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Table 4 Associations between overactive bladder syndrome (OAB) and three different functional disorders in participants who could be classified with or without OAB (716 Giardia exposed and 833 controls) by stratification of comorbid conditions six years after an outbreak of Giardia in Bergen, Norway 2004

From: The relationship between irritable bowel syndrome, functional dyspepsia, chronic fatigue and overactive bladder syndrome: a controlled study 6 years after acute gastrointestinal infection

Comorbidities Giardia exposed Controls
  N n % OR 95 % CI N n % OR 95 % CI
No comorbiditya) 307 38 12.4 1.00 reference 617 67 10.9 1.00 reference
Irritable bowel syndrome           
  All IBS 284 60 21.1 1.90 (1.22, 2.95) 98 24 24.5 2.66 (1.57, 4.50)
  Without FD 166 27 16.3 1.38 (0.81, 2.35) 67 17 25.4 2.79 (1.52, 5.11)
  Without CF 145 23 15.9 1.34 (0.76, 2.34) 68 14 20.6 2.13 (1.12, 4.04)
  IBS alone 93 11 11.8 0.95 (0.46, 1.94) 52 12 23.1 2.46 (1.23, 4.93)
Chronic Fatigue           
  All CF 221 66 29.9 3.01 (1.93, 4.70) 96 26 27.1 3.05 (1.82, 5.11)
  Without FD 138 37 26.8 2.59 (1.56, 4.31) 67 17 25.4 2.79 (1.52, 5.11)
  Without IBS 84 30 35.7 3.93 (2.24, 6.89) 64 15 23.4 2.51 (1.33, 4.73)
  CF alone 65 22 33.8 3.62 (1.96, 6.71) 52 12 23.1 2.46 (1.23, 4.93)
Functional dyspepsia           
  All FD 145 39 26.9 2.61 (1.58, 4.29) 53 10 18.9 1.91 (0.92, 3.98)
  Without IBS 29 7 24.1 2.25 (0.90, 5.63) 23 3 13.0 1.23 (0.36, 4.25)
  Without CF 64 12 18.8 1.63 (0.80, 3.34) 30 2 6.7 0.59 (0.14, 2.52)
  FD alone 14 1 7.1 0.55 (0.69, 4.28) 16 0 0.0 n.a. n.a.
  1. Abbreviations: OAB overactive bladder syndrome; OR odds ratio; CI confidence interval; IBS irritable bowel syndrome; CF chronic fatigue; FD functional dyspepsia; n.a. not applicable
  2. a) Respondents classified with neither IBS, CF nor FD