Rapid Communication
Copyright ©2008 The WJG Press and Baishideng.
World J Gastroenterol. Nov 14, 2008; 14(42): 6506-6512
Published online Nov 14, 2008. doi: 10.3748/wjg.14.6506
Table 2 Definitions of ranks in visual analogue scale (characteristics of symptoms)
GradeFrequencyDurationIntensity
10PermanentPermanent
9Several times dailyAlmost whole day
8DailyMore than 6 h
7Almost dailyMore than 2 h
6Several times weeklyAbout 1 hGrading by patients on a scale from 0 to 10
5Up to 3 times weekly10-30 min
4Once weekly5-10 min
3Several times in 1 mo1-5 min
2Up to 3 times in 1 moLess than 1 min
1Once per monthA few seconds
0Never or very seldomNever