Table 1 Characteristics of colorectal cancer patients and control subjects
Cases | Controls | ||
|---|---|---|---|
(n= 680) | (n= 590) | ||
Males/Females (%)* | 57.2/48.2 | 53.6/46.4 | |
Age | Average | 61.1 yrs | 56.0 yrs |
Lower Quartile | 55 yrs | 47 yrs | |
Upper quartile | 69 yrs | 66 yrs | |
Rectal cancer (%) | 38.4 | ||
Colon cancer (%) | 61.7 | ||
Smoking* | Non smokers (%) | 53.6 | 52.8 |
Ex-smokers (%) | 32.3 | 26.4 | |
Smokers (%) | 14.1 | 20.9 | |
Alcohol consumption* | no (%) | 47.3 | 40.2 |
yes (%) | 52.7 | 59.8 | |
Mean g of alcohol/day* | 23.1 | 22.9 | |
Living Place* | City (%) | 57.2 | 56.2 |
Suburbs (%) | 15.5 | 21.2 | |
Country (%) | 27.3 | 22.7 | |
Education* | Basic (%) | 33.5 | 25.4 |
High School (%) | 51.6 | 54.8 | |
University (%) | 14.9 | 19.8 | |
Mean BMI (Kg/m 2 ) ± SD* | 26.7 ± 4.3 | 26.7 ± 4.5 | |
Distribution of the populations according to BMI:* | < 18.5 Kg/m 2 (%) | 1.56 | 0.73 |
18.5-24.9 Kg/m 2 (%) | 37.0 | 37.9 | |
25-29.9 Kg/m 2 (%) | 42.5 | 41.5 | |
30-34.9 Kg/m 2 (%) | 15.1 | 15.3 | |
≥ 35 Kg/m 2 (%) | 3.80 | 4.61 |