Review Article

The Gut Microbiota and Irritable Bowel Syndrome: Friend or Foe?

Table 2

Summary of prevalence of SIBO in IBS patients by different diagnostic methods.

Diagnostic methodN. of IBS patientsN. of controlsPercentage of SIBO in IBS subjectsPercentage of SIBO in controlsReference

LHBT764044.7%40.0%Park et al. [115]
LHBT435665%7%Scarpellini et al. [116]
LHBT12743%Carrara et al. [5]
LHBT25834.5%Mann and Limoges-Gonzales [117]
LHBT9865%Nucera et al. Lombardolll [118]
GHBT593723.7%2.7%Sachdeva et al. [119]
GHBT9836%Reddymasu et al. [120]
GHBT2005024.5%6%Lombardo et al.
GHBT192131%Ford et al. [121]
GHBT1307016.1%4.2%Parodi et al. [122]
GHBT22510011.1%1%Rana et al. [123]
GHBT20446%Majewski et al. [124]
GHBT9645.8%Cuoco and Salvangnini [125]
GHBT6510231%4%Lupascu et al. [126]
GHBT129518.5%2%Ghoshal et al. [58]
Hydrogen1583432.9%17.9%Grover et al. [127]
Breath test and culture of small bowel aspirate162264%4%Posserud et al. [56]

Abbreviations used: SIBO: small intestinal bacterial overgrowth; IBS: irritable bowel syndrome; LHBT: lactulose hydrogen breath test; GHBT: glucose hydrogen breath test.