Table 2 Short- and long-term survival for resected pancreatic cancer patients receiving chemotherapy estimated by the Kaplan-Meier method
Survival | The US | Belgium | The Netherlands | Slovenia | Norway |
|---|---|---|---|---|---|
OS (95% CI)1 | OS (95% CI) | OS (95% CI) | OS (95% CI) | OS (95% CI) | |
Short-term survival | |||||
 6-month | 94 (94–95) | 95 (94–96) | 97 (96–98) | 95 (89–98) | 96 (91–99) |
 9-month | 87 (86–87) | 86 (84–88) | 89 (87–91) | 79 (70–85) | 90 (83–94) |
Long-term survival | |||||
 1-year | 77 (76–78) | 77 (74–79) | 79 (77–82) | 69 (60–77) | 77 (67–83) |
 2-year | 47 (46–48) | 46 (43–49) | 44 (40–47) | 39 (30–47) | 46 (36–55) |
 3-year | 31 (30–32) | 29 (26–32) | 29 (25–32) | 21 (14–29) | 27 (18–36) |
 5-year | 19 (18–20) | 17 (14–20) | 20 (16–23) | 10 (5–17) | 21 (12–31) |