Table 2.
The nutrients intake according to television (TV) viewing time
| Boys | Girls | |||||
|---|---|---|---|---|---|---|
| < 2 h (N = 390) | > 2 h (N = 274) | p † | < 2 h (N = 387) | > 2 h (N = 295) | p † | |
| Age (average (CI)) | 10.64 (10.37–10.90) | 10.86 (5.90–15.82) | < 0.001 | 10.42 (10.13–10.71) | 11.06 (10.80–11.31) | < 0.001 |
| BMI categories (N (%)) | ||||||
| Underweight | 27 (6.9%) | 11 (4.0%) | 0.008 | 33 (8.5%) | 22 (7.4%) | 0.113 |
| Normal weight | 289 (74.1%) | 186 (67.6%) | 311 (80.2%) | 225 (75.8%) | ||
| Overweight | 74 (19.0%) | 77 (28.4%) | 43 (11.3%) | 48 (16.8%) | ||
| Physical activity (N (%)) | ||||||
| < 1 h | 190 (48.7%) | 131 (47.8%) | 0.085 | 256 (66.1%) | 168 (56.9%) | 0.049 |
| 1–3 h | 158 (40.5%) | 126 (46.0%) | 112 (28.9%) | 109 (36.9%) | ||
| > 3 h | 42 (10.8%) | 17 (6.2%) | 19 (4.9%) | 18 (6.1%) | ||
| Nutrition (average (CI)††) | ||||||
| Protein (%E) | 14.20 (13.86–14.55) | 13.69 (13.30–14.09) | 0.005 | 14.20 (13.82–14.58) | 13.81 (13.43–14.20) | 0.027 |
| Fat (%E) | 27.71 (26.91–28.52) | 27.46 (26.55–28.38) | 0.550 | 28.70 (27.83–29.56) | 29.07 (28.18–29.95) | 0.358 |
| Carbohydrate (%E) | 56.51 (55.50–57.51) | 57.27 (56.13–58.41) | 0.146 | 55.67 (54.60–56.73) | 55.75 (54.66–56.84) | 0.868 |
| Saturated fatty acids (%E) | 9.06 (8.73–9.40) | 9.05 (8.67–9.43) | 0.940 | 9.48 (9.11–9.85) | 9.38 (9.00–9.76) | 0.564 |
| n-3 fatty acids (%E) | 1.04 (1.00–1.09) | 1.01 (0.96–1.06) | 0.206 | 1.08 (1.03–1.13) | 1.10 (1.05–1.15) | 0.328 |
| n-6 fatty acids (%E) | 4.89 (4.72–5.05) | 4.79 (4.61–4.98) | 0.265 | 5.05 (4.87–5.23) | 5.23 (5.05–5.42) | 0.028 |
| Sodium (mg/1000 kcal) | 2249.64 (2174.33–2324.95) | 2199.62 (2114.20–2285.04) | 0.203 | 2379.62 (2294.17–2465.08) | 2307.88 (2220.69–2395.07) | 0.071 |
| Potassium (mg/1000 kcal) | 1218.28 (1176.04–1260.53) | 1177.53 (1129.61–1225.44) | 0.064 | 1238.57 (1194.36–1282.78) | 1208.09 (1162.99–1253.20) | 0.137 |
| Calcium (mg/1000 kcal) | 363.39 (346.14–380.65) | 338.28 (318.71–357.85) | 0.005 | 375.46 (359.21–391.72) | 341.20 (324.61–357.78) | < 0.001 |
| Iron (mg/1000 kcal) | 3.65 (3.54–3.76) | 3.53 (3.41–3.66) | 0.034 | 3.79 (3.66–3.91) | 3.73 (3.60–3.86) | 0.307 |
| Vitamin D (μg/1000 kcal) | 5.18 (4.74–5.61) | 4.94 (4.44–5.43) | 0.286 | 5.41 (4.94–5.89) | 5.03 (4.54–5.51) | 0.079 |
| Vitamin K (μg/1000 kcal) | 118.66 (110.67–126.64) | 108.78 (99.72–117.83) | 0.018 | 117.10 (107.79–126.41) | 114.01 (104.51–123.50) | 0.473 |
| Vitamin B-1 (mg/1000 kcal) | 0.41 (0.40–0.42) | 0.40 (0.39–0.41) | 0.123 | 0.41 (0.39–0.42) | 0.40 (0.39–0.41) | 0.285 |
| Vitamin B-2 (mg/1000 kcal) | 0.73 (0.70–0.75) | 0.70 (0.67–0.73) | 0.050 | 0.74 (0.71–0.76) | 0.71 (0.68–0.74) | 0.032 |
| Folic acid (μg/1000 kcal) | 149.39 (142.58–156.20) | 143.56 (135.83–151.28) | 0.101 | 153.11 (145.69–160.52) | 152.00 (144.44–159.57) | 0.749 |
| Vitamin C (mg/1000 kcal) | 52.52 (49.12–55.92) | 51.90 (48.04–55.76) | 0.725 | 54.68 (50.95–58.42) | 56.32 (52.50–60.13) | 0.346 |
| Cholesterol (mg/1000 kcal) | 168.10 (159.83–176.37) | 161.09 (151.71–170.47) | 0.104 | 175.68 (165.70–185.65) | 177.43 (167.25–187.61) | 0.705 |
| Total dietary fiber (g/1000 kcal) | 5.64 (5.44–5.84) | 5.46 (5.24–5.69) | 0.082 | 5.72 (5.50–5.95) | 5.65 (5.43–5.88) | 0.499 |
†χ2 tests for categorical variables and analysis of covariances for continuous variables, adjusting for age, BMI, and physical activity
††Adjusted mean and standard errors calculated by ANCOVA