Prevalence, Spinal Alignment, and Mobility of Lumbar Spinal Stenosis with or without Chronic Low Back Pain: A Community-Dwelling Study

Table 1

Key questions from a self-administered, self-reported history questionnaire for the diagnosis of lumbar spinal stenosis.

Q1:	Numbness and/or pain is present in the thighs down to the calves and shins
Q2:	Numbness and/or pain increases in intensity after walking for a while, but relieved by taking a rest
Q3:	Standing for a while brings on numbness and/or pain in the thighs down to the calves and shins
Q4:	Numbness and/or pain is reduced by bending forward
Q5:	Numbness is present in both legs
Q6:	Numbness is present in the soles of both feet
Q7:	Numbness arises around the buttocks
Q8:	Numbness is present, but pain is absent
Q9:	A burning sensation arises around the buttocks
Q10:	Walking nearly causes urination

Each question is assigned one point. Lumbar spinal canal stenosis is diagnosed if (1) the score was 4 points from Q1 to Q4 or (2) the score was more than 1 point from Q1 to Q4 and more than 2 points from Q5 to Q10.