Table 1.
Preoperative characteristics of 30 203 patients with linked records from patient reported outcome measures, National Joint Registry for England and Wales, and hospital episode statistics after multiple imputation. Values are numbers (percentages) unless stated otherwise
| Characteristics | Prosthesis type | Data source | ||
| Cemented | Cementless | Hybrid | ||
| No of patients | 11 955 | 14 697 | 3551 | National joint registry |
| Mean (SD) age (years) | 72.4 (6.7) | 67.8 (7.2) | 70.4 (7.2) | |
| Women | 7760 (64.9) | 8149 (55.4) | 2201 (62.0) | National joint registry |
| Most deprived fifth* | 2309 (19.3) | 2856 (19.4) | 874 (24.6) | Hospital episode statistics |
| ≥2 comorbidities† | 2309 (25.0) | 3197 (21.8) | 866 (24.4) | Patient reported outcome measures |
| ASA grade ≥3 | 2102 (17.6) | 1815 (12.3) | 558 (15.7) | National joint registry |
| Mean (SD) body mass index | 28.7 (5.37) | 29.2 (5.42) | 28.8 (5.56) | National joint registry |
| Hip replacement at independent sector treatment centre | 1099 (9.2) | 1566 (10.7) | 173 (4.9) | Hospital episode statistics |
| Hip replacement by consultant | 9873 (82.6) | 12 649 (86.1) | 2871 (80.9) | National joint registry |
| Mean (SD) preoperative Oxford hip score | 17.7 (8.12) | 18.3 (8.24) | 18.1 (8.16) | Patient reported outcome measures |
| Mean (SD) EQ-5D-3L index‡ | 0.34 (0.32) | 0.36 (0.32) | 0.34 (0.32) | Patient reported outcome measures |
ASA=American Society of Anesthesiologists.
*Multiple index of deprivation.
†Excludes osteoarthritis.
‡0 represents death and 1 perfect health.