Referencea | Year | Design | Resection margin | Tumor location | Stage | Arm | No. of patients | Overall survival | ||
---|---|---|---|---|---|---|---|---|---|---|
Median (months) | 5-year rate (%) | P value | ||||||||
Takada [9] | 2002 | Prospective | R0–R2 | GB | II–IV | FM Observation | 69 43 | NA | 26.0 14.4 | 0.0367 |
Murakami [11] | 2009 | Retrospective | R0, R1 | GB/BD/AoV | II | G + S-1 Observation | 50 53 | NA | 57.0 24.0 | <0.001 |
Neoptolemos [13] | 2012 | Prospective | R0, R1 | BD/AoV | I–IV | FL G Observation | 31 34 31 | 18.3 19.5 27.2 | NA | NA |
Kobayashi [12] | 2012 | Retrospective | R0, R1 | BD | II–IV | G Observation | 51 54 | NA | 46.0 23.0 | 0.002 |
Wirasorn [15] | 2013 | Retrospective | R0, R1 | BD | 0–IV | AC Observation | 138 125 | 21.6 13.4 | 40.1b 29.4b | 0.01 |
Yamanaka [14] | 2013 | Retrospective | R0 | GB/BD/AoV | I–III | G Observation | 40 158 | NA | 68.0b 68.7b | NS |
This present study | Retrospective | R0 | GB/BD | II–III | F-based Observation | 53 32 | NA | 52.4 35.6 | 0.002 |