Fig. 1
From: Increased habitual flavonoid intake predicts attenuation of cognitive ageing in twins
A 10-year change in age-related cognitive score by tertiles of a 10-year change in flavonoid subclass intake. Values are adjusted means (95% CI), n = 224. Means were adjusted for a 10-year change in age (years), BMI (kg/m2), current smoking (yes or no), physical activity (active, moderately active, inactive), post-menopausal status (yes or no), vitamin supplement use (yes or no) and intakes of energy (kcal/d), alcohol (g/d) and fat (g/d), occupation (professional, intermediate, skilled non-manual, skilled manual, partly skilled or unskilled), highest education level (no qualifications; O-Level, GCSE, NVQ2/SVQ2 or Scottish Intermediate; Scottish Higher, NVQ3, city and guilds, Pitman, A Level, Scottish Advanced Higher, or higher vocational training; university degree, postgraduate degree, NVQ5 or SVQ5), verbal IQ score (NART score) and the presence of learning disabilities, depression or neurological conditions (yes or no). *P-trend <0.05, calculated using ANCOVA. A positive change in cognitive score translates as an improvement over 10 years and a negative score is a decline