Table 1.
Baseline characteristics of the two groups
| Control group n = 130 |
Cognitive impairment group n = 58 |
||
|---|---|---|---|
| Age | 84.2 (SD 6.1) | 84.9 (SD 5.6) | p = 0.46 |
| Sex | |||
| Male | 36 (27.7%) | 21 (36.2%) | p = 0.24 |
| Female | 94 (72.3%) | 37 (63.8%) | |
| Side | |||
| Right | 65 (50.0%) | 28 (48.3%) | p = 0.83 |
| Left | 65 (50.0%) | 30 (51.7%) | |
| Approach | |||
| Direct lateral | 74 (56.9%) | 32 (55.2%) | p = 0.82 |
| Posterolateral | 56 (43.1%) | 26 (44.8%) | |
| ASA | |||
| 1–2 | 65 (50.0%) | 24 (41.4%) | p = 0.27 |
| 3–4 | 65 (50.0%) | 34 (58.6%) | |
| Preop HHS | 83.8 (SD 11.4) | 77.2 (SD 13.5) | p = 0.01 |
| Preop EQ-5D | 0.84 (SD 0.23) | 0.62 (SD 33.5) | p = 0.001 |
| Length of hospital stay (days) | 13.3 (SD 8.7) | 12.2 (SD 11.2) | p = 0.49 |