Estimates of current CTCA provision, provision required for full implementation of updated NICE guidelines, and increases in provision required across the UK as a whole and each devolved nation
| Geographical location | Population (100 000) | Current provision | Provision required | Increase required | |
| CTCAs per 100 000 population per year | CTCAs per 100 000 population per year | CTCAs per 100 000 population per year | Multiple of current provision | ||
| UK | 641.8 | 66 (n=42 340) | 545 (n=350 000) | 479 (n=307 660) | 8.3 |
| England | 541.0 | 70 (n=37 740) | 545 (n=295 030) | 475 (n=257 290) | 7.8 |
| Scotland | 52.5 | 42 (n=2199) | 545 (n=28 630) | 503 (n=26 341) | 13.0 |
| Wales | 29.8 | 28 (n=820) | 545 (n=16 251) | 517 (n=15 431) | 19.5 |
| Northern Ireland | 18.5 | 86 (n=1580) | 545 (n=10 089) | 459 (n=8509) | 6.3 |
CTCA, CT coronary angiography; NICE, National Institute for Health and Care Excellence.