Table 1. Patient Characteristics (n = 153)a.
| Clinical variable | Benign (n=96) | Malignant (n=57) | P valueb |
|---|---|---|---|
| Median Age, years (range) | 59.5 (24-83) | 68 (34-83) | <0.001 |
| Unknown | 0 | 0 | |
| Sex | |||
| Male (n, %) | 29 (30) | 30 (53) | 0.010 |
| Female (n, %) | 67 (70) | 27 (47) | |
| Unknown | 0 | 0 | |
| Median BMI, kg/m2 (range) | 26.4 (15.7-45.1) | 24.5 (17.3-38.5) | 0.263 |
| Unknown | 43 | 22 | |
| Symptoms | |||
| None (n, %) | 21 (23) | 17 (31) | 0.247 |
| Abdominal pain (n, %) | 63 (68) | 28 (52) | 0.078 |
| Jaundice (n, %) | 5 (5) | 9 (17) | 0.039 |
| Weight Loss (n, %) | 18 (19) | 13 (24) | 0.533 |
| Unknown | 3 | 3 | |
| Family history of pancreatic cancer | |||
| Yes (n, %) | 4 (6) | 7 (18) | 0.105 |
| No (n, %) | 58 (94) | 33 (83) | |
| Unknown | 34 | 17 | |
| Diabetes Mellitus | |||
| Yes (n, %) | 20 (21) | 13 (23) | 0.840 |
| No (n, %) | 76 (79) | 43 (77) | |
| Unknown | 1 | 1 | |
| Smoking | |||
| Yes (n, %) | 38 (45) | 22 (44) | >0.99 |
| No (n, %) | 46 (55) | 28 (56) | |
| Unknown | 12 | 7 | |
| Alcohol Use | |||
| Yes (n, %) | 46 (55) | 26 (52) | 0.858 |
| No (n, %) | 38 (45) | 24 (48) | |
| Unknown | 12 | 7 | |
| History of Pancreatitis | |||
| Yes (n, %) | 33 (35) | 8 (14) | 0.008 |
| No (n, %) | 62 (65) | 48 (86) | |
| Unknown | 1 | 1 | |
| History of Other Malignancies | |||
| Yes (n, %) | 14 (15) | 17 (30) | 0.036 |
| No (n, %) | 81 (85) | 39 (70) | |
| Unknown | 1 | 1 | |
| Regular Aspirin Use | |||
| Yes (n, %) | 22 (24) | 15 (27) | 0.697 |
| No (n, %) | 70 (76) | 40 (73) | |
| Unknown | 4 | 2 |
a
Smoking and alcohol use was defined to be positive for current or former users. History of other malignancy is defined any previous diagnosis of cancer other than pancreatic origin.
b
P-values were calculated using chi-square or Fisher exact test for categorical variables and t-test or Wilcoxon for continuous variables.