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. 2021 Sep 25;21:353. doi: 10.1186/s12876-021-01930-2

Table 3.

PSC patients and controls enrolled in the current protocol (IRB #16-005892)

Variable PSC patients Controls
n 323 710
Age (yrs)a, median (IQR) 52.6 (36.7–65.1) 67.5 (58.3–73.3)
Sex, n (%) male 181 (56.0) 226 (31.8)
Raceb, n (%) Caucasian 311 (96.3) 693 (98.3)
Available specimens, n (%) of participants [total # of aliquots]
Genomic DNA / BC 318 (98.5) [646] 706 (99.4) [1,409]
Plasma 318 (98.5) [1,273] 706 (99.4) [2,736]
Serum 316 (97.8) [1,143] 705 (99.3) [2,432]
PBMC 317 (98.1) [967] 706 (99.4) [2,118]
RNA (whole blood) 318 (98.5) [647] 705 (99.3) [1,410]
Cell-free DNA (plasma) 315 (97.5) [321] 703 (99.0) [703]
Stool 245 (75.8) [733] 678 (95.5) [2,034]
Urine 269 (83.3) [1,224] 676 (95.2) [3,131]
Bile 34 (10.5) [128] na
Liver tissue 18 (5.6) [107] na
Age at PSC dx (yrs), median (IQR) 41.5 (28.8–54.3) na
PSC duration (yrs)a, median (IQR) 6.1 (2.1–12.6) na
IBD type, n (%) of patients
Ulcerative colitis 203 (62.8) na
Crohn’s Disease 43 (13.3)
Indeterminate IBD 6 (1.9)
No IBD 71 (22.0)
Clinical follow-upc, n (%) of patients
None 103 (31.9) na
0–3 Years 217 (67.2)
3–6 Years 3 (0.9)
6 + Years 0
Liver transplant, n (%) of patients
Prior to enrollment 9 (2.8) na
In follow-up 24 (7.4)
No liver transplant 290 (89.8)
Advanced diseased, n (%) of patients
Prior to enrollment 87 (26.9) na
In follow-up 20 (6.2)
No advanced disease 216 (66.9)
Hepatobiliary Cancere, n (%) of patients
Prior to enrollment 22 (6.8) na
In follow-up 7 (2.2)
No hepatobiliary cancer 294 (91.0)

na, not applicable; BC, buffy coat; PBMC, peripheral blood mononuclear cells; IBD, inflammatory bowel disease

aAt time of blood sample collection

bRace information not available for five controls

cClinical follow-up post first blood sample collection performed under IRB#16-005892

dAdvanced disease defined as having one or more of the following: liver transplant, cirrhosis determination or hepatic decompensation event

eHepatobiliary cancer defined as having one or more of the following: cholangiocarcinoma, hepatocellular carcinoma or gallbladder cancer