Table 2.
General characteristics, intraoperative indicators and cognitive functions of patients from non-POCD and POCD at baseline.
| Item (baseline) | Non-POCD (n = 160) | POCD (n = 21) | p-value |
|---|---|---|---|
| Age (years) | 76.8 ± 2.7 | 77.2 ± 3.1 | 0.531 |
| Weight (kg) | 63.4 ± 11.2 | 64 ± 12.4 | 0.820 |
| Education (years) | 8.3 ± 1.4 | 8.6 ± 2.6 | 0.357 |
| ASA classification (I/II/III) | 32/104/24 | 5/14/2 | 0.501 |
| Operation time (min) | 84.9 ± 18.8 | 79.8 ± 19.6 | 0.246 |
| Intraoperative blood loss (ml) | 296.4 ± 37.2 | 290.6 ± 43.8 | 0.512 |
| Intraoperative urine output (ml) | 376.3 ± 86.2 | 370.4 ± 84.5 | 0.768 |
| Intraoperative blood sugar (mmol/l) | 5.71 ± 0.58 | 5.78 ± 0.66 | 0.610 |
| MMSE scores | 28.0 ± 1.4 | 28.4 ± 1.8 | 0.236 |
| DST scores | 16.1 ± 1.4 | 16.4 ± 1.5 | 0.361 |
| CDT scores | 2.4 ± 0.5 | 2.7 ± 0.6 | 0.013 |
| SDMT scores | 31.0 ± 3.6 | 31.6 ± 3.9 | 0.478 |
| TMT-A scores | 40.1 ± 7.8 | 42.3 ± 8.6 | 0.231 |
POCD, postoperative cognitive dysfunction; MMSE, Mini-Mental State Examination; DST, Digit Span Test; CDT, Clock Drawing Test; SDMT, Symbol Digit Modalities Test; TMT-A, Trail Making Test A.