Table 3. Cognitive Assessment Results.
| Variable | Overall Sample (N = 191) | Preoperative Cognitive Impairment | P Value | |
|---|---|---|---|---|
| Present (n = 55) | Absent (n = 136) | |||
| CAM positive, No. (%) | ||||
| POD 1 | 35 (18.3) | 18/55 (32.7) | 17 (12.5) | .001 |
| POD 2 | 31 (21.2) | 12/44 (27.3) | 19/102 (18.6) | .24 |
| POD 3 | 21 (19.3) | 10/35 (28.6) | 11/74 (14.9) | .09 |
| POD 1, 2, or 3 | 59 (30.9) | 27 (49.1) | 32 (23.5) | <.001 |
| T-MoCA score, mean (SD) | ||||
| Baseline | 18.2 (3.1) | 16.8 (3.8) | 18.8 (2.6) | <.001 |
| 30 d | 18.6 (2.8) | 17.3 (3.4) | 19.1 (2.4) | <.001 |
| 90 d | 18.8 (3.1) | 17.1 (3.5) | 19.3 (2.7) | <.001 |
Abbreviations: CAM, Confusion Assessment Method; POD, postoperative day; T-MoCA, telephone version of the Montreal Cognitive Assessment.