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Revision as of 15:21, 27 October 2017

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief:

Overview

Numerous studies have reported that the prevalence of IBS varies by country and by age range examined.

Epidemiology and Demographics

The figure above shows the percentage of the population reporting symptoms of IBS in studies from various geographic regions.

Developed Countries

The following table contains a list of studies performed in different countries that measured the prevalence of IBS and IBS-like symptoms:

Percentage of Population Reporting Symptoms of IBS in Various Studies from Various Geographic Areas
Country Prevalence Author/Year Notes
Canada 6%[1] Boivin, 2001
Japan 10%[2] Quigley, 2006 Study measured prevalence of GI abdominal pain/cramping
United Kingdom 8.2%[3]

10.5%[4]

Ehlin, 2003

Wilson, 2004

Prevalence increased substantially 1970-2004
United States 14.1%[5] Hungin, 2005 Most undiagnosed
United States 15%[1] Boivin,2001 Estimate

Returning Travelers: A study of United States residents returning from international travel found a high rate of IBS and persistent diarrhea which developed during travel and persisted upon return. The study examined 83 subjects in Utah, most of whom were returning missionaries. Of the 68 who completed the gastrointestinal questionnaire, 27 reported persistent diarrhea that developed while traveling, and 10 reported persistent IBS that developed while traveling.[6]

Developing Countries

Percentage of Population Reporting Symptoms of IBS in Various Studies from Various Geographic Areas
Country Prevalence Author/Year Notes
Brazil 43%[2] Quigley, 2006 Study measured prevalence of GI abdominal pain/cramping
Mexico City 35%[7] Schmulson, 2006 n=324. Also measured functional diarrhea and functional vomiting. High rates attributed to "stress of living in a populated city."
Mexico 46%[2] Quigley, 2006 Study measured prevalence of GI abdominal pain/cramping
Pakistan 14%[8] Jafri, 2007 Much more common in 16-30 age range. Of IBS patients, 56% male, 44% female
Pakistan 34%[9] Jafri,2005 College students

Epidemiology and Demographics

  • IBS is an extremely common disorder in the population. [10][11][12][13]
  • In USA and Australia, 1 in every 10 people fulfill the Rome Ⅲ criteria  for IBS, although most of them tend to go undiagnosed.
  • In Asian countries, IBS is underdiagnosed as risk factors for infection and dietary patterns are undergoing change.[14]

Incidence

  • The incidence of IBS is approximately 200 per 100,000 individuals worldwide.[15]

Prevalence

  • The worldwide prevalence of IBS is approximately 11,200 per 100,000 individuals worldwide.[16][17][15]
  • The prevalence of IBS varies with geographical and demographic distribution. The prevalence of IBS in USA and Europe is 10,000-20,000 per 100,000 individuals.

Age

  • The incidence of IBS decreases with age; the median age at diagnosis is 20 years.
  • IBS commonly affects individuals younger than 45 years of age.

Race

  • There is no racial predilection to IBS.

Gender

  • Women are more commonly affected by IBS than men due to a combination of social and biological factors.[18][19]
  • The likelihood of diagnosis is 2-3 times more in women as compared to men. [20]
  • Health care seeking behavior for symptoms is 4-5 times higher in women as compared to men.[19][20]
  • It has been postulated that the fluctuation of sex hormones in women during the menstrual cycle causing exacerbation of symptoms. [21]
  • 33 in every 100 patients have a history of sexual abuse, with women mostly as victims. [22]
  • Women have a lower threshold for pain and are at greater risk for development of functional and chronic pain disorders such as IBS and fibromyalgia.[23]

Children

  • The prevalence of IBS in the pediatric population of different geographical settings is similar.
  • In the Western pediatric population, IBS is the commonest cause of functional RAP as it accounts for more than 50% of all cases.[24][25]
  • A greater prevalence of IBS has been found in girls worldwide.
  • In Asia, the ratio of girls affected as compared to boys is higher.[26][27]

Region

  • The majority of IBS cases are reported in USA and Australia.
  • The prevalence of IBS in the pediatric population of different geographical settings is similar.

Developed Countries

  • In USA and Australia, 1 in every 10 people fulfill the Rome Ⅲ criteria  for IBS, although most of them tend to go undiagnosed.

