Table 1

Selected characteristics of subjects from CRC case-control study in NL and ON

Characteristicsa

Cases(n = 1760)

Controls(n = 2481)


No. (%)

No. (%)


Age (years)*

18-49

368(20.9)

265(10.7)

50-59

412(23.4)

690(27.8)

60-69

646(36.7)

998(40.2)

70+

334(19.0)

528(21.3)

Sex

Males

935(53.1)

1357(54.7)

Females

825(46.9)

1124(45.3)

Province of residence

NL

488(27.7)

651(26.2)

ON

1272(72.3)

1830(73.8)

BMIb (kg/m2)*

Underweight(< 18.5)

23(1.3)

22(0.9)

Normal(18.5-24.9)

595(33.8)

930(37.5)

Overweight (25-29.9)

748(42.5)

1069(43.1)

Obese(≥ 30)

394(22.4)

460(18.5)

Physical activity (METs/weekb)*

0 - 7.4

465(26.4)

595(24.0)

7.4 - 22.4

348(19.8)

633(25.5)

22.4 - 53.0

429(24.4)

633(25.5)

> 53.0

518(29.4)

620(25.0)

Family history of CRC*

No

1582(89.9)

2337(94.2)

Yes

178(10.1)

144(5.8)

Reported any colon screening procedure*

No

1500(85.2)

1861(75.0)

Yes

260(14.8)

620(25.0)

Regular use of NSAIDb*

No

1163(66.1)

1439(58.0)

Yes

597(33.9)

1042(42.0)

Education attainment*

High school graduate or less

884(50.2)

1042(42.0)

Technical school/some college/university

540(30.7)

866(34.9)

Bachelor's degree/graduate degree

336(19.1)

573(23.1)

Household income ($CAN)*

< 12,000

109(6.2)

154(6.2)

12,000-29,999

507(28.8)

573(23.1)

30,000-49,999

547(31.1)

777(31.3)

≥ 50,000

597(33.9)

977(39.4)


a All characteristic variables presented as number(%).

b BMI, body mass index; METs/week, metabolic equivalent hours per week; NSAID, nonsteroid anti-inflammatory drug.

* Significant differences between cases and controls (p ≤ 0.05)

Sun et al. Nutrition Journal 2012 11:18   doi:10.1186/1475-2891-11-18

Open Data