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Table 1 Baseline of the characteristics of patients

From: Effect of mobile phone reminder messages on adherence of stent removal or exchange in patients with benign pancreaticobiliary diseases: a prospectively randomized, controlled study

  SMS group (n = 23) Control (n = 25) P value
Age 54.4 ± 15.0 52.2 ± 19.5 0.672
Male (%) 14 (60.9 %) 11 (44 %) 0.265
Smoking 7 3 0.162
Drinking 4 6 0.727
Education    1.000
 Elementary school or less 5 6  
 High school or higher 18 19  
Payment    0.610
 By insurance 22 22  
 By self 1 3  
Previous Stenting    0.511
 Yes 7 5  
 No 16 20  
Previous surgery    0.818
 Cholecystectomy 8 7  
 Liver transplantation 0 1  
 Other 3 2  
Main symptom    0.467
 Jaundice 7 4  
 Fever 1 2  
 Abdominal pain 13 16  
Chemical test before ERCP    
 White blood cell (×109) 5.8 ± 1.3 5.6 ± 2.8 0.714
 Total bilirubin (mg/dL) 60.6 ± 93.3 30.0 ± 65.9 0.193
 Alkaline phosphatase (U/L) 336.5 ± 324.2 125.8 ± 76.2 0.003
Stricture site    0.849
 Proximal CBD 6 7  
 Distal CBD 11 10  
 PD 6 8  
Reason for stenting    0.501
 Biliary benign stricture 10 12  
 Pancreatic benign stricture 10 8  
 Other 3 5  
Stent type    0.719
 Plastic stent (average number of stents) 18 (1.39) 21 (1.43)  
 FCSEMS 5 4  
ERCP complication    1.000
 Pancreatitis 1 1  
 Biliary infection 2 1  
  1. CBD common bile duct, PD pancreatic duct, FCSEMS fully covered self-expanded metal stent