Table 1 Characteristics of case and control groups
From: Dietary patterns and colorectal cancer: results from a Canadian population-based study
Variables | Cases (n = 506) n (%) | Controls (n = 673) n (%) | p-value |
|---|---|---|---|
Gender | |||
Male | 306 (60.47%) | 400 (59.44%) | |
Female | 200 (39.53%) | 273 (40.56%) | |
Level of education | <0.0001 | ||
Less than 11 years | 246 (48.71%) | 210 (31.44%) | |
High school graduate | 75 (14.85%) | 103 (15.42%) | |
Vocational or technical school/college | 141 (27.92%) | 247 (36.98%) | |
Bachelor/graduate degree | 43 (8.51%) | 108 (16.17%) | |
Marital status | |||
Single/never married | 30 (5.93%) | 22 (3.27%) | |
Separated, divorced or widowed | 80 (15.81%) | 100 (14.86%) | |
Currently married or living as married | 396 (78.26%) | 548 (81.43%) | |
Household income (per year) | <0.0001 | ||
Less than $12,000 | 40 (8.59%) | 43 (7.20%) | |
$12,000-$19,999 | 181 (40.49%) | 185 (30.99%) | |
$30,000-$49,000 | 132 (29.53%) | 163 (27.30%) | |
More than $50,000 | 94 (21.03%) | 206 (34.51%) | |
Body mass index (kg/m 2 ) | 0.004 | ||
15-18.5 | 7 (1.42%) | 2 (0.30%) | |
18.5-25 | 135 (27.38%) | 205 (31.20%) | |
25-30 | 206 (41.78%) | 306 (46.58%) | |
More than 30 | 145 (29.41%) | 144 (21.96%) | |
Physical activity (hours/week) | 0.037 | ||
0-7.4 | 140 (27.72%) | 166 (25.08%) | |
7.4-22.4 | 90 (17.82%) | 148 (22.36%) | |
22.4-53.0 | 96 (19.01%) | 151 (22.81%) | |
More than 53.0 | 179 (35.45%) | 197 (29.76%) | |
Family history of colorectal cancer | 54 (10.67%) | 55 (8.18%) | |
Polyp | 240 (48.29%) | 85 (12.98%) | <0.0001 |
Diabetes | 107 (21.15%) | 89 (13.40%) | 0.0004 |
High cholesterol/triglycerides | 169 (33.47%) | 258 (38.39%) | |
Crohns disease or colitis | 12 (2.42%) | 13 (2.00%) | |
Any colon screening procedure | 65 (12.85%) | 145 (21.55%) | 0.0001 |
Smoking status | 367 (72.53%) | 422 (62.70%) | 0.0004 |
Alcohol use | 301 (59.49%) | 379 (56.32%) | |
Multivitamin use | 101 (20.08%) | 146 (21.82%) | |
Non-steroidal anti-inflammatory drug use | 167 (33.07%) | 260 (38.75%) | 0.045 |