| Insufficient consumption of fruit and vegetable | | | | | |
| Total | 28.7 (0.2) | 31.5 (0.1) | 31.8 (0.1) | 33.9 (0.2) | 5.2 (4.7–5.8) |
| ≥College | 25.0 (0.3) | 27.8 (0.2) | 27.9 (0.2) | 29.9 (0.2) | 4.9 (4.2–5.6) |
| High school | 31.9 (0.2) | 34.7 (0.2) | 35.3 (0.2) | 37.6 (0.3) | 5.7 (5.0–6.4) |
| ≤Middle school | 34.4 (0.6) | 38.2 (0.5) | 37.2 (0.8) | 38.2 (1.3) | 3.8 (0.9–6.6) |
| Difference, % (95% CI) | | | | | |
| High school to college | 7.0 (6.3–7.6) | 6.9 (6.4–7.3) | 7.4 (6.9–7.9) | 7.7 (7.1–8.4) | |
| Middle school to college | 9.5 (8.1–10.8) | 10.3 (9.2–11.4) | 9.3 (7.7–10.8) | 8.4 (5.8–11.0) | |
| Insufficient consumption of milk | | | | | |
| Total | 55.8 (0.4) | 55.3 (0.3) | 58.1 (0.3) | 61.4 (0.3) | 5.6 (4.6–6.5) |
| ≥College | 53.4 (0.4) | 52.8 (0.3) | 56.0 (0.3) | 60.0 (0.3) | 6.7 (5.6–7.7) |
| High school | 57.8 (0.4) | 57.4 (0.3) | 59.9 (0.3) | 62.5 (0.4) | 4.7 (3.6–5.9) |
| ≤Middle school | 59.7 (0.7) | 58.9 (0.6) | 60.4 (0.8) | 62.2 (1.4) | 2.5 (-0.5–5.5) |
| Difference, % (95% CI) | | | | | |
| High school to college | 4.5 (3.7–5.2) | 4.6 (4.0–5.1) | 3.8 (3.3–4.4) | 2.5 (1.7–3.3)‡ | |
| Middle school to college | 6.3 (4.9–7.7) | 6.0 (4.9–7.2) | 4.4 (2.9–5.9) | 2.1 (-0.5–4.8)† | |
| Breakfast skipping | | | | | |
| Total | 23.6 (0.2) | 23.3 (0.1) | 27.0 (0.1) | 32.5 (0.2) | 8.9 (8.4–9.4) |
| ≥College | 20.5 (0.3) | 20.3 (0.2) | 23.6 (0.2) | 28.7 (0.2) | 8.2 (7.6–8.8) |
| High school | 26.1 (0.3) | 25.9 (0.2) | 29.9 (0.2) | 35.8 (0.3) | 9.8 (9.0–10.5) |
| ≤Middle school | 32.0 (0.6) | 29.0 (0.5) | 32.4 (0.7) | 39.3 (1.1) | 7.3 (4.9–9.8) |
| Difference, % (95% CI) | | | | | |
| High school to college | 5.6 (4.9–6.2) | 5.6 (5.2–6.0) | 6.3 (5.8–6.7) | 7.2 (6.6–7.7)‡ | |
| Middle school to college | 11.5 (10.2–12.8) | 8.7 (7.6–9.7)† | 8.8 (7.4–10.2)† | 10.6 (8.6–12.7) | |
| Frequent consumption of fast food | | | | | |
| Total | 11.4 (0.1) | 11.5 (0.1) | 15.1 (0.1) | 21.6 (0.1) | 10.2 (9.8–10.6) |
| ≥College | 11.7 (0.2) | 11.4 (0.1) | 15.2 (0.1) | 21.3 (0.2) | 9.6 (9.1–10.1) |
| High school | 11.0 (0.2) | 11.6 (0.1) | 15.1 (0.1) | 21.9 (0.2) | 10.9 (10.4–11.4) |
| ≤Middle school | 12.6 (0.5) | 12.4 (0.4) | 15.1 (0.5) | 21.4 (0.9) | 8.8 (6.8–10.7) |
| Difference, % (95% CI) | | | | | |
| High school to college | -0.7 (-1.1–-0.2) | 0.1 (-0.2–0.4)† | -0.1 (-0.5–0.3) | 0.6 (0.1–1.1)‡ | |
| Middle school to college | 0.9 (0.0–1.9) | 1.0 (0.2–1.7) | -0.1 (-1.2–1.0) | 0.1 (-1.7–1.9) | |
| Frequent consumption of carbonated soft drinks | | | | | |
| Total | 22.6 (0.2) | 23.1 (0.1) | 26.1 (0.1) | 34.3 (0.2) | 11.7 (11.2–12.2) |
| ≥College | 21.9 (0.3) | 22.1 (0.2) | 25.1 (0.2) | 32.3 (0.2) | 10.4 (9.7–11.0) |
| High school | 23.0 (0.2) | 23.9 (0.2) | 27.1 (0.2) | 36.1 (0.2) | 13.1 (12.5–13.8) |
| ≤Middle school | 25.6 (0.6) | 26.6 (0.5) | 27.9 (0.7) | 36.2 (1.0) | 10.6 (8.4–12.9) |
| Difference, % (95% CI) | | | | | |
| High school to college | 1.1 (0.5–1.6) | 1.8 (1.4–2.2) | 2.0 (1.6–2.5)* | 3.8 (3.3–4.4)‡ | |
| Middle school to college | 3.6 (2.5–4.8) | 4.5 (3.5–5.5) | 2.8 (1.5–4.2) | 3.9 (1.9–5.9) | |
| Frequent consumption of instant noodle/cup noodle | | | | | |
| Total | 22.9 (0.2) | 21.1 (0.1) | 21.8 (0.2) | 25.5 (0.2) | 2.7 (2.1–3.3) |
| ≥College | 21.0 (0.2) | 19.0 (0.2) | 20.2 (0.2) | 24.1 (0.3) | 3.1 (2.4–3.8) |
| High school | 24.4 (0.2) | 23.0 (0.2) | 23.2 (0.2) | 26.9 (0.4) | 2.5 (1.7–3.4) |
| ≤Middle school | 28.0 (0.6) | 26.0 (0.5) | 25.8 (0.8) | 27.3 (1.3) | -0.7 (-3.4–2.0) |
| Difference, % (95% CI) | | | | | |
| High school to college | 3.4 (2.8–4.0) | 3.6 (3.2–4.0) | 3.0 (2.5–3.5) | 2.8 (2.0–3.6) | |
| Middle school to college | 7.0 (5.8–8.3) | 6.7 (5.8–7.7) | 5.6 (4.1–7.1) | 3.3 (0.7–5.8)† | |