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Volume 10, Number 7—July 2004
Research

Sporadic Cryptosporidiosis Case-Control Study with Genotyping

Paul R. Hunter*Comments to Author , Sara Hughes†, Sarah Woodhouse†, Qutub Syed†, Neville Q. Verlander‡, Rachel M. Chalmers§, Kenton L. Morgan¶, Gordon Nichols†, Nick Beeching#, and Keith Osborn**
Author affiliations: *University of East Anglia, Norwich United Kingdom; †Communicable Disease Surveillance Centre – North West, Chester, United Kingdom; ‡Communicable Disease Surveillance Centre, London, United Kingdom; §Singleton Hospital, Swansea, United Kingdom; ¶University of Liverpool, Liverpool, United Kingdom; #Liverpool School of Tropical Medicine, Liverpool, United Kingdom; and; **United Utilities, Warrington, United Kingdom

Main Article

Table 2

Final multivariable model, all dataa,b

Variables Adjusted OR 95% CI p value
Health authority



   A 1.000 0.004
   B 0.125 0.041–0.382
   C n.e. n.e.
   D 0.482 0.166–1.398
   E 1.610 0.247–10.49
   F 0.225 0.080–0.635
   G 0.326 0.068–1.552
   H 0.921 0.261–3.250
   I n.e. n.e.
   J 0.310 0.117–0.822
   K 316.600 0–∞
   L 0.175 0.012–2.566
   M 0.377 0.130–1.097
   N 1.203 0.289–4.999
   O 0.367 0.11–1.145
   P 0.562 0.134–2.354
   Q 198.400 0–∞
   R 0.449 0.146–1.383
   S 0.206 0.053–0.804
   T 0.366 0.078–1.720
   U
0.546
0.207–1.443

Age
0.994/y
0.982–1.006
0.314
Travel outside UK



Y 5.650 2.861–11.160 < 0.001
N
1.000


Contact with another person with diarrhea



   Y 4.614 2.449–8.691 < 0.001
   N
1.000


Touch any cattle



   Y 3.876 1.4196–10.04 0.003
   N
1.000


Usually wash before eating raw fruit and vegetables



   Always 1.000 0.108
   Usually 0.966 0.605–1.543
   Sometimes 0.746 0.436–1.274
   Never
2.478
0.965–6.362

Toileting contact with child <5 y



Y 1.851 1.079–3.175 0.025
N
1.000


Number of glasses of unboiled water drunk at home
1.135 per glass
1.019–1.265
0.019
Eat ice cream



   Y 0.472 0.299–0.746 0.001
   N
1.000


Eat raw vegetables



   Y 0.532 0.346–0.820 0.004
   N
1.000


Eat tomatoes



   Y 0.616 0.392–0.969 0.035
   N 1.000

aEstimated from 552 observations (261 case-patients and 291 controls).
bOR, odds ratio; CI, confidence intervals; n.e., not estimable.

Main Article

Page created: June 16, 2011
Page updated: June 16, 2011
Page reviewed: June 16, 2011
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