Roland Morris Disability Questionnaire is a widely used health status measure for low back pain. The RMDQ can be used in research or clinical practice. 36 translations and adaptations are available, including minor adaptations for Canadian and Australian English and etc.
I would suggest caution in using function as a surrogate for pain (if that is your intention). Individuals may adjust function due to pain, and /or may continue to function at high levels inspite of pain. The Human capacity for soldiering on inspirte of pain is under appreciated in today's anti pain management climate. Finally, be cautious regarding underreported pain precisely because indiviiduals want to avoid labels or be looked at as a potential pain med "user". This is a very sad and unfortunate facet of today's media hyped anti pain management climate, and is a terrible commentary for those of us who fought s hard to make pain a key vital sign of health.
Thank you, I appreciate your comments. No, that is not our intention at all. We use function as an indicator of how well our adolescents are managing their pain. Unfortunately, many of our chronic pain patients are fixated on a number from a scale that was validated to measure acute pain. The chronic pain patient needs a different scale. Our adolescent patients don't have the ability to soldier on at their age. Thanks, again.
I am doing my doctoral thesis with a similar topic and I have used the Chronic Pain Grade Questionaire. The questionnaire is simple and provides a lot of information.