Table 5.

ORs and 95% CIs for pancreatic cancer and duration of diabetes mellitus by insulin use, population-based case control study, San Francisco Bay Area, California

Diabetes duration (y)Diabetic patients used insulin
Diabetic patients did not use insulin
CaseControlOR*(95% CI)CaseControlOR* (95% CI)
No diabetes4551,5381.0 (reference)4551,5381.0 (reference)
1-412410 (3.2-31)13311.4 (0.73-2.7)
5-91394.8 (2.0-11)10291.1 (0.56-2.4)
≥1014401.2 (0.62-2.1)6370.54 (0.23-1.3)
Trend PP = 0.0003P = 0.11
  • * Adjusted for age and sex.

  • Reference group for all comparisons.