Retrospective Study
Copyright ©The Author(s) 2019.
World J Gastrointest Endosc. Jan 16, 2019; 11(1): 41-53
Published online Jan 16, 2019. doi: 10.4253/wjge.v11.i1.41
Table 2 Clinical characteristics of adult discharges with cholangitis who underwent endoscopic retrograde cholangiopancreatography during their hospital stay (n = 4570), stratified by timing to endoscopic retrograde cholangiopancreatography, Nationwide Readmission Database January–November, 2014 n (%)
ERCP timing
P Value
Late ERCP, 1528 (33.4)Early ERCP, 3042 (66.6)
Clinical characteristics
Age, mean (SD), yr65.1 (18.3)63.6 (18.1)0.0089
Age category0.0560
Young adults (18-39 yr)179 (11.7)378 (12.4)
Middle age (40-64 yr)472 (30.9)1031 (33.9)
Older adults (> 65 yr)877 (57.4)1633 (53.7)
Male sex717 (46.9)1485 (48.8)0.2271
Abdominal pain87 (5.7)115 (3.8)0.0030
Jaundice115 (7.5)178 (5.9)0.0292
Cholelithiasis430 (28.1)918 (30.2)0.5810
Choledocholithiasis968 (63.4)2093 (68.8)0.0088
Biliary obstruction291 (19.0)436 (14.3)< 0.0001
Acute pancreatitis238 (15.6)428 (14.1)0.1734
Chronic pancreatitis41 (2.7)57 (1.9)0.0747
Malignant pancreatic neoplasm92 (6.0)117 (3.8)0.0009
Cholangiocarcinoma of bile duct46 (3.0)69 (2.3)0.1300
Solid tumor without metastasis95 (6.2)156 (5.1)0.1274
Metastatic cancer78 (5.1)117 (3.8)0.0470
Severe Cholangitis108 (7.1)233 (7.7)0.4729
≥ 4 Elixhauser comorbidities365 (23.9)549 (18.0)< 0.0001
Elixhauser mortality index mean (SD)6.9 (5.4)4.5 (3.9)< 0.0001
Elixhauser readmission index mean (SD)14.0 (14.3)11.4 (12.9)< 0.0001
ERCP techniques
Endoscopic sphincterotomy1057 (69.2)2,118 (69.6)0.7554
Biliary/ampullary balloon dilation232 (15.2)394 (13.0)0.0385
Biliary stent737 (48.2)1424 (46.8)0.3638
Biliary stone extraction827 (54.1)1862 (61.2)< 0.0001
ERCP-pancreatic with intervention56 (3.7)108 (3.6)0.8442
Admission characteristics
Weekend admission475 (31.1)615 (20.2)< 0.0001
Primary payer0.0002
Medicare835 (54.7)1576 (51.8)
Medicaid223 (14.6)379 (12.5)
Private353 (23.1)882 (29.0)
Self-pay/uninsured115 (7.5)203 (6.7)
Discharge disposition< 0.0001
Discharged to home or self-care1086 (71.1)2441 (80.2)
Transfer: Short-term hospital11 (0.7)29 (1.0)
Transfer: Other type of facility171 (11.2)220 (7.2)
Home health care217 (14.2)302 (9.9)
Against medical advice6 (0.4)13 (0.4)
Died in the hospital37 (2.4)36 (1.2)