Table 2 Subgroup analysis of the prognosis of extrahepatic cholangiocarcinoma at early stage
Subgroup | Studies included | Overall survival | |||
|---|---|---|---|---|---|
Participants | Effect model | OR (95% CI) | P | ||
pN0M0, HGD/CIS vs. R0 | |||||
1 year | 4 | 354 | Fixed | 0.54 (0.21–1.36) | 0.19 |
2 years | 4 | 354 | Fixed | 0.75 (0.35–1.58) | 0.44 |
3 years | 4 | 354 | Fixed | 0.74 (0.40–1.37) | 0.34 |
pN0M0, HGD/CIS vs. INV | |||||
1 year | 4 | 85 | Fixed | 3.47 (1.09–11.02) | 0.03 |
2 years | 4 | 85 | Fixed | 9.12 (2.98–27.93) | < 0.001 |
3 years | 4 | 85 | Fixed | 9.17 (2.95–28.55) | < 0.001 |