Table 3.
Correlation coefficient analysis of PDQ-J and each NRS scores.
| PDQ-J | Preoperative NRS BP | Preoperative NRS LP | Preoperative NRS LN | |
|---|---|---|---|---|
| PDQ-J | 1.000 | 0.376*** | 0.285** | 0.496*** |
| Preoperative NRS BP | 0.377*** | 1.000 | 0.420*** | 0.490*** |
| Preoperative NRS LP | 0.285** | 0.420*** | 1.000 | 0.590*** |
| Preoperative NRS LN | 0.496*** | 0.490*** | 0.590*** | 1.000 |
| PDQ-J | Postoperative NRS BP | Postoperative NRS LP | Postoperative NRS LN | |
|---|---|---|---|---|
| PDQ-J | 1.000 | 0.360*** | 0.375*** | 0.360*** |
| Postoperative NRS BP | 0.360*** | 1.000 | 0.739*** | 0.594*** |
| Postoperative NRS LP | 0.375*** | 0.739*** | 1.000 | 0.690*** |
| Postoperative NRS LN | 0.360*** | 0.594*** | 0.690*** | 1.000 |
| PDQ-J | ΔNRS BP | ΔNRS LP | ΔNRS LN | |
|---|---|---|---|---|
| PDQ-J | 1.000 | − 0.025 | − 0.164 | 0.093 |
| ΔNRS BP | − 0.025 | 1.000 | 0.533*** | 0.492*** |
| ΔNRS LP | − 0.164 | 0.533*** | 1.000 | 0.587*** |
| ΔNRS LN | 0.093 | 0.492*** | 0.587*** | 1.000 |
NRS, Numeric Rating Scale; NRS-BP, Numeric Rating Scale for low back pain; NRS-LP, Numeric Rating Scale for leg pain; NRS-LN, Numeric Rating Scale for leg numbness.
*p < 0.01, ***p < 0.001 indicates significant differences between groups.