Table 2 Dietary intake by participants
From: Soy consumption and risk of COPD and respiratory symptoms: a case-control study in Japan
Dietary intake g/day, mean (SD) | Cases (n = 278) | Controls (n = 340) | p value (t test) |
|---|---|---|---|
Fruits | 218.36 (175.68) | 270.34 (239.88) | 0.002 |
Vegetables | 185.49 (101.85) | 224.39 (140.29) | < 0.001 |
Red meat | 40.63 (35.31) | 34.55 (27.01) | 0.019 |
Chicken | 10.33 (13.73) | 12.43 (13.55) | 0.058 |
Fish | 19.54 (21.95) | 22.04 (25.72) | 0.200 |
Total soy foods* | 44.84 (28.50) | 59.98 (50.23) | < 0.001 |
Tofu | 17.66 (16.45) | 25.02 (26.24) | < 0.001 |
Natto | 11.43 (15.58) | 18.03 (33.51) | 0.001 |
Bean sprouts | 3.88 (5.02) | 4.59 (4.61) | 0.066 |
Soy milk (cups/week) | 0.19 (1.01) | 0.46 (1.74) | 0.016 |