Breath tests and irritable bowel syndrome

Table 1 Comparison of glucose and lactulose breath tests for diagnosis of small intestinal bacterial overgrowth in patients with irritable bowel syndrome

Year	Ref.	Substrate	% age of SIBO + ve	Number of patients
2005	Lupascu et al[21]	Glucose	31	65
2007	Majewski et al[35]	Glucose	46	204
2008	Rana et al[45]	Glucose	11.1	225
2009	Parodi et al[39]	Glucose	16	130
2010	Reddymasu et al[15]	Glucose	36	98
2011	Sachdeva et al[42]	Glucose	23.7	59
2012	Rana et al[44]	Glucose	6.2	175
2008	Grover et al[41]	Sucrose	32.9	158
2011	Yakoob et al[40]	Lactose	14	234
2003	Pimentel et al[22]	Lactulose	84	111
2005	Nucera et al[79]	Lactulose	65	98
2007	Madrid et al[24]	Lactulose	76	367
2008	Bratten et al[47]	Lactulose	67	264
2009	Scarpellini et al[43]	Lactulose	65	43
2009	Peralta et al[33]	Lactulose	56	97
2010	Park et al[31]	Lactulose	56.3	555
2012	Meyrat et al[32]	Lactulose	71	150
2013	Scarpellini et al[36]	Lactulose	66	50

SIBO: Small intestinal bacterial overgrowth.