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Volume 11, Number 6—June 2005

Research

Fluoroquinolone-resistant Escherichia coli Carriage in Long-Term Care Facility

Joel N. Maslow*†Comments to Author , Betsy Lee*, and Ebbing Lautenbach†
Author affiliations: *Veterans Affairs Medical Center, Philadelphia, Pennsylvania, USA; †University of Pennsylvania, Philadelphia, Pennsylvania, USA

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Table 1

Comparison of cases and controls, fluoroquinolone-resistant Escherichia coli colonization study, long-term care facility*

Variable Controls (n = 24) (%) Cases (n = 25) (%) OR (95% CI) p value†
Prior hospitalization 18/24 (75.0) 13/25 (52.0) 0.36 (0.09, 1.41) 0.08
Duration of residence in facility (d)‡§ 209.5 (22–2,571) 411 (81–2,580) 0.13
Decubitus ulcer 6/24 (25.0) 2/25 (8.0) 0.26 (0.02, 1.73) 0.14
Low ambulatory status 15/24 (62.5) 10/25 (40.0) 0.40 (0.11, 1.46) 0.16
Fluoroquinolone use 6/24 (25.0) 18/25 (72.0) 7.71 (1.86, 33.60) 0.002
Metronidazole use 1/24 (4.2) 7/25 (28.0) 8.90 (0.96, 420.17) 0.05

*OR, odds ratio; 95% CI, 95% confidence interval.
†Fisher exact test (categorical variables); Wilcoxon-rank sum test (continuous variables).
‡Median (range).
§Days from admission into facility until study enrollment.

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