Table 8 Differences in mental status severity classifications and overall score between preoperative and postoperative phases.
Severity classification | Preoperative | Postoperative | ta | p-value | ||
|---|---|---|---|---|---|---|
N | % | N | % | |||
Minimal depression | 0 | 0.0% | 72 | 54.1% | 29.079 | < 0.001 |
Mild depression | 18 | 13.4% | 60 | 45.1% | ||
Moderate depression | 91 | 67.9% | 1 | 0.8% | ||
Moderately severe depression | 25 | 18.7% | 0 | 0.0% | ||
Severe depression | 0 | 0.0% | 0 | 0.0% | ||
Overall PHQ-9 score (mean ± SDb) | 12.00 ± 2.639 | 4.31 ± 1.890 | 37.650 | < 0.001 | ||
