Health Deprivation and Disability Score and Rank from Indices of Multiple Deprivation 2007, by SOA. Low ranks denote greater levels of relative deprivation where 1 = most deprived SOA and 32,482 = least deprived SOA nationally. The ranks are colour coded to show the top 10% (red), 10-20% (orange), 20-30% (yellow) most deprived SOAs nationally.