Table 4f.
Mean annualised change in the standardised rate × 1000* of cognitive decline over a median follow-up of 11·8 years, across quartiles of total and six classes of flavonoid intake: abstract reasoning cognitive domain†
| Flavonoid class | Flavonoid quartiles | P trend ‡ | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Quartile 1 | Quartile 2 | Quartile 3 | Quartile 4 | ||||||
| Mean | 95 % CI | Mean | 95 % CI | Mean | 95 % CI | Mean | 95 % CI | ||
| Total flavonoids§ | –25·2 | –34·7, –15·8 | –14·7 | –23·4, –5·9 | –10·5 | –19·3, –1·6 | –21·1 | –30·0, –12·2 | 0·97 |
| Flavanols | –26·6 | –35·9, –17·3 | –14·1 | –22·9, –5·3 | –10·8 | –19·7, –2·0 | –19·7 | –28·6, –10·8 | 0·56 |
| Flavones | –21·2 | –30·4, –12·0 | –15·1 | –23·8, –6·4 | –21·5 | –30·3, –12·6 | –13·7 | –22·7, –4·6 | 0·40 |
| Flavanones | –13·8 | –22·9, –4·8 | –16·5 | –25·3, –7·8 | –21·9 | –30·6, –13·2 | –18·7 | –27·9, –9·6 | 0·36 |
| Flavan-3-ols | –25·9 | –35·1, –16·7 | –13·9 | –22·7, –5·0 | –11·7 | –20·5, –2·9 | –19·9 | –28·8, –11·0 | 0·95 |
| Anthocyanins | –20·7 | –30·2, –11·1 | –20·0 | –28·9, –11·0 | –14·9 | –23·6, –6·1 | –16·2 | –24·8, –7·6 | 0·49 |
| Flavonoid polymers | –23·3 | –32·9, –13·8 | –16·0 | –24·8, –7·3 | –10·2 | –19·0, –1·5 | –21·9 | –30·7, –13·0 | 0·75 |
All values are mean least-squares annualised change in abstract reasoning cognitive domain score multiplied by 1000; 95 % CIs.
Of the total 2672 observations, there were 2648 complete data for abstract reasoning cognitive domain.
P-values for the test of linear trend across quartile categories were based on linear regression models with the median intake of each quartile category assigned to individuals with intake in that category, and this quartile median variable was used as a continuous measure in regression models.
Adjusted for age, sex, education, total energy intake, apo E ε4 and abstract reasoning score at the beginning of the exam interval (model 1).