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Table 2 Odds Ratios (OR) and 95% Confidence Intervals (CI) for the Association of Lung Cancer Risk with Fruit, Vegetable, and Cruciferous Vegetable Intake

From: Cruciferous vegetable intake is inversely associated with lung cancer risk among smokers: a case-control study

  Number Adjusted OR* (95% CI)
  Cases Controls  
Vegetables, servings/mo    
   <46 270 351 1.00
   46-63 194 349 0.78 (0.60-1.01)
   63.5-82 169 348 0.66 (0.50-0.87)
   82.5-109.5 182 355 0.76 (0.58-1.00)
   >109.5 133 340 0.53 (0.40-0.72)
    P = 0.0001
Fruits, servings/mo    
   <19.5 279 362 1.00
   19.5-35 189 341 0.70 (0.54-0.91)
   35.5-52.5 186 357 0.81 (0.62-1.06)
   53-71.5 144 336 0.65 (0.49-0.87)
   >71.5 150 347 0.70 (0.52-0.94)
    P = 0.0172
Cruciferous, servings/mo    
   <5 280 383 1.00
   5-7.5 181 324 0.85 (0.65-1.11)
   8-13.5 198 339 0.87 (0.67-1.13)
   14-25 159 359 0.70 (0.53-0.92)
   >25 130 338 0.59 (0.44-0.79)
    P = 0.0002
Raw cruciferous, servings/mo    
   <1 297 405 1.00
   1-2 203 303 0.95 (0.73-1.23)
   2.5-4 180 362 0.73 (0.56-0.94)
   4.5-10 141 325 0.72 (0.55-0.96)
   >10 127 348 0.58 (0.44-0.78)
    P = 0.0002
  1. * Odds ratios and 95% confidence intervals were calculated with unconditional logistic regression adjusted for age (continuous), education level (<high school or >high school), gender (male or female), total meat intake (continuous), smoking status (never, quit, or current), number of cigarettes per day (continuous), years of smoking (continuous), and year of admission (continuous).