Skip to main content
. 2023 Jun 14;29(22):3400–3421. doi: 10.3748/wjg.v29.i22.3400

Table 1.

Association of small intestinal bacterial overgrowth with various diseases

Disease
Prevalence of SIBO
OR
Functional digestive diseases
Functional dyspepsia 17.2%-53.4% 4.3
Irritable bowel syndrome 31.0%-36.7% 3.7
Functional abdominal bloating/distention 43%-68%
Functional constipation 78%
Functional diarrhea 69%
Organic (non-functional) digestive diseases
Short bowel syndrome 50%
Chronic intestinal pseudo-obstruction 23.7%-52.6%
Lactase deficiency 27.6% 5.3
Lactose malabsorption in elderly persons 90% 36
Symptomatic uncomplicated diverticular disease 58.9% 8.7
Celiac disease 18.3% 5.1
Environmental enteric dysfunction 85.3%
Crohn’s disease 25.4% 10.9
Ulcerative colitis 14.3% 8.0
Liver diseases
Cirrhosis 40.8% 6.8
Hepatocellular carcinoma 71.8% 81.5
Metabolic associated fatty liver disease 35.0% 3.8
Primary biliary cholangitis 32.8% 18.9
Abdominal surgery
Bariatric surgery 37.0%-73.4%
Gastrectomy 61.6%-77.6% 16.3
Colectomy 62%-74% 3.47
Cholecystectomy 24.6%-46.8% 4.5-5.7
Other digestive diseases
Erosive esophagitis 65% 4.0
Helicobacter pylori infection 60.4% 3.45
Gastroparesis 60%
Chronic pancreatitis 38.6% 5.58
Acute pancreatitis 12.0%-17.8%
Cystic fibroris 31.6%-40.0%
Gallstone disease 14.8%-40.5% 2.2-26.9
Encopresis 42% 2.4
Endocrine and metabolic diseases
Diabetes mellitus 29% 4.18
Hypothyroidism 54% 22.3
Acromegaly 43.9% 22.7
Hyperlipidemia 78.9%
Nervous diseases
Multiple sclerosis 38.1% 4.5
Restless legs syndrome 69% 19.8
Azheimer’s disease 49% 3.35
Autism 31.0% 4.35
Spinal cord injuries 37.5%-38.5%
Parkinson’s disease 46% 5.22
Rheumatic diseases
Systemic sclerosis 34% 12.51
Behçet’s disease 36%
Spondylarthropathy 63% 32.9
Fibromyalgia 100%
Other diseases
Allergic asthma 67%
Non-allergic asthma 43%
Heart failure 41.7%-45.0% 7.14
Pancreatic cancer 63.3% 11.2
Cholangiocarcinoma 46.7% 5.7
Obstructive sleep apnea 30.8%
Post-COVID-19 irritable bowel syndrome 93.3% 9.3
Deep vein thrombosis 69.8% 3.5
Rosacea 10%-46% 16.2

SIBO: Small intestinal bacterial overgrowth; OR: Odds ratio; COVID-19: Coronavirus disease 2019.