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Table 3 Odds Ratios (OR) and 95% confidence intervals (CI) for pancreatic cancer (PanCA) associated with cigarette smoking cessation, San Francisco Bay Area, California.

From: Cigarette, cigar and pipe smoking, passive smoke exposure, and risk of pancreatic cancer: a population-based study in the San Francisco Bay Area

   PanCAa Controlsa  
   N = 516 N = 1628 OR (95% CI)b
   n (%) n (%)  
  Never smoked 163 (32) 650 (40) 1.0 (Ref.)
Years since last smokedc     
  >25 97 (19) 370 (23) 0.98 (0.72 - 1.3)
  20-<25 25 (5) 89 (5) 0.92 (0.55 - 1.5)
  15-<20 23 (4) 92 (6) 0.84 (0.5 - 1.4)
  10-<15 33 (6) 87 (5) 1.2 (0.75 - 1.9)
  <10 31 (6) 51 (3) 1.6 (1.1 - 2.3)
  Current smokerd 112 (22) 197 (12) 1.9 (1.4 - 2.7)
  1. a The number of participants may vary because of missing data
  2. b Adjusted for: age, education, race, ethnicity, diabetes, pancreatitis, gallbladder disease, alcohol intake and body mass index
  3. c Includes smokers who quit ≥1 year prior to diagnosis/interview
  4. d Includes former smokers who quit within the immediate 1 year prior to interview