)14 (56)19 (22.4)0.00235 (38.5)
Collateral venous circulation [n (%)]24 (21.6) 4 (15.4)20 (23.5)0.35 (5.5)
Clinical ascites [n (%)]84 (75.7)21 (80.8)63 (74.1)0.366 (72.5)
Total bilirubin (mg/dL) [median (range)]17.8 (247)13 (248)14 (234)0.97 (247)
Prothrombin time (%) [median (range)]55 (86)67 (82)56 (86)0.264 (79)
Albumin (g/L) [median (range)]26 (37)25 (29)25 (34)0.322 (25)
Platelet count (×103/mL) [median (range)]930 (404)146 (491)90 (553)0.0001113 (553)
Spleen diameter (mm) [median (range)]139 (123)110 (123)136 (124)0.002101 (123)
Portal vein diameter (mm) [median (range)]12.8 (14)11.8 (7)12 (14)0.810 (8)
PC/SD ratio [median (range)]651.5 (2523)1390 (4921.2)642.8 (5530)0.0001880 (5530)
Child-Pugh score [n (%)]0.4
 A25 (22.5)4 (15.4)21 (24.7)18 (19.8)
 B39 (35.1)12 (46.2)27 (31.8)48 (52.7)
 C47 (42.3)10 (38.5)37 (43.5)20 (22.0)
Oesophageal varices [n (%)]
 No varices26 (23.4)19 (20.9)
 Stage 17 (6.3)12 (13.2)
 Stage 254 (48.6)34 (37.4)
 Stage 324 (21.6)26 (28.6)
Aetiologies of cirrhosis [n (%)]a0.3
 HBV68 (61.3)16 (61.5)52 (61.2)53 (58.2)
 HCV14 (12.6)4 (15.4)10 (11.8)14 (15.4)
 HBV + HCV coinfection2 (1.8)02 (20)
 Alcohol23 (20.7)6 (23.1)17 (20)24 (26.4)
 Mixed (viral and alcohol)4 (3.6)04 (4.7)

NOV: no oesophageal varices, OV: oesophageal varices, PC/SD ratio: platelet count-spleen diameter ratio, HBV: hepatitis B virus, HCV: hepatitis C virus
aAetiologies were grouped in 2 classes: viral and others (viral and/or alcohol).