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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)