Retrospective Cohort Study
Copyright ©The Author(s) 2018.
World J Gastroenterol. Nov 7, 2018; 24(41): 4691-4697
Published online Nov 7, 2018. doi: 10.3748/wjg.v24.i41.4691
Table 1 Baseline characteristics of 492175 nationally estimated discharges in the Nationwide Inpatient Sample from 2011 to 2013 who underwent endoscopic retrograde cholangiopancreatography comparing end-stage renal disease and chronic kidney disease to control group without renal disease n (%)
ESRD, n = 7347Control, n = 445424P valueCKD, n = 39403P value
Age, mean (SE), yr65.5 (0.42)58 (0.12)< 0.00175.35 (0.18)< 0.001
Female3477 (47.3)271300 (61)< 0.00117626 (44.7)< 0.001
Race< 0.001< 0.001
White3221 (43.8)280738 (63)26905 (68.3)
Black1520 (20.7)36875 (8.3)3517 (8.9)
Hispanic1467 (20)68492 (15.4)3729 (9.5)
Asian/Pacific Islander454 (6.2)14081 (3.2)1466(3.7)
Native American105 (1.4)2828 (0.6)185 (0.5)
Other235 (3.2)14928 (3.3)982 (2.5)
Missing344 (4.7)27483 (6.2)2619 (6.6)
Charlson comorbidity index< 0.001< 0.001
00203229 (45.6)0 (0)
10104584 (23.5)0 (0)
2975 (13.3)55808 (12.5)6417 (16.3)
> 26372 (86.7)81804 (18.4)32986 (83.7)
Coagulopathy668 (9)15102 (3.4)< 0.0012633 (6.7)< 0.001
ERCP indication< 0.001< 0.001
Diagnostic1990 (27)102074 (22.9)9493 (24.1)
Therapeutic5257 (73)343350 (77.1)29910 (75.9)
Health insurance< 0.001< 0.001
Medicare5655 (77)189044 (42.7)31759 (80.7)
Medicare923 (9.9)59219 (13.4)1718 (4.4)
Private827 (11.3)142807 (32.3)4766 (12)
Self-pay40 (0.5)32785 (7.4)463 (1.2)
Others92 (1.3)18822 (4.2)670 (1.7)
Table 2 In-hospital complications after endoscopic retrograde cholangiopancreatography from 2011 to 2013 based on data from the Nationwide Inpatient Sample comparing end-stage renal disease to controls n (%)
Type of complicationsESRDn = 7347Controln = 445424CrudeOR/MD (95%CI)AdjustedOR/MD (95%CI)AdjustedP value
Death526 (7.1)5138 (1.15)6.6 (5.3-8.2)3.7 (2.9–4.6)< 0.001
Pancreatitis611 (8.3)20315 (4.6)1.9 (1.6-2.3)1.7 (1.4-2.1)< 0.001
Bleeding377 (5.1)6546 (1.5)3.6 (2.86-4.59)1.86 (1.4-2.4)< 0.001
Perforation14 (0.2)340 (0.07)2.6 (0.8–8.4)3 (0.86–10.00)0.08
Length of hospital stay, mean days (SE)13 (0.46)6 (0.03)7.2 (6.4-8.0)5.9 (5.0-6.7)< 0.001
Table 3 In-hospital complications after endoscopic retrograde cholangiopancreatography from 2011 to 2013 based on data from the Nationwide Inpatient Sample comparing chronic kidney disease to controls n (%)
Type of complicationsCKDn = 39403Controln = 445424CrudeOR/MD (95%CI)AdjustedOR/MD (95%CI)AdjustedP value
Death1176 (3)5138 (1.15)2.6 (2.3-3.0)1.3 (1.14-1.55)0.001
Pancreatitis750 (6.8)20315 (4.6)1.5 (1.3-1.6)1.5 (1.3-1.7)< 0.001
Bleeding1454 (3.7)6546 (1.5)2.56 (2.25–2.90)1.4 (1.2-1.6)< 0.001
Perforation43 (0.1)340 (0.07)1.4 (0.7–2.9)1.36 (0.6–3.2)0.5
Length of hospital stay, mean days (SE)8.5 (0.11)6 (0.03)2.45 (2.24-2.67)1.4 (1.20-1.65)< 0.001