Stopped: Recruitment was so slow, that it made the study impossible. Organizational changes made it impossible for recruiting centers to continue recruitment
The main purpose of this study is to determine the measurement characteristics of WHODAS II (World Health Organization Disability Assessment Schedule), as well as to analyze its correlation with symptomatic lumbar disc herniation (Visual Analog Scale, VAS), disability (Spanish version of the Roland Morris Questionnaire, RMQ), fear avoidance beliefs and attitudes (Spanish version of the FAB Questionnaire, FABQ) and quality of life (SF-12). Measurements will be taken at baseline and 6 days later (day 7).
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Measurement characteristics of WHODAS-II
Timeframe: At baseline and at 7 days