From: Intensity modulated radiotherapy for locally advanced and metastatic pancreatic cancer: a mono-institutional retrospective analysis
Variable
Category
Hazard ratio
95% CI
p value *
Tumor location
Body/tail
0.28
0.11 - 0.71
0.008
Head
1
CA19-9 at diagnosis (U/mL)
<1000
0.36
0.14 - 0.90
0.029
≥1000
Concurrent chemotherapy
Yes
0.37
0.16 - 0.83
0.016
No