Figures have been rounded to the nearest 1,000 cases and may not sum due to rounding.
DWP does not hold a single source of data on SMI claims to analyse. Analysis of regional SMI caseloads are based on DWP’s Quarterly Statistical Extract (QSE) data. QSE is a quarterly 5 per cent sample of Jobseeker’s Allowance (JSA), Income Support (IS) and Pension Credit (PC) claimants. Quality assured data at regional level is not available for ESA or UC claimants receiving SMI. In the absence of data, it has been assumed that the regional breakdown of ESA claimants is the same as the JSA, IS and PC caseload. It is estimated that in 2017/18 under 1% of the SMI caseload claimed UC; these cases are not included in the figures in the table above.