Table 1. Counts of people with mechanical valves currently prescribed a DOAC by demographic characteristics between October 2021 and December 2021.
| Characteristic | Count of individuals coded as having a mechanical valve prescribed a DOAC (column % within category) | Population coded as having a mechanical valve (column % within category) | |
|---|---|---|---|
| Total | 664 (100.0) | 13,982 (100.0) | |
| Sex | Male | 416 (62.7) | 8,990 (64.3) |
| Female | 248 (37.3) | 4,992 (35.7) | |
| Ethnicity | White | 444 (66.9) | 8,742 (62.5) |
| Non-white | 31 (4.7) | 1,277 (9.1) | |
| Unknown | 189 (28.5) | 3,963 (28.3) | |
| Age Band | 16-49 | 26 (3.9) | 2,144 (15.3) |
| 50-59 | 25 (3.8) | 2,471 (17.7) | |
| 60-69 | 69 (10.4) | 3,160 (22.6) | |
| 70-79 | 218 (32.8) | 3,686 (26.4) | |
| 80+ | 326 (49.1) | 2,521 (18.0) | |
| IMD | Most deprived or Missing | 85 (12.8) | 2,681 (19.2) |
| 2 | 105 (15.8) | 2,692 (19.3) | |
| 3 | 144 (21.7) | 2,983 (21.3) | |
| 4 | 154 (23.2) | 2,865 (20.5) | |
| Least deprived | 176 (26.5) | 2,761 (19.7) | |
| Mechanical valve code | Mechanical prosthetic aortic valve replacement (174929002) | 455 (68.5) | 9,797 (70.1) |
| Mechanical prosthetic mitral valve replacement (431339008) | 159 (23.9) | 3,372 (24.1) | |
| Other | 50 (7.5) | 813 (5.8) | |
| Record of previous atrial fibrillation | Yes | 569 (85.7) | 4,918 (35.2) |
| No | 95 (14.3) | 9,064 (64.8) | |
| EHR Software Vendor | TPP | 183 (27.6) | 6,381 (45.6) |
| EMIS | 481 (72.4) | 7,601 (54.4) | |
| Prescription indicative of Self-monitoring INR | Yes | - | 384 (2.7%) |
| No | - | 13,598 (97.3%) | |
| SNOMED code indicative of self-monitoring INR | Yes | - | 127 (0.9%) |
| No | - | 13,855 (99.1%) | |