Table 1.
Cohort characteristics
(*low: 0-1 mitoses per 50 high power fields; intermediate: 2-50 mitoses per 50 high power fields; and high: ≥50 mitoses per 50 high power fields)
| Variable | Variable Categories (Number of patients) | Missing | |||
|---|---|---|---|---|---|
| Age At Diagnosis | ≥60 years (49) | >60 years (49) | 0 | ||
| Race | White (74) | Black (8) | Hispanic (9) | Asian (6) | 1 |
| Gender | Female (60) | Male (38) | 0 | ||
| Functional Status | Functional (19) | Non-functional (79) | 0 | ||
| Localization | Head/Neck (49) | Body/Tail (47) | 2 | ||
| Necrosis | No (55) | Yes (23) | 20 | ||
| Mitotic Index* | No/Low (51) | Intermediate/High (26) | 21 | ||
| Differentiation | Well-differentiatied (53) | Poorly-differentiated (9) | 36 | ||
| Lymph node metastasis | No (46) | Yes (23) | 29 | ||
| Perineural and/or lymphovascular invasion | No (41) | Yes (42) | 15 | ||
| Metastasis and/or Invasion to adjacent organs | No (59) | Yes (39) | 0 | ||
| Distant metastasis | No (79) | Yes (18) | 1 | ||
| Size | ≥2cm (32) | >2cm (60) | 6 | ||
| WHO classification system | Stage 1.1 (17) | Stage 1.2 (29) | Stage 2 (25) | Stage 3 (9) | 18 |
| Chronic Pancreatitis | No (55) | Yes (29) | 14 | ||
| History of Other Cancer | No (40) | Yes (24) | 34 | ||
| Cholelithiasis | No (67) | Yes (15) | 16 | ||
| Cancer in first Degree Relatives | No cancer (31) | Cancer (29) | 38 | ||
| AST | Normal (81) | Elevated (11) | 6 | ||
| ALT | Normal (72) | Elevated (16) | 10 | ||
| Alkaline Phosphatase | Normal (84) | Elevated (8) | 6 | ||
| Albumin | Normal (34) | Elevated (58) | 6 | ||
| Total bilirubin | Normal (87) | Elevated (5) | 6 | ||
| CA 19-9 | Normal (46) | Elevated (7) | 45 | ||
| CEA | Normal (45) | Elevated (9) | 44 | ||
| Surgical Resection | No (15) | Any (83) | 0 | ||