Predictor | Number of studies | EQ-5D Index results | EQ VAS results | MCID | |||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Alterable |  | + | – | n.s. | + | – | n.s. | N.A. | + | – | N.A. |
 High BMI | 7 | 3 | 1 | 3 | 0 | 0 | 5 | 2 | 1 | 2 | 4 |
 Opioid-user | 1 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 1 |
 Level of empowering knowledge | 1 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 1 |
 Patient education | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 |
 Physiotherapy | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 |
Non-alterable | |||||||||||
 High Charnley class | 3 | 0 | 1 | 2 | 0 | 2 | 1 | 0 | 2 | 0 | 1 |
 High KL classification | 3 | 2 | 0 | 1 | 0 | 0 | 1 | 2 | 1 | 0 | 2 |
 High Ahlbäck classification | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
 Male gender | 4 | 0 | 2 | 2 | 1 | 2 | 1 | 0 | 1 | 1 | 2 |
 Oder age | 8 | 0 | 4 | 4 | 0 | 4 | 3 | 1 | 2 | 1 | 5 |
 High ASA score | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 |
 Anxiety/depression | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 |
 High education level | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 |
 No previous operations | 1 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 1 | 0 |