Table 2 Crude incidence of cholangiocarcinoma within 0–2 years and 2 years after the choledocholithiasis diagnosis
From: Choledocholithiasis as a risk factor for cholangiocarcinoma: a nationwide retrospective cohort study
All cholangiocarcinoma (n = 548) | Extrahepatic cholangiocarcinoma (n = 238) | Intrahepatic cholangiocarcinoma (n = 310) | |||||
|---|---|---|---|---|---|---|---|
Age at enrollment | Total No. (n = 20,808) | Within 0–2 years (n = 194) | After ≥ 2 years (n = 354) | Within 0–2 years (n = 118) | After ≥ 2 years (n = 120) | Within 0–2 years (n = 76) | After ≥ 2 years (n = 234) |
< 50 | 4,340 | 14 (0.32%) | 14 (0.32%) | 7 (0.16%) | 5 (1.15%) | 7 (0.16%) | 9 (0.21%) |
50–59 | 3,602 | 24 (0.67%) | 68 (1.89%) | 16 (0.44%) | 23 (0.64%) | 8 (0.22%) | 45 (1.25%) |
60–69 | 5,221 | 64 (1.22%) | 131 (2.51%) | 38 (0.73%) | 39 (0.75%) | 26 (0.49%) | 92 (1.76%) |
70–79 | 5,336 | 71 (1.33%) | 107(2.01%) | 44 (0.82%) | 40 (0.75%) | 27 (0.51%) | 67 (1,25%) |
≥ 80 | 2,309 | 21 (0.91%) | 34 (1.47%) | 13 (0.56%) | 13 (0.56%) | 8 (0.35%) | 21 (0.91%) |