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. 1993 Feb;12(2):81-6.
doi: 10.1007/BF01967579.

Incidence of hospital-acquired infection and length of hospital stay

B H Tess  1 , H M Glenister, L C Rodrigues, M B Wagner
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Incidence of hospital-acquired infection and length of hospital stay

B H Tess et al. Eur J Clin Microbiol Infect Dis. 1993 Feb.

Abstract

Two different measures of hospital-acquired infection (HAI), risk per discharge and incidence rate, were used to analyse the incidence of 225 primary HAIs detected in 3,090 patients in an 11-month survey. Longer hospital stay was associated with a greater risk of developing HAI, but the strength of the association was different for the two measures used. Day-specific incidence rates were found to vary, with a peak between the 14th and 19th days of hospitalisation. Similar patterns were observed when the data were stratified by age, sex and operation. Methods for calculating HAI should control for the length of hospital stay. Further studies are required to clarify the mechanisms that affect the temporal pattern of incidence of HAI observed with length of hospitalisation.

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References

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