Table 1.

VAS-IBS questionnaire.

Items	Score range
Gastrointestinal symptoms
Abdominal pain	0–100
Diarrhoea	0–100
Constipation	0–100
Bloating and flatulence	0–100
Vomiting and nausea	0–100
Mental health
Perception of mental well-being	0–100
Quality of life
GI symptom influencing daily life	0–100
Total score	0–700

0 represents very severe problems and 100 represents absence of problems. VAS-IBS: Visual Analogue Scale for Irritable Bowel Syndrome, GI: gastrointestinal.