From: Prevalence of lactose intolerance in patients with diarrhea-predominant irritable bowel syndrome: data from a tertiary center in southern China
Symptoms, median (quartiles)
IBS-D patients
Healthy subjects
P value
Abdominal pain
1 (0–2)
0 (0–1)
0.153
Bloating
2 (1–2)
0.052
Borborygmus
2 (1–3)
2 (2–3)
0.348
Diarrhea
3 (2–4)
3 (2–3)
0.141
TSS
7 (6–9)
6 (5–7)
0.177