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Volume 12, Number 10—October 2006

Dispatch

ICD-9 Codes and Surveillance for Clostridium difficile–associated Disease

Erik Dubberke*Comments to Author , Kimberly Reske*, L. Clifford McDonald†, and Victoria Fraser*‡
Author affiliations: *Washington University in St. Louis–School of Medicine, Saint Louis, Missouri, USA; †Centers for Disease Control and Prevention, Atlanta, Georgia, USA; ‡Barnes-Jewish Hospital, Saint Louis, Missouri, USA

Main Article

Table 1

Demographic characteristics of study population by Clostridium difficile–toxin assay (CDTA) and ICD-9 status*

Characteristic Controls, n = 44,585 (%) CDTA+/ICD-9–, n = 156 (%) CDTA+/ICD-9+, n = 506 (%) CDTA–/ICD-9+, n = 239 (%)
Age (median y) 55 64 67 66
Length of hospitalization (median d) 4 13 12 6
Female 25,869 (58) 68 (44) 267 (53) 158 (66)
White 28,071 (63) 110 (71) 347 (69) 170 (71)
Time from admission to stool collection (median d) NA 6.0 3.0 NA
First positive stool collected within 48 h of discharge NA 68 (44) 72 (14) NA

*NA. not available.

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