Quartiles of each listed food and constituent of childhood diet in the Boyd Orr survey of diet and health in pre-second world war Britain (1937 to 1939)
| Quartile of daily dietary intake | Mean (SD) | Range | |
|---|---|---|---|
| Fruit (g) | 1 (low) | 0.7 (1.4) | 0–4.7 |
| 2 | 13.0 (4.7) | 4.8–21.1 | |
| 3 | 31.9 (6.6) | 21.2–45.1 | |
| 4 (high) | 90.0 (53.4) | 45.5–556.4 | |
| Vegetables (g) | 1 (low) | 23.8 (10.4) | 0–38.8 |
| 2 | 47.7 (5.7) | 38.8–58.1 | |
| 3 | 68.9 (7.1) | 58.3–83.1 | |
| 4 (high) | 116.1 (37.6) | 83.2–481.2 | |
| Fish (g) | 1 (low) | 1.8 (2.4) | 0–6.9 |
| 2 | 11.3 (2.5) | 7.0–15.7 | |
| 3 | 21.6 (3.9) | 15.8–29.2 | |
| 4 (high) | 44.5 (15.5) | 29.2–148.9 | |
| Fat (g) | 1 (low) | 53.1 (7.2) | 30.1–63.3 |
| 2 | 70.7 (4.1) | 63.3–77.6 | |
| 3 | 86.6 (5.2) | 77.7–96.4 | |
| 4 (high) | 118.8 (20.5) | 93.5–229.0 | |
| Saturated fat (g) | 1 (low) | 19.6 (3.2) | 8.8–24.0 |
| 2 | 27.6 (2.3) | 24.0–31.4 | |
| 3 | 35.5 (2.6) | 31.4–40.4 | |
| 4 (high) | 52.0 (10.8) | 40.6–108.9 | |
| Carotene (μg) | 1 (low) | 164.8 (69.5) | 4.5–284.8 |
| 2 | 432.6 (79.4) | 285.1–575.5 | |
| 3 | 794.3 (141.0) | 576.1–1052.2 | |
| 4 (high) | 1672.4 (779.3) | 1053.4–12062.7 | |
| Vitamin C (mg) | 1 (low) | 14.9 (3.7) | 5.6–20.4 |
| 2 | 24.6 (2.4) | 20.5–29.1 | |
| 3 | 34.4 (3.2) | 29.2–40.3 | |
| 4 (high) | 58.0 (19.6) | 40.3–169.4 | |
| Vitamin E (mg) | 1 (low) | 2.1 (0.4) | 0.9–2.6 |
| 2 | 3.1 (0.3) | 2.6–3.6 | |
| 3 | 4.1 (0.4) | 3.6–4.8 | |
| 4 (high) | 6.2 (1.3) | 4.8–17.0 | |