Table 2.
Baseline characteristics by quintile of factor scores for men and for women (all values are totals, percents, or means).
| Factor 1 | Factor 2 | Factor 3 | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Fruits and Vegetables | Fat-reduced/diet foods | Meat and Potatoes | |||||||
| Men (N = 293,615) | Q1 | Q3 | Q5 | Q1 | Q3 | Q5 | Q1 | Q3 | Q5 |
| Colorectal cancer cases | 499 | 422 | 395 | 474 | 431 | 393 | 361 | 443 | 453 |
| Person years (mean) | 4.44 | 4.46 | 4.45b | 4.44 | 4.46 | 4.44 | 4.46 | 4.45 | 4.43d |
| Age at entry (years) | 61.4 | 62.2 | 62.9d | 62.0 | 62.0 | 62.7d | 62.3 | 62.0 | 62.4 |
| BMI (kg/m2) | 27.7 | 27.4 | 26.7d | 27.1 | 27.4 | 27.1b | 26.5 | 27.4 | 27.8d |
| Energy (kcals/day) | 2157 | 2072 | 1724d | 2114 | 2060 | 1744d | 1728 | 2086 | 2122d |
| Physical Activity (>20 min)e | |||||||||
| Never or rarely | 22.7 | 13.8 | 9.7 | 19.9 | 14.2 | 11.3 | 12.3 | 15.2 | 17.3 |
| 1–3 times/month | 16.4 | 13.1 | 9.4 | 15.4 | 13.0 | 10.3 | 11.2 | 13.5 | 14.0 |
|
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| 1–2 times/week | 22.0 | 23.0 | 19.0 | 22.5 | 22.4 | 20.0 | 18.3 | 22.7 | 24.1 |
| 3–4 times/week | 22.1 | 28.8 | 32.0 | 23.2 | 28.3 | 32.4 | 30.6 | 27.5 | 26.0 |
| 5 or more times/week | 15.9 | 20.5 | 28.9 | 17.8 | 21.2 | 25.3 | 26.8 | 20.3 | 17.5 |
| Unknown | 1.0 | 0.9 | 1.1 | 1.3 | 0.8 | 0.7 | 0.9 | 0.8 | 1.2 |
| Education (%)e | |||||||||
| <12 years | 8.9 | 5.3 | 4.1 | 7.5 | 5.4 | 4.8 | 4.6 | 5.8 | 7.5 |
| 12 years or HS grad | 22.4 | 14.8 | 10.6 | 17.3 | 15.1 | 14.7 | 12.5 | 15.7 | 18.4 |
| Some college | 34.7 | 31.7 | 27.3 | 33.0 | 31.2 | 30.6 | 27.8 | 31.6 | 34.1 |
| College grad | 31.0 | 45.7 | 55.2 | 39.2 | 45.7 | 47.6 | 52.7 | 44.4 | 36.7 |
| Unknown | 2.9 | 2.5 | 2.8 | 3.1 | 2.6 | 2.4 | 2.4 | 2.5 | 3.4 |
| Ethnicity (%)e | |||||||||
| Non-Hispanic white | 93.8 | 93.3 | 89.6 | 88.4 | 93.1 | 95.8 | 92.5 | 93.0 | 91.0 |
| Non-Hispanic black | 3.1 | 2.5 | 2.5 | 3.8 | 2.6 | 1.6 | 2.15 | 2.35 | 4.15 |
|
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| Other ethnicity | 1.9 | 3.1 | 6.5 | 6.1 | 3.2 | 1.8 | 4.2 | 3.6 | 3.4 |
| Unknown | 1.2 | 1.1 | 1.5 | 1.7 | 1.1 | 0.9 | 1.2 | 1.1 | 1.6 |
| Smoking (%)e | |||||||||
| Never smoker | 23.7 | 29.7 | 35.2 | 24.6 | 31.2 | 31.7 | 30.4 | 29.5 | 29.8 |
| Former smoker, < 20 cigs/day | 25.1 | 28.9 | 31.2 | 25.5 | 29.5 | 30.4 | 31.1 | 28.4 | 26.8 |
| Former smoker, ≥ 20 cigs/day | 29.1 | 28.7 | 25.5 | 26.0 | 27.4 | 29.9 | 28.4 | 27.9 | 26.3 |
| Current smoker, < 20 cigs/day | 9.4 | 5.6 | 3.0 | 10.3 | 5.1 | 3.2 | 4.1 | 6.1 | 7.5 |
| Current smoker, ≥ 20 cigs/day | 9.0 | 3.7 | 1.2 | 9.6 | 3.3 | 1.5 | 2.4 | 4.7 | 5.6 |
| Unknown | 3.7 | 3.4 | 3.8 | 4.0 | 3.5 | 3.3 | 3.6 | 3.3 | 3.9 |
| Alcohol (g/day) | 27.6 | 15.3 | 8.9d | 20.7 | 17.1 | 7.7d | 26.2 | 16.2 | 7.6d |
| Factor 1 | Factor 2 | Factor 3 | |||||||
| Fruits and Vegetables | Meat and Potatoes | Fat-reduced/diet foods | |||||||
|
| |||||||||
| Women (N = 198,767) | Q1 | Q3 | Q5 | Q1 | Q3 | Q5 | Q1 | Q3 | Q5 |
|
| |||||||||
| Colorectal cancer cases | 196 | 194 | 203 | 155 | 176 | 239 | 218 | 162 | 178 |
| Person years (mean) | 4.48 | 4.49 | 4.49a | 4.50 | 4.49 | 4.48d | 4.48 | 4.49 | 4.49b |
| Age at entry (years) | 61.4 | 61.8 | 62.3d | 62.1 | 61.8 | 61.7d | 61.9 | 61.7 | 62.1d |
| BMI (kg/m2) | 27.4 | 26.9 | 26.1d | 25.4 | 26.9 | 28.1d | 26.4 | 27.0 | 27.0d |
| Energy (kcals/day) | 1556 | 1630 | 1429d | 1266 | 1605 | 1789d | 1636 | 1591 | 1432d |
| Physical Activity (>20 min)e | |||||||||
| Never or rarely | 33.0 | 20.8 | 14.0 | 16.2 | 22.1 | 29.2 | 29.1 | 21.2 | 17.8 |
| 1–3 times/month | 17.0 | 14.9 | 10.4 | 12.0 | 14.6 | 15.5 | 15.7 | 14.5 | 12.6 |
| 1–2 times/week | 19.7 | 22.9 | 19.3 | 19.2 | 21.5 | 21.5 | 19.5 | 21.6 | 20.8 |
| 3–4 times/week | 18.4 | 25.3 | 30.5 | 29.6 | 24.6 | 20.4 | 20.0 | 22.5 | 29.0 |
|
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| 5 or more times/week | 10.7 | 15.1 | 24.2 | 22.0 | 16.0 | 11.6 | 13.7 | 16.1 | 18.7 |
| Unknown | 1.3 | 1.2 | 1.7 | 1.1 | 1.2 | 1.9 | 2.0 | 1.1 | 1.0 |
| Education (%)e | |||||||||
| <12 years | 8.3 | 5.8 | 4.9 | 4.1 | 5.8 | 9.7 | 8.9 | 5.6 | 4.7 |
| 12 years or HS grad | 32.3 | 24.6 | 19.8 | 20.8 | 25.1 | 30.6 | 27.3 | 24.5 | 24.6 |
| Some college | 34.5 | 36.1 | 34.8 | 36.3 | 36.2 | 34.4 | 34.9 | 35.7 | 35.6 |
| College grad | 22.0 | 30.4 | 36.5 | 37.9 | 29.8 | 21.0 | 24.5 | 31.1 | 32.3 |
| Unknown | 2.9 | 3.1 | 4.0 | 2.8 | 3.1 | 4.4 | 4.3 | 3.2 | 2.8 |
| Ethnicity (%)e | |||||||||
| Non-Hispanic white | 92.9 | 90.0 | 84.8 | 92.4 | 90.0 | 85.0 | 82.5 | 90.5 | 93.4 |
| Non-Hispanic black | 4.2 | 5.7 | 6.7 | 3.4 | 5.0 | 9.1 | 9.7 | 4.9 | 3.0 |
| Other ethnicity | 1.7 | 3.0 | 6.3 | 2.9 | 3.5 | 3.8 | 5.5 | 3.2 | 2.0 |
| Unknown | 1.3 | 1.3 | 2.2 | 1.4 | 1.4 | 2.1 | 2.4 | 1.5 | 1.1 |
|
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| Smoking (%)e | |||||||||
| Never smoker | 40.3 | 44.8 | 47.7 | 43.4 | 44.3 | 46.0 | 40.0 | 46.2 | 44.7 |
| Former smoker, < 20 cigs/day | 22.6 | 27.1 | 28.9 | 31.4 | 26.3 | 21.7 | 22.2 | 27.1 | 29.3 |
| Former smoker, ≥ 20 cigs/day | 12.4 | 11.8 | 11.4 | 13.3 | 12.1 | 9.9 | 9.6 | 11.9 | 14.2 |
| Current smoker, < 20 cigs/day | 14.4 | 10.1 | 6.8 | 6.9 | 10.3 | 13.5 | 17.0 | 9.0 | 7.0 |
| Current smoker, ≥ 20 cigs/day | 7.5 | 3.4 | 1.5 | 1.9 | 4.0 | 5.6 | 7.7 | 3.0 | 1.8 |
| Unknown | 2.9 | 3.0 | 3.8 | 3.2 | 3.1 | 3.4 | 3.5 | 3.0 | 2.9 |
| Alcohol (g/day) | 7.2 | 6.1 | 3.8d | 6.4 | 6.4 | 3.8d | 7.7 | 5.9 | 3.7d |
| Menopausal hormone use (%)e | |||||||||
| Never used | 49.1 | 45.3 | 46.9 | 42.5 | 46.5 | 51.7 | 53.9 | 44.8 | 42.5 |
| Current user | 41.9 | 45.6 | 43.7 | 48.9 | 44.3 | 39.1 | 36.8 | 46.2 | 48.4 |
| Former user | 8.8 | 8.9 | 9.1 | 8.7 | 8.9 | 9.0 | 9.0 | 8.8 | 9.0 |
|
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| Unknown | 0.3 | 0.2 | 0.3 | 0.3 | 0.3 | 0.3 | 0.4 | 0.3 | 0.2 |
|
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a
p for linear trend < 0.05
b
p for linear trend < 0.01
c
p for linear trend < 0.001
d
p for linear trend <0.0001
e
Chi square test of independence of factor quintile against level of categorical variable < 0.0001 for all categorical variables for each of the three factors.