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Volume 11, Number 5—May 2005

Dispatch

Emergency Survey Methods in Acute Cryptosporidiosis Outbreak

LeAnne M. Fox*Comments to Author , M. Cheryl Banez Ocfemia†, D. Charles Hunt†‡, Brian G. Blackburn*, Daniel Neises†, W. Kay Kent§, Michael J. Beach*, and Gianfranco Pezzino¶
Author affiliations: *Centers for Disease Control and Prevention, Atlanta, Georgia, USA; †Kansas Department of Health and Environment, Topeka, Kansas, USA; ‡University of Kansas Medical Center, Kansas City, Kansas, USA; §Lawrence-Douglas County Health Department, Lawrence, Kansas, USA; ¶Kansas Health Institute, Topeka, Kansas, USA

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Table

Utilization of CATI system for case-control study*

Characteristic Case-patients Controls
Interview period Sep 15–Sep 29 Sep 28–Oct 21
No. enrolled 151 302
No. calls made 1,357 10,101
No. refusals 56 330
Average interview length (min) 28 16
Interviewer hours 263 508

*CATI, computer-assisted telephone interview.

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