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Factor loadings for the one-factor solution of the Greek version of the NDI
| Item | Factor |
| Pain intensity | 0.301 |
| Personal care | 0.514 |
| Lifting | 0.745 |
| Reading | 0.814 |
| Headaches | 0.371 |
| Concentration | 0.741 |
| Work | 0.720 |
| Driving | 0.780 |
| Sleeping | 0.629 |
| Recreation | 0.834 |
