Table 8. Nutrient intakes of different food group according to quintiles of dietary iron intake for women: NIPPON DATA90.
| Iron intake quintiles (mg/1000 kcal) | ||||||||||||
| Range | 2.0–5.1 | 5.1–5.6 | 5.6–6.2 | 6.2–6.9 | 6.9–17.5 | P diff | P trend | |||||
| Mean | SD | Mean | SD | Mean | SD | Mean | SD | Mean | SD | |||
| n | 970 | 971 | 970 | 971 | 972 | |||||||
| Cereals (g/1000 kcal) | 149.5 | 27.4 | 144.4 | 27.0 | 142.3 | 25.7 | 138.1 | 31.0 | 133.5 | 28.7 | <0.001 | <0.001 |
| Rice (g/1000 kcal) | 100.6 | 30.4 | 99.8 | 29.3 | 98.5 | 28.3 | 97.7 | 31.7 | 93.2 | 28.5 | <0.001 | 0.018 |
| Flour product (g/1000 kcal) | 46.7 | 27.9 | 42.9 | 26.2 | 42.3 | 28.0 | 39.2 | 25.3 | 38.3 | 27.1 | <0.001 | <0.001 |
| Nuts (g/1000 kcal) | 0.6 | 1.9 | 0.7 | 2.1 | 0.8 | 2.3 | 0.9 | 2.2 | 1.1 | 2.4 | <0.001 | <0.001 |
| Potatoes (g/1000 kcal) | 29.4 | 19.6 | 33.5 | 21.5 | 35.5 | 21.3 | 38.4 | 23.4 | 41.4 | 24.7 | <0.001 | <0.001 |
| Sugar & sweetener (g/1000 kcal) | 5.9 | 4.2 | 6.3 | 5.0 | 6.4 | 4.8 | 6.2 | 3.9 | 6.6 | 4.5 | 0.005 | 0.128 |
| Sweet & snacks (g/1000 kcal) | 13.4 | 13.9 | 12.5 | 13.2 | 11.6 | 12.7 | 11.0 | 14.0 | 9.8 | 13.5 | <0.001 | <0.001 |
| Fats & Oils (g/1000 kcal) | 9.7 | 5.1 | 8.9 | 4.3 | 8.5 | 4.2 | 8.1 | 4.1 | 7.4 | 4.0 | <0.001 | <0.001 |
| Soy beans and product (g/1000 kcal) | 25.9 | 14.5 | 34.7 | 18.0 | 39.7 | 19.7 | 44.6 | 22.1 | 53.3 | 28.6 | <0.001 | <0.001 |
| Fruit (g/1000 kcal) | 72.2 | 52.5 | 78.5 | 56.1 | 82.3 | 56.2 | 86.7 | 57.0 | 92.8 | 62.4 | <0.001 | <0.001 |
| Green & yellow vegetable (g/1000 kcal) | 28.9 | 16.8 | 38.3 | 20.7 | 45.1 | 21.9 | 54.0 | 26.0 | 70.2 | 35.2 | <0.001 | <0.001 |
| Other vegetable (g/1000 kcal) | 77.7 | 32.7 | 87.8 | 33.5 | 97.2 | 36.9 | 99.9 | 39.8 | 108.3 | 43.2 | <0.001 | <0.001 |
| Mushrooms (g/1000 kcal) | 4.5 | 6.3 | 5.4 | 6.2 | 6.5 | 7.0 | 6.5 | 6.8 | 8.1 | 9.6 | <0.001 | <0.001 |
| Sea algae (g/1000 kcal) | 2.3 | 2.7 | 3.1 | 3.7 | 3.5 | 3.8 | 4.4 | 4.8 | 6.4 | 7.5 | <0.001 | <0.001 |
| Condiment & beverage (g/1000 kcal) | 52.6 | 50.7 | 46.9 | 39.2 | 43.1 | 38.5 | 41.9 | 37.0 | 39.3 | 33.4 | <0.001 | <0.001 |
| Fish & shellfish (g/1000 kcal) | 42.8 | 19.5 | 50.2 | 21.4 | 52.7 | 22.2 | 57.3 | 23.5 | 61.5 | 25.0 | <0.001 | <0.001 |
| Meat (g/1000 kcal) | 28.8 | 15.3 | 29.0 | 15.1 | 29.4 | 15.0 | 29.4 | 15.5 | 29.8 | 17.5 | 0.599 | 0.332 |
| Egg (g/1000 kcal) | 18.8 | 9.4 | 20.7 | 10.4 | 21.3 | 10.3 | 22.1 | 10.4 | 22.5 | 11.4 | <0.001 | <0.001 |
| Milk & dairy (g/1000 kcal) | 58.5 | 43.9 | 57.9 | 45.5 | 58.5 | 44.0 | 60.2 | 45.5 | 62.2 | 50.0 | 0.237 | 0.404 |
| Other food (g/1000 kcal) | 2.6 | 3.9 | 2.2 | 3.6 | 2.1 | 3.7 | 2.2 | 3.8 | 1.7 | 3.4 | <0.001 | 0.009 |
P diff values obtained by ANOVA or Chi square statistics. P trend obtained by contrast statement of analysis of variance.