Characteristics | Â | Â | N | %a |
---|---|---|---|---|
Gender | Â | Â | Â | Â |
 | Male |  | 39 | 57 |
 | Female |  | 30 | 43 |
Age (y) | Â | Â | Â | Â |
 | Mean | 63 | - | - |
 | Range | 42-84 | - | - |
Stage b | Â | Â | Â | Â |
 | IB |  | 1 | 2 |
 | IIA |  | 7 | 10 |
 | IIB |  | 29 | 42 |
 | III |  | 10 | 14 |
 | IV |  | 22 | 32 |
Grading | Â | Â | Â | Â |
 | Not reported |  | 32 | 46 |
 | 1 |  | 4 | 6 |
 | 2 |  | 16 | 23 |
 | 3 |  | 17 | 25 |
Primary site | Â | Â | Â | Â |
 | Head |  | 49 | 71 |
 | Body |  | 6 | 9 |
 | Tail |  | 5 | 7 |
 | Body-Tail |  | 9 | 13 |
ECOG PS | Â | Â | Â | Â |
 | Not reported |  | 10 | 14 |
 | 0 |  | 32 | 47 |
 | 1 |  | 25 | 36 |
 | ≥2 |  | 2 | 3 |
Surgery with radical intent | Â | Â | Â | Â |
 | Yes |  | 39 | 57 |
 | No |  | 30 | 43 |
Baseline CA19.9 (IU/ml) | Â | Â | Â | Â |
 | Evaluable |  | 63 | 91 |
 | Mean | 3052 | - | - |
 | Median | 500 | - | - |
 | Range | 2- > 12000 | - | - |
First-line chemotherapy c | Â | Â | Â | Â |
 | Evaluable |  | 59 | 86 |
 | Gem |  | 43 | 73 |
 | Gem/Oxal |  | 10 | 17 |
 | Gem/5-FU |  | 3 | 5 |
 | Non-Gem |  | 1 | 2 |
 | No CT |  | 2 | 3 |
ENOA1,2 Reactivity | Â | Â | Â | Â |
 | Evaluable |  | 50 | 73 |
 | Positive |  | 34 | 68 |
 | Negative |  | 16 | 32 |