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Table 3 Factor loadings for the one-factor solution of the Greek version of the NDI

From: Translation of the Neck Disability Index and validation of the Greek version in a sample of neck pain patients

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