Table 3: Distribution of IBS subtypes in FD-IBS overlap.

IBS SubtypeNumber of patients ( )Percentage

IBS-C4038.5
IBS-D3230.8
IBS-M1615.4
IBS-U1615.4

IBS-C: constipation dominant IBS.
IBS-D: diarrhea dominant IBS.
IBS-M: mixed IBS.
IBS-U: unsubtyped IBS.