From the 2006 National Health Interview Survey Arthritis Supplement:
Please think about the past 30 days, keeping in mind all of your joint pain or aching and whether or not you have taken medication. During the past 30 days, how bad was your joint pain on average? Please answer on a scale of 0 - 10 where 0 is no pain or aching and 10 is pain or aching as bad as it can be.
[Response categories: 0 - 10]
[NUMERATOR AND DENOMINATOR:]
Have you EVER been told by a doctor or other health professional that you have some form of arthritis, rheumatoid arthritis, gout, lupus, or fibromyalgia?
[If yes:] The next questions refer to your joints. Please do NOT include the back or neck. During the past 30 days, have you had any symptoms of pain, aching, or stiffness?