Developing Countries

  • In Asian countries, IBS is underdiagnosed as risk factors for infection and dietary patterns are undergoing change.[14]
Percentage of Population Reporting Symptoms of IBS in Various Studies from Various Geographic Areas
Country Prevalence Author/Year Notes
Brazil 43%[2] Quigley, 2006 Prevalence of abdominal pain
Mexico City 35%[7] Schmulson, 2006 Prevalence of diarrhea and vomitting
Mexico 46%[2] Quigley, 2006 Prevalence of abdominal pain
Pakistan 14%[8] Jafri, 2007 Much more common in 16-30 age range. Of IBS patients, 56% male, 44% female
Pakistan 34%[9] Jafri,2005 College students

References

  1. ↑ 1.0 1.1 Boivin M. (2001 Oct;15). "Socioeconomic impact of irritable bowel syndrome in". Canada. Can J Gastroenterol. Suppl B: :8B-11B. PMID 11694908. Check date values in: |year= (help)
  2. ↑ 2.0 2.1 2.2 2.3 2.4 Quigley EM, Locke GR, Mueller-Lissner S, Paulo LG, Tytgat GN, Helfrich I, Schaefer E. Prevalence and management of abdominal cramping and pain: a multinational survey. (2006 Jul). "Aliment Pharmacol Ther". 24 (2): 411–9. PMID 16842469. Check date values in: |year= (help)
  3. ↑ Ehlin AG, Montgomery SM, Ekbom A, Pounder RE, Wakefield AJ. (2003 Aug). "Prevalence of gastrointestinal diseases in two British national birth cohorts". Gut. 52 (8): 1117-21. PMID 12865268. Check date values in: |year= (help)
  4. ↑ Wilson S, Roberts L, Roalfe A, Bridge P, Singh S. (2004). "Prevalence of irritable bowel syndrome: a community survey". Br J Gen Pract. 54 (504): 495-502. PMID 15239910.
  5. ↑ Hungin AP, Chang L, Locke GR, Dennis EH, Barghout V (2005). "Irritable bowel syndrome in the United States: prevalence, symptom patterns and impact". Aliment. Pharmacol. Ther. 21 (11): 1365–75. doi:10.1111/j.1365-2036.2005.02463.x. PMID 15932367.
  6. ↑ Tuteja AK, Talley NJ, Gelman SS, Adler SC, Thompson C, Tolman K, Hale DC. E. (2007). "Development of Functional Diarrhea, Constipation, Irritable Bowel Syndrome, and Dyspepsia During and After Traveling Outside the USA". Dig. Dis. Sci. PMID 17549631. line feed character in |author= at position 74 (help)
  7. ↑ 7.0 7.1 Schmulson M, Ortiz O, Santiago-Lomeli M, Gutierrez-Reyes G, Gutierrez-Ruiz MC, Robles-Diaz G, Morgan D. (2006). "Frequency of functional bowel disorders among healthy volunteers in Mexico City" (PDF). Dig Dis. 24: :342-7. PMID 16849861. Unknown parameter |oissue= ignored (help)
  8. ↑ 8.0 8.1 Jafri W, Yakoob J, Jafri N Islam M, Ali QM. (2007 Jun). "Irritable bowel syndrome and health seeking behaviour in different communities of Pakistan". J Pak Med Assoc. 57 (6): 285–7. PMID 17629228. Check date values in: |year= (help)
  9. ↑ 9.0 9.1 Jafri W, Yakoob J, Jafri N, Islam M, Ali QM. (2005 Oct-Dec). "Frequency of irritable bowel syndrome in college students". J Ayub Med Coll Abbottabad. 4 (17): 9–11. PMID 16599025. Check date values in: |year= (help)
  10. ↑ Thompson WG, Longstreth GF, Drossman DA, Heaton KW, Irvine EJ, Müller-Lissner SA (1999). "Functional bowel disorders and functional abdominal pain". Gut. 45 Suppl 2: II43–7. PMC 1766683. PMID 10457044.
  11. ↑ Talley NJ, Spiller R (2002). "Irritable bowel syndrome: a little understood organic bowel disease?". Lancet. 360 (9332): 555–64. doi:10.1016/S0140-6736(02)09712-X. PMID 12241674.
  12. ↑ Boyce PM, Talley NJ, Burke C, Koloski NA (2006). "Epidemiology of the functional gastrointestinal disorders diagnosed according to Rome II criteria: an Australian population-based study". Intern Med J. 36 (1): 28–36. doi:10.1111/j.1445-5994.2006.01006.x. PMID 16409310.
