Interdisciplinary Perspectives on Infectious Diseases / 2011 / Article / Tab 1

Research Article

A Community Outbreak of Cryptosporidiosis in Sydney Associated with a Public Swimming Facility: A Case-Control Study

Table 1

Unadjusted and adjusted matched odds ratios for risk factors associated with Cryptosporidium infection.

Cases (Total = 31)Controls (Total = 97)Matched odds ratio
ExposedPercentExposedPercentUnadjusted95% CIAdjusted*95% CI

Contact with people with diarrhoea134213135.61.9––31.4
Contact with people with vomiting929775.91.8–19.3
Attended childcare or preschool123927281.70.7–4.5
Drank mains water311009497Undefined
Drank bottled water1310100.20.0–2.0
Drank untreated water0000Undefined
Any swimming268456584.11.4–12.6
 Swam in pool at Facility A1548111115.83.5–70.919.43.7–100.8
 Swam in pool other than at Facility A72321221.10.4–3.0
 Swam in other water body
  (e.g., dam and ocean)
Animal contact103261630.30.1––0.7
Visited a farm0099Undefined
International travel0033Undefined
Domestic travel002324Undefined

*Adjusted for all other variables in the model; No other pools were associated with diagnosis of cryptosporidiosis disease; CI = confidence interval.

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