Table 4.
Summary description of overall diet quality index and its component and sub-component scores (expressed as percentage), age and energy intake according to frequency* of consuming meals out among British adolescents aged 11–18 years (n 2045) from the National Diet and Nutrition Survey (NDNS) rolling programme, Years 1–6 (2008–2014)
| Total sample (n 2045) | Frequent meals-out consumers (n 496) | Moderate meals-out consumers (n 957) | Low meals-out consumers (n 592) | |||||
|---|---|---|---|---|---|---|---|---|
| Mean | 95 % CI | Mean | 95 % CI | Mean | 95 % CI | Mean | 95 % CI | |
| DQI-A% | 20·4 | 19·7, 21·0 | 18·0 | 16·7, 19·4 | 21·4 | 20·4, 22·3 | 20·8 | 19·6, 22·1 |
| DQc% | −6·3 | −7·7, −5·0 | −10·2 | −12·9, −7·4 | −5·2 | −7·1, −3·3 | −4·9 | −7·5, −2·3 |
| DDc% | 44·6 | 44·0, 45·1 | 43·0 | 41·9, 44·2 | 45·5 | 44·7, 46·3 | 44·3 | 43·2, 45·3 |
| DEc% | 22·9 | 22·6, 23·3 | 21·2 | 20·4, 21·9 | 23·8 | 23·3, 24·3 | 23·0 | 22·4, 23·7 |
| DAx% | 53·6 | 53·1, 54·0 | 52·5 | 51·5, 53·5 | 54·4 | 53·8, 55·1 | 53·1 | 52·2, 54·0 |
| DEx% | 20·9 | 20·6, 21·2 | 21·8 | 21·1, 22·4 | 20·7 | 20·3, 21·2 | 20·4 | 19·8, 21·0 |
| Age (years) | 14·6 | 14·5, 14·7 | 15·2 | 15·0, 15·3 | 14·4 | 14·2, 14·5 | 14·4 | 14·2, 14·5 |
| Food energy (kJ/d) | 7358·0 | 7266·8, 7448·8 | 7503·2 | 7294·0, 7712·4 | 7355·5 | 7229·1, 7482·2 | 7239·6 | 7078·1, 7400·7 |
| Food energy (kcal/d) | 1758·6 | 1736·8, 1780·3 | 1793·3 | 1743·3, 1843·3 | 1758·0 | 1727·8, 1788·3 | 1730·3 | 1691·7, 1768·8 |
DQI-A, Diet Quality Index for Adolescents; DQc, diet quality component; DDc, diet diversity component, DEc, diet equilibrium component; DAx, diet adequacy sub-component; DEx, diet excess sub-component.
*
Low consumption defined as rarely/never; moderate consumption defined as once per month; and frequent consumption defined as once or twice per week or more.