  13. ↑ Corazziari E (2004). "Definition and epidemiology of functional gastrointestinal disorders". Best Pract Res Clin Gastroenterol. 18 (4): 613–31. doi:10.1016/j.bpg.2004.04.012. PMID 15324703.
  14. ↑ 14.0 14.1 Gwee KA (2005). "Irritable bowel syndrome in developing countries--a disorder of civilization or colonization?". Neurogastroenterol. Motil. 17 (3): 317–24. doi:10.1111/j.1365-2982.2005.00627.x. PMID 15916618.
  15. ↑ 15.0 15.1 Choung RS, Locke GR (2011). "Epidemiology of IBS". Gastroenterol. Clin. North Am. 40 (1): 1–10. doi:10.1016/j.gtc.2010.12.006. PMID 21333897.
  16. ↑ Gwee KA, Ghoshal UC, Chen M (2017). "Irritable bowel syndrome in Asia: pathogenesis, natural history, epidemiology and management". J. Gastroenterol. Hepatol. doi:10.1111/jgh.13987. PMID 28901578.
  17. ↑ Quigley EM, Fried M, Gwee KA, Khalif I, Hungin AP, Lindberg G, Abbas Z, Fernandez LB, Bhatia SJ, Schmulson M, Olano C, LeMair A (2016). "World Gastroenterology Organisation Global Guidelines Irritable Bowel Syndrome: A Global Perspective Update September 2015". J. Clin. Gastroenterol. 50 (9): 704–13. doi:10.1097/MCG.0000000000000653. PMID 27623513.
  18. ↑ Voci SC, Cramer KM (2009). "Gender-related traits, quality of life, and psychological adjustment among women with irritable bowel syndrome". Qual Life Res. 18 (9): 1169–76. doi:10.1007/s11136-009-9532-9. PMID 19728159.
  19. ↑ 19.0 19.1 Drossman DA, Li Z, Andruzzi E, Temple RD, Talley NJ, Thompson WG, Whitehead WE, Janssens J, Funch-Jensen P, Corazziari E (1993). "U.S. householder survey of functional gastrointestinal disorders. Prevalence, sociodemography, and health impact". Dig. Dis. Sci. 38 (9): 1569–80. PMID 8359066.
  20. ↑ 20.0 20.1 Payne S (2004). "Sex, gender, and irritable bowel syndrome: making the connections". Gend Med. 1 (1): 18–28. PMID 16115580.
  21. ↑ Jackson NA, Houghton LA, Whorwell PJ, Currer B (1994). "Does the menstrual cycle affect anorectal physiology?". Dig. Dis. Sci. 39 (12): 2607–11. PMID 7995186.
  22. ↑ Walker EA, Katon WJ, Roy-Byrne PP, Jemelka RP, Russo J (1993). "Histories of sexual victimization in patients with irritable bowel syndrome or inflammatory bowel disease". Am J Psychiatry. 150 (10): 1502–6. doi:10.1176/ajp.150.10.1502. PMID 8379554.
  23. ↑ Goffaux P, Michaud K, Gaudreau J, Chalaye P, Rainville P, Marchand S (2011). "Sex differences in perceived pain are affected by an anxious brain". Pain. 152 (9): 2065–73. doi:10.1016/j.pain.2011.05.002. PMID 21665365.
  24. ↑ Hyams JS, Treem WR, Justinich CJ, Davis P, Shoup M, Burke G (1995). "Characterization of symptoms in children with recurrent abdominal pain: resemblance to irritable bowel syndrome". J. Pediatr. Gastroenterol. Nutr. 20 (2): 209–14. PMID 7714688.
  25. ↑ El-Matary W, Spray C, Sandhu B (2004). "Irritable bowel syndrome: the commonest cause of recurrent abdominal pain in children". Eur. J. Pediatr. 163 (10): 584–8. doi:10.1007/s00431-004-1503-0. PMID 15290263.
  26. ↑ Rajindrajith S, Devanarayana NM (2012). "Subtypes and Symptomatology of Irritable Bowel Syndrome in Children and Adolescents: A School-based Survey Using Rome III Criteria". J Neurogastroenterol Motil. 18 (3): 298–304. doi:10.5056/jnm.2012.18.3.298. PMC 3400818. PMID 22837878.
  27. ↑ Dong L, Dingguo L, Xiaoxing X, Hanming L (2005). "An epidemiologic study of irritable bowel syndrome in adolescents and children in China: a school-based study". Pediatrics. 116 (3): e393–6. doi:10.1542/peds.2004-2764. PMID 16140684.

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