2.5. Statistical analysis
Prevalence data were analyzed by analysis of variance
(ANOVA) using SigmaStat software (version 3.0; SPSS Inc.,
Chicago, IL) with a significant difference defined at Pr0.05.
For evaluating PFGE band patterns, binary codes were used
to generate a dendrogram of genotypic relatedness by Exeter
NTSYSpc software (version 2.2, Applied Biostatistics, Port
Jefferson, NY) using the unweighted pair-group clustering
method with arithmetic averages.
2.5. Statistical analysisPrevalence data were analyzed by