Table 1.
Descriptive statistics of the main variables.
| Pooled | Females | Males | Diff (3)–(2) a | ||
|---|---|---|---|---|---|
| (1) | (2) | (3) | (4) | ||
| Dependent Variables | |||||
| Calories | Average daily calorie intake in three days (kcal) | 2215.50 | 2029.46 | 2412.08 | 382.62 ** |
| (685.92) | (611.22) | (705.48) | |||
| Carbohydrate | Average daily carbohydrate intake in three days (g) | 319.58 | 296.19 | 344.29 | 48.09 ** |
| (115.69) | (107.05) | (119.29) | |||
| Fat | Average daily fat intake in three days (g) | 71.11 | 65.98 | 76.52 | 10.54 ** |
| (37.15) | (33.92) | (39.57) | |||
| Protein | Average protein intake in three days (g) | 67.02 | 61.70 | 72.65 | 10.95 ** |
| (23.54) | (21.29) | (24.49) | |||
| Percentage of Carbohydrate | Percentage contribution of carbohydrate to total calorie intake | 0.59 | 0.59 | 0.59 | 0.00 |
| (0.12) | (0.12) | (0.12) | |||
| Percentage of Fat | Percentage contribution of fat to total calorie intake | 0.29 | 0.29 | 0.29 | −0.01 ** b |
| (0.11) | (0.11) | (0.11) | |||
| Percentage of Protein | Percentage contribution of protein to total calorie intake | 0.12 | 0.12 | 0.12 | −0.00 ** c |
| (0.03) | (0.03) | (0.03) | |||
| HEI | Healthy Eating Index for Chinese | 60.33 | 60.66 | 59.98 | −0.68 ** |
| (6.83) | (6.82) | (6.83) | |||
| Independent Variables | |||||
| Urbanization | Urbanization Index | 56.00 | 55.76 | 56.25 | 0.49 |
| (16.11) | (16.08) | (16.15) | |||
| Channel Variables | |||||
| Preference score | Score of healthy food consumption preference | 0.15 | 0.19 | 0.11 | −0.07 ** |
| (1.00) | (0.98) | (1.01) | |||
| Knowledge score | Score of dietary knowledge | 5.95 | 5.90 | 6.01 | 0.12 |
| (3.65) | (3.67) | (3.62) | |||
| Number of groups | 8023 | 4025 | 3998 | ||
| Observations | 17,315 | 8896 | 8419 |
Notes: The mean values are presented and standard deviations are in parentheses; ** p < 0.01. a: t-tests are applied. b: the difference in the percentage contribution of fats between males and females is 0.007. c: the difference in the percentage contribution of proteins between males and females is 0.003.