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Table 1 Characteristics of the study population nested within the Danish cohort Diet, Cancer and Health.

From: A haplotype of polymorphisms in ASE-1, RAI and ERCC1and the effects of tobacco smoking and alcohol consumption on risk of colorectal cancer: a danish prospective case-cohort study

  Cases Sub-cohort
Total a 405 (100) 810 (100)
Gender a   
Men 221 (55) 442 (54)
Women 184 (45) 368 (46)
Age at inclusion b 58 (51–64) 56 (50–63)
Age at diagnosis b 62 (54–70) -
Alcohol intake, g/dayb   
Total 13 (1–69) 12 (1–63)
Men 23 (2–88) 19 (1–77)
Women 8 (0–41) 8 (1–39)
Smoking status at inclusion a   
Never 123 (30) 272 (33)
Former 122 (30) 252 (31)
Present 160 (40) 286 (36)
Smoking intensity, g tobacco/dayb   
Total 15 (4–37) 15 (2–35)
Men 19 (4–41) 18 (2–40)
Women 12 (3–22) 12 (2–23)
Smoking duration, yearsb   
Total 34 (8–47) 32 (6–46)
Men 34 (8–48) 32 (8–48)
Women 34 (7–45) 32 (4–44)
  1. a) Number (%)
  2. b) Median (5–95% percentiles)