Table 2 Baseline characteristics by dietary pattern quartiles (Q)
From: Prospective study of dietary patterns and colorectal cancer among Singapore Chinese
Meat – dim sum | Vegetable – fruit – soy | |||
|---|---|---|---|---|
Q1 | Q4 | Q1 | Q4 | |
Person years (No.) | 153 028 | 148 434 | 156 658 | 144 410 |
Median age (interquartile range) years | 59 (13) | 53 (11) | 57 (14) | 54 (12) |
Male (%) | 31.2 | 59.6 | 47.9 | 43.4 |
Hokkien dialect group (%) | 56.0 | 52.9 | 58.9 | 50.1 |
Highest level of education (%) | ||||
No formal education | 37.8 | 17.3 | 34.2 | 21.5 |
Primary education | 41.8 | 45.6 | 44.1 | 43.9 |
Secondary education or higher | 20.4 | 37.1 | 21.7 | 34.6 |
Body mass index, kg per m2(%) | ||||
<20.0 | 15.2 | 15.5 | 15.7 | 15.3 |
20.0–24.0 | 56.7 | 52.1 | 56.1 | 52.2 |
24.1–28.0 | 21.4 | 24.8 | 21.4 | 25.3 |
>28.0 | 6.8 | 7.6 | 6.8 | 7.3 |
Any weekly physical activity (% yes) | 29.9 | 37.6 | 26.4 | 38.7 |
Smoking index (%) | ||||
Never | 77.4 | 60.7 | 62.0 | 73.7 |
Light | 20.0 | 34.2 | 32.9 | 23.4 |
Heavy | 2.7 | 5.1 | 5.0 | 2.9 |
Alcohol consumption (%) | ||||
Nondrinkers | 90.9 | 68.9 | 81.5 | 79.4 |
<7 drinks per week | 7.1 | 22.6 | 12.6 | 16.1 |
⩾7 drinks per week | 2.0 | 8.5 | 5.9 | 4.4 |
Green tea intake (%) | ||||
None | 67.2 | 50.9 | 69.7 | 48.6 |
Monthly | 10.1 | 12.4 | 10.3 | 12.3 |
Weekly | 12.5 | 22.2 | 10.9 | 23.3 |
Daily | 10.2 | 14.4 | 9.1 | 15.9 |
Diabetes (% yes) | 10.4 | 7.7 | 9.6 | 8.4 |
Median daily intake (interquartile range) | ||||
Energy, kcal | 1165 (472) | 1947 (780) | 1211 (576) | 1800 (772) |
Saturated fat, g per 1000 kcal | 7.3 (3.2) | 10.4 (3.2) | 8.0 (3.4) | 9.7 (3.6) |
Polyunsaturated fat (PUFA), g per 1000 kcal | 4.4 (2.5) | 5.0 (1.9) | 4.1 (1.9) | 5.5 (2.7) |
Marine n-3 PUFA, g per 1000 kcal | 0.18 (0.13) | 0.18 (0.10) | 0.16 (0.12) | 0.19 (0.12) |
Total n-6 PUFA, g per 1000 kcal | 3.9 (2.4) | 4.4 (1.8) | 3.6 (1.8) | 4.8 (2.5) |
