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GI physiology
PWE-002 IBS in Nigeria; is there a decline in prevalence?
  1. C A Onyekwere1,
  2. A Asiyanbi2,
  3. J Obi2
  1. 1Internal Medicine, Lagos state University college of medicine, Lagos, Nigeria
  2. 2Internal Medicine, Lagos state University teaching hospital, Lagos, Nigeria

Abstract

Introduction Background: IBS is a common functional gastrointestinal disorder that presents in both primary healthcare as well as gastroenterology clinic. Reports of prevalence of IBS vary depending on diagnostic criteria as well as geographical setting. Data from Nigeria reveal prevalence of between 26% and 33%. Aim: we set out to determine the prevalence of IBS in lagos population which is representative of the Nigeria society.

Methods Consecutive patients with recurrent abdominal pain who presented to the general outpatient unit of the three big referral hospitals in lagos between 2010 and 2011 were evaluated for the presence of IBs using the Rome 111 criteria.

Results 350 subjects were evaluated during the study period of which 65 (36 females) met the Rome 111 criteria giving a prevalence of 18.6%. The IBS subtypes were IBS-C (33), IBS-D (18), and IBS-M (14). Occurrence of IBs was significantly associated with consumption of starchy food (rice, yam, potato, spaghetti, beans) and citrous foods. Majority of the IBs subjects (75%) were positive for small intestinal bacterial overgrowth using the hydrogen breath test.

Conclusion This study has shown a lower prevalence of IBS (18.6%) than the three previous reports from our setting (26%, 30%, 33%).

Competing interests None declared.

References 1. Olubuyide IO, Olawiyi F, Fasanmade AA. A study of irritable bowel syndrome diagnosed by Manning Criteria in an African population. Dig Dis Sci 1995;40:983–5.

2. Ladep NG, Obindo TJ, Audu MD, et al. Depression in patients with irritable bowel syndrome in Jos, Nigeria. World Gastroenterol 2006;12:7844–7.

3. Okeke EN, Ladep NG, Adah S, et al. Prevalence of irritable bowel syndrome: a community survey in an African population. Ann Afr Med 2009;8:177–80.

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