Age-adjusted cumulative rates of surgical cases per 1,000,000 population, by region
| Region | Cumulative rate (95% CI) |
| East of England | 7.6 (5.50–10.24) |
| East Midlands | 6.9 (4.65–9.84) |
| North East | 4.9 (2.58–8.30) |
| London | 4.5 (2.98–6.54) |
| Yorkshire and Humber | 3.9 (2.41–6.10) |
| Scotland | 3.4 (2.03–5.41) |
| Wales | 4.1 (2.11–7.20) |
| West Midlands | 4.3 (2.73–6.46) |
| North West | 3.8 (2.48–5.57) |
| South West | 3.3 (1.98–5.30) |
| South East | 3.6 (2.38–5.11) |
| Northern Ireland | 1.2 (0.13–4.34) |
CI: confidence interval.