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Volume 11, Number 10—October 2005


Antibacterial Cleaning Products and Drug Resistance

Allison E. Aiello*Comments to Author , Bonnie Marshall†, Stuart B. Levy†, Phyllis Della-Latta‡, Susan X. Lin‡, and Elaine Larson‡
Author affiliations: *University of Michigan School of Public Health, Ann Arbor, Michigan, USA; †Tufts University School of Medicine, Boston, Massachusetts, USA; ‡Columbia University, New York, New York, USA

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Table 2

Mean values for baseline or year-end characteristics of study participants

Characteristic Nonantibacterial group* (N = 118)
Antibacterial group* (N = 120)
Mean SD Mean SD
Primary caregiver
Age (y) of primary caregiver (baseline) 34.6 10.0 33 8.1
No. of daily washes (reported)
Baseline 13.3 9.8 11.6 7.1
End of year 11.6 6.3 10.3 5.1
Length(s) of handwash (observed)
Baseline 15.5 9.4 16.4 9.7
End of year 18.7 8.3 18.5 8.3
Age (y) of all household members combined (baseline) 20.1 4.9 20.0 5.9
No. of children <5 y in home (baseline) 1.5 0.6 1.5 0.7
No. of persons in household (baseline) 5.0 1.5 5.0 1.8

*No significant differences were observed between the antibacterial and nonantibacterial product users in any of the characteristics measured (all p>0.05).

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