Table 2.
Characteristics of Chinese children and adolescents according to quartiles (Q) of the three dietary patterns in China (Mean values and standard deviations, and percentages)
| Quartile of dietary pattern score
|
|||||
|---|---|---|---|---|---|
| Q1 | Q2 | Q3 | Q4 | P for trend* | |
| n | 320 | 321 | 321 | 320 | |
| Modern | |||||
| Age (years) | <0·0001 | ||||
| Mean | 10·9 | 11·0 | 11·2 | 12·0 | |
| SD | 2·8 | 2·9 | 3·0 | 3·0 | |
| Female (%) | 58·1 | 49·8 | 43·3 | 47·5 | 0·005 |
| Urban (%) | 9·7 | 28·7 | 37·1 | 47·2 | <0·0001 |
| Overweight (%) | 5·6 | 9·3 | 13·1 | 14·1 | 0·0002 |
| Obesity (%) | 4·4 | 8·1 | 8·7 | 12·2 | 0·0005 |
| Traditional north | |||||
| Age (years) | 0·9781 | ||||
| Mean | 11·4 | 11·1 | 11·3 | 11·3 | |
| SD | 3·0 | 3·0 | 2·9 | 2·9 | |
| Female (%) | 47·8 | 54·5 | 51·4 | 45·0 | 0·3552 |
| Urban (%) | 29·7 | 30·8 | 31·1 | 30·9 | 0·7246 |
| Overweight (%) | 9·1 | 8·1 | 12·5 | 12·5 | 0·0558 |
| Obesity (%) | 5·6 | 9·0 | 6·5 | 12·2 | 0·0130 |
| Traditional south | |||||
| Age (years) | <0·0001 | ||||
| Mean | 10·5 | 11·1 | 11·4 | 12·0 | |
| SD | 3·0 | 2·8 | 2·9 | 2·8 | |
| Female (%) | 52·8 | 55·1 | 48·6 | 42·2 | 0·0021 |
| Urban (%) | 32·8 | 30·2 | 26·5 | 33·1 | 0·8073 |
| Overweight (%) | 12·5 | 7·5 | 9·3 | 12·8 | 0·7141 |
| Obesity (%) | 8·1 | 9·3 | 7·2 | 8·8 | 0·9640 |
*
P for trend was calculated from a linear regression analysis for continuous variables and Mantel-Haenszel χ 2 for categorical variables.