Median street network distance (metres) to the nearest active automated external defibrillator
| Number of postcodes | Median (IQR), m | Range, m | |
| Great Britain | |||
| Any | 1 671 943 | 726.1 (410.8–1221.0) | 2.7–49 080.8 |
| 24/7 | 1 671 907 | 964.0 (524.7–1667.5) | 4.2–49 206.4 |
| Restricted | 1 671 076 | 1224.4 (685.2–2294.6) | 2.7–68 064.3 |
| England | |||
| Any | 1 420 180 | 738.8 (422.6–1223.5) | 2.7–19 439.9 |
| 24/7 | 1 420 160 | 990.8 (544.9–1683.3) | 4.2–19 439.9 |
| Restricted | 1 420 149 | 1230.4 (693.8–2267.6) | 2.7–45 141.0 |
| Scotland | |||
| Any | 160 285 | 742.7 (407.2–1340.7) | 4.5–49 080.8 |
| 24/7 | 160 274 | 994.1 (538.5–1832.3) | 4.5–49 206.4 |
| Restricted | 159 459 | 1194.8 (646.0–2449.1) | 5.5–68 064.3 |
| Wales | |||
| Any | 91 478 | 511.5 (282.9–937.3) | 5.5–14 936.8 |
| 24/7 | 91 473 | 569.7 (316.8–1033.4) | 8.3–14 936.8 |
| Restricted | 91 468 | 1174.2 (625.8–2661.6) | 5.5–24 634.8 |