Have you experienced back pain (including disc problems) during the last 30 days?
Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.
The intention of this question is to identify people who have back pain that could be related either to osteoarthirits or other problems such as trauma and disc displacement in the spine. This question should be asked to everyone.
If no, go to Q6009.