Table I.
Summary statistics, before multiple imputations of the missing data, of baseline and procedural characteristics in the UK TAVI dataset
| Variable | Summary (% of n = 6676) | Missing (% of n = 6676) |
|---|---|---|
| Age, mean [range] | 81.3 [29–101] | 0 (0%) |
| Women, n (%) | 3085 (46.2%) | 22 (0.3%) |
| Weight (kg), mean [range] | 74.0 [32.0–190.0] | 131 (2.0%) |
| Height (m), mean [range] | 1.6 [1.1–2.4] | 159 (2.4%) |
| NYHA | 42 (0.6%) | |
| Class I, n (%) | 185 (2.8%) | |
| Class II, n (%) | 1116 (16.7%) | |
| Class III, n (%) | 4186 (62.7%) | |
| Class IV, n (%) | 1147 (17.2%) | |
| Creatinine, μmol/L, mean [range] | 114.3 [29.0–1044.0] | 73 (1.1%) |
| Creatinine greater than 200 μmol/L, n (%) | 379 (5.7%) | 73 (1.1%) |
| LVEF | 59 (0.88%) | |
| ≥50%, n (%) | 4074 (61.0%) | |
| 30–49%, n (%) | 1929 (28.9%) | |
| <30%, n (%) | 614 (9.2%) | |
| Extracardiac arteriopathy, n (%) | 1572 (23.5%) | 88 (1.3%) |
| Diabetes | 35 (0.52%) | |
| Dietary control, n (%) | 290 (4.3%) | |
| Oral medicine, n (%) | 884 (13.2%) | |
| Insulin, n (%) | 363 (5.4%) | |
| Dialysis, n (%) | 127 (1.9%) | 66 (0.99%) |
| MI | 33 (0.49%) | |
| Within 90 days of TAVI, n (%) | 153 (2.3%) | |
| Within 30 days of TAVI, n (%) | 65 (0.97%) | |
| Within 24 hours of TAVI, n (%) | 6 (0.09%) | |
| Procedure urgency | 7 (0.10%) | |
| Elective, n (%) | 5853 (87.7%) | |
| Urgent, n (%) | 772 (11.6%) | |
| Emergency, n (%) | 35 (0.52%) | |
| Salvage, n (%) | 9 (0.13%) | |
| Valve type | 31 (0.46%) | |
| Edwards SAPIEN Valve, n (%) | 3684 (55.2%) | |
| Medtronic CoreValve, n (%) | 2735 (41.0%) | |
| Access route | 13 (0.19%) | |
| TF access, n (%) | 4965 (74.4%) | |
| Transapical access, n (%) | 1064 (15.9%) | |
| Chronic lung disease, n (%) | 1879 (28.1%) | 94 (1.4%) |
| Cerebrovascular disease, n (%) | 1139 (17.1%) | 35 (0.52%) |
| Previous cardiac surgery, n (%) | 2087 (31.3%) | 35 (0.52%) |
| Critical preoperative state, n (%) | 110 (1.6%) | 81 (1.2%) |
| PA systolic >60 mmHg | 785 (11.8) | 1860 (27.9%) |
| LMS >50% or Triple vessel disease, n (%) | 887 (13.3%) | 74 (1.1%) |
LMS, Left main stem disease; MI, myocardial infarction; NYHA, New York Heart Association Functional Classification; PA, pulmonary artery; TF, transfemoral access route.