Performance of the 28 individual marker items in the 1996/2 and 2001/3 diets. The diagonal line is the point of equality; points below the line represent items for which performance is worse in 2001/3 than in 1996/2. Solid points are statistically significant (p < .05), and open points are non-significant. Code numbers of items are those shown in table 1.
McManus et al. BMC Medicine 2005 3:13 doi:10.1186/1741-7015-3-13