Table 1.

Our original 12-item questionnaire

(Q1)	Can you cut your toenails by yourself?
(Q2)	Can you pick up something from the floor?
(Q3)	Do you feel abdominal distention?
(Q4)	Dou you suffer from heartburn?
(Q5)	How is your appetite?
(Q6)	How often do you take sleeping pills?
(Q7)	Dou you sleep well?
(Q8)	Do you snore?
(Q9)	How often do you take a purgative?
(Q10)	How often do you have constipation?
(Q11)	How often do you have fever of more than 38°C?
(Q12)	How often do you have gross hematuria?