Table 3

Psychometric properties of the 10-item Back Pain Attitudes Questionnaire

ComponentItemsEigenvalueExplained variance (%)α (95% CI)Inter-item correlationn
1. Psychological influences on recovery30, 311.67316.70.78 (0.74 to 0.82)0.641594
2. Prognosis of back pain32, 331.48914.90.64 (0.57 to 0.69)0.473595
3. Relationship between back pain and injury13, 141.48714.90.60 (0.54 to 0.66)0.444597
4. Activity participation during back pain25, 271.42014.20.58 (0.50 to 0.64)0.423593
5. Vulnerability of the back6, 111.37213.70.50 (0.42 to 0.58)0.350588
Total score74.40.61 (0.56 to 0.66)0.138576