Table 1

Baseline characteristics of study participants selected from the Danish Diet, Cancer and Health prospective cohort study.

Cases

Sub-cohort

IRRa (95% CI)


No. (%)

Median (5-95%)

No. (%)

Median (5-95%)

Total

359 (100)

765 (100)

Gender

Men

200 (56)

419 (55)

Women

159 (44)

346 (45)

Age at inclusion

59 (51-64)

56 (50-64)

Topology

Proximal segment of colon

42 (12)

-

Distal segment of colon

142 (40)

-

Rectal

129 (36)

-

Not specified

46 (13)

-

BMI, kg/m2

26 (21-34)

26 (20-33)

1.02b

(0.96-1.09)

Food intake

Alcohol, g/day

14 (1-69)

13 (1-64)

1.06b

(1.00-1.13)

Red meat, g/day

82 (36-170)

82 (32-175)

1.02b

(0.94-1.12)

Processed meat, g/day

26 (6-80)

26 (4-78)

1.00b

(0.85-1.19)

Dietary fibers g/day

20 (10-32)

21 (11-34)

0.62b

(0.37-1.02)

Smoking status at inclusion

Never

111 (31)

262 (34)

1.00

-

Former

112 (31)

239 (31)

1.02

(0.73-1.42)

Present

136 (38)

264 (35)

1.15

(0.83-1.61)

NSAID use

No

244 (68)

528 (69)

1.00

-

Yes

115 (32)

237 (31)

1.07

(0.80-1.42)

HRT use among women

Never

93 (58)

181 (52)

1.00

-

Former

25 (16)

60 (17)

0.68

(0.39-1.18)

Present

41 (26)

105 (30)

0.70

(0.44-1.10)


a Mutually adjusted.

b BMI pr. 2 kg/m2. Alcohol pr. 10 g/day. Red meat, processed meat and dietary fibers pr 25 g/day.

Observed median values (5-95 percentiles) or percents of the distribution of alcohol, NSAID, smoking and potential colorectal cancer confounders among cases and members of the comparison group.

Andersen et al. BMC Cancer 2009 9:407   doi:10.1186/1471-2407-9-407

Open Data