Use of the Chi-Square Test to Determine Significance of Cumulative Antibiogram Data. Use of the Chi-Square Test to Determine Significance of Cumulative Antibiogram Data.

Use of the Chi-Square Test to Determine Significance of Cumulative Antibiogram Data‪.‬

American Journal of Infectious Diseases 2005, Oct, 1, 4

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Descrizione dell’editore

Abstract: An important function of a hospital's Infectious Disease and Pharmacy programs is to review and compare the most recent antibiogram with that of the previous year to determine if significant changes in antibiotic susceptibility results are noted and to communicate this information and its consequences to the medical staff. However, there are currently no formal analytical (decision-making) models in use to determine if the rate of resistance to an antibiotic from one year to the next has significantly changed more or less than one would expect due to sampling error and test reliability. The purpose of this article, therefore, is to demonstrate the utility of using a well-established and simple nonparametric statistical technique (chi-square) for analyzing annual variations in cumulative antibiogram data and to determine whether such variations are significantly different from chance and to what to degree. The chi-square model outlined here is a simple, practical, quick, low burden and easy to understand and execute approach that greatly improves the analysis of antibiogram data and decisionmaking by practitioners. More work and research is needed to develop additional inferential statistical methods and models that can be applied to antibiogram data. Key words: Antibiogram, chi-square, decision-making, nonparametric, statistic

GENERE
Scienza e natura
PUBBLICATO
2005
1 ottobre
LINGUA
EN
Inglese
PAGINE
18
EDITORE
Science Publications
DIMENSIONE
187
KB

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