Medical coding of antibiotic prescriptions
| CPRD Aurum | CPRD GOLD | CPRD GOLD England | |
| Number of prescription items | 101 360 | 112 931 | 37 551 |
| Number of prescriptions with unique date | 98 727 | 108 397 | 36 617 |
| Medical code recorded on same date | 72 989 (74.0) | 84 756 (78.2) | 28 471 (77.8) |
| No medical code recorded on same date | 25 738 (26.0) | 23 641 (21.8) | 8146 (22.2) |
| Respiratory infection | 21 350 (21.6) | 26 005 (24.0) | 9549 (26.1) |
| Genitourinary infection | 11 126 (11.3) | 8762 (8.1) | 3315 (9.1) |
| Skin infection | 6559 (6.6) | 6559 (6.1) | 2617 (7.1) |
| Other codes | 33 954 (34.4) | 43 430 (40.1) | 12 990 (35.5) |
Figures are frequencies (per cent of unique prescription dates).
CPRD, Clinical Practice Research Datalink.