Table 1.

Distribution of selected variables among patients and controls

VariablePatients (N = 626) n (%)Controls (N = 530) n (%)P value (χ2)
Age at recruitment (y)0.35
    ≤5082 (13.1)74 (14.0)
    51-60176 (28.1)169 (31.9)
    61-70242 (38.7)180 (34.0)
    >70126 (20.1)107 (20.2)
Gender0.03
    Female282 (45.0)205 (38.7)
    Male344 (55.0)325 (61.3)
Race<0.01
    Non-Hispanic white542 (86.6)492 (92.8)
    Hispanic33 (5.3)21 (4.0)
    African American43 (6.9)15 (2.8)
    Others8 (1.3)2 (0.4)
Education*<0.01
    <High school60 (9.7)13 (2.5)
    High school159 (25.7)119 (22.5)
    College301 (48.7)306 (57.7)
    Graduate degree98 (15.9)92 (17.4)
Family history of cancer<0.01
    No218 (35.1)235 (44.4)
    Yes403 (64.9)293 (55.4)
History of pancreatitis<0.01
    No573 (91.5)524 (98.9)
    Yes53 (8.5)6 (1.1)
History of diabetes<0.01
    No480 (76.7)474 (89.4)
    Yes146 (23.3)56 (10.6)
Smoking status<0.01
    Never259 (41.4)269 (50.8)
    Ever367 (58.6)261 (49.2)
Alcohol consumption0.05
    Never268 (42.8)248 (47.0)
    ≤60 g/day307 (49.0)255 (48.3)
    >60 g/day51 (8.1)25 (4.7)
  • * Information on education was missing from eight cases.

  • Information is missing from five cases and two controls because of adopted family.