Table 5.
Change of cognitive functions, expressed as the difference between pre- and postoperative values
| Test | Low risk | Moderate to high risk | PMWU | PANOVA |
|---|---|---|---|---|
|
DemTect (points) |
-2 (−6–3) | 0 (−4–5) | 0.026* | 0.009* |
| RBMT (points) | 0 (−9–15) | 4 (− 16–20) | 0.443 | 0.993 |
| ZVT (min) | −11 (− 25–7) | − 7 (− 25–11) | 0.397 | 0.220 |
| TMT (min) | −15 (− 52–34) | − 11 (− 41–60) | 0.507 | 0.319 |
| Digit Span Forwards (points) | 0 (− 3–3) | 0 (− 2–2) | 0.573 | 0.448 |
| Digit Span Backwards (points) | 1 (−1–3) | 0 (− 2–3) | 0.162 | 0.102 |
| Digit Span Total (points) | 1 (− 1–6) | 0 (− 2–4) | 0.229 | 0.106 |
| FWIT (min) | −4 (− 52–64) | − 5 (− 21–29) | 0.744 | 0.769 |
| SKT Attention (points) | 2 (0–4) | 1 (0–3) | 0.080 | 0.011* |
| SKT Memory (points) | 0 (−1–4) | 0 (− 2–2) | 0.205 | 0.307 |
| SKT Total (points) | 2 (− 1–6) | 1 (− 1–4) | 0.611 | 0.008* |
Data are reported as median (range). PMWU is the significance level of the difference between the two groups obtained by the Mann-Whitney test. PANOVA are the significance levels of the interaction between the factors listed above and “gender” with the “group” as cofactor obtained by analysis of variance