Variable | Non-AC group | AC group | All subjects |
---|---|---|---|
No of subjects | 9 | 40 | 49 |
Age (years-old ± SEM)a | 72.89 ± 6.03 | 80.15 ± 1.71 | 78.82 ± 1.79) |
Sex | Â | Â | Â |
 Males | 3 (33.3%) | 24 (60%) | 27 (55.1%) |
 Females | 6 (66.7%) | 16 (40%) | 22 (44.9%) |
Underlying diseases | Â | Â | Â |
 Biliary lithiasis | 5 (55.6%) | 30 (75%) | 35 (71.4%) |
 Type 2 diabetes mellitus | 4 (44.4%) | 8 (20.0%) | 12 (24.5%) |
 Stroke sequalae | 0 (0%) | 2 (5.0%) | 2 (4.1%) |
 Chronic kidney disease | 1 (11.1%) | 2 (5.0%) | 3 (6.1%) |
 Lemmel syndrome | 0 (0%) | 1 (2.5%) | 1 (2.0%) |
 Malignant tumors |  |  |  |
  Cholangiocarcinoma | 0 (0%) | 4 (10.0%) | 4 (8.1%) |
  Pancreatic cancer | 2 (22.2%) | 1 (2.5%) | 3 (6.1%) |
  Duodenal papillary cancer | 0 (0%) | 1 (2.5%) | 1 (2.0%) |
  Cholangiocarcinoma + pancreatic cancer | 0 (0%) | 1 (2.5%) | 1 (2.0%) |
  Hepatocellular carcinoma + gastric cancer | 0 (0%) | 1 (2.5%) | 1 (2.0%) |
  Lung cancer | 1 (11.1%) | 0 (0%) | 1 (2.0%) |
  Pancreatic cancer + breast cancer | 1 (11.1%) | 1 (2.5%) | 2 (4.1%) |
  Thymoma | 0 (0%) | 1 (2.5%) | 1 (2.0%) |
  Rectal carcinoma | 0 (0%) | 1 (2.5%) | 1 (2.0%) |
  Cholangiocarcinoma + prostate cancer |  | 1 (2.5%) | 1 (2.0%) |
Causes of biliary obstruction | Â | Â | Â |
 Lithiasis | 5 (55.6%) | 29 (72.5%) | 34 (69.3%) |
 Malignant tumor | 4 (44.4%) | 9 (22.5%) | 13 (26.5%) |
 Lithiasis + malignant tumor | 0 (0%) | 1 (2.5%) | 1 (2.0%) |
 Lemmel syndrome | 0 (0%) | 1 (2.5%) | 1 (2.0%) |
 History of sphincterotomy | 2 (22%) | 9 (13%) | 11 (23%) |
 Grade of AC |  |  |  |
  Grade I (mild) |  | 18 (45%) | 18 (36.7%) |
  Grade II (moderate) |  | 12 (30%) | 12 (24.5%) |
  Grade III (severe) |  | 10 (25%) | 10 (20.4%) |