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Please use this identifier to cite or link to this item: http://hdl.handle.net/10625/40529

Title: Modified case-control study of cryptosporidiosis (using non-Cryptosporidium-infected enteric cases as controls) in a community setting
Authors: Charron, Dominique F.
Pintar, K.D.M.
Pollari, F.
Waltner-Toews, David
McEwen, S.A.
Fazil, A.
Nesbitt, A.
Keywords: CRYPTOSPORIDIUM
CASE CONTROL
EXPOSURE FACTORS
SURVEILLANCE
INFECTIOUS DISEASES
ENTERIC DISEASES
Issue Date: Dec-2009
Publisher: Cambridge University Press, Cambridge, GB
Abstract: Data from the first sentinel site (Waterloo Region, Ontario) of the Canadian Integrated Enteric Disease Surveillance System (C-EnterNet) were used in a secondary-based case-control study of laboratory-confirmed Cryptosporidium infections to study the role of various exposure factors. The incidence of cryptosporidiosis in Waterloo Region was almost double both the provincial and national rates. Persons ill with one of nine other enteric infections (amoebiasis, campylobacteriosis, cyclosporiasis, giardiasis, listeriosis, salmonellosis, shigellosis, verotoxigenic E. coli infections, yersiniosis) captured by the surveillance system were used as the control group. Of 1204 cases of enteric illness in the sentinel area between April 2005 and December 2007, 36 cases and 803 controls were selected after excluding outbreak and international travel-related cases. Univariable analyses (Pearson x2 and Fisher’s exact tests) and multivariable logistic regression were performed. Results of the multivariable analysis found that cryptosporidiosis was associated with swimming in a lake or river (OR 2.9, 95% CI 1.2–7.4), drinking municipal water (a potential surrogate for urban respondents vs. rural) (OR 2.4, 95% CI 1.04–5.7), and having a family member with a diarrhoeal illness (OR 2.9, 95% CI 1.3–6.4).
URI: http://hdl.handle.net/10625/40529
Document Delivery: To enquire about document delivery, contact the IDRC Library : library@idrc.ca or 613-696-2578 / Pour plus de renseignements sur la livraison de documents, communiquer avec la bibliothèque du CRDI : bibliothèque@crdi.ca ou 613-696-2578
Appears in Collections:IDRC Research Results / Résultats de recherches du CRDI
2000-2009 / Années 2000-2009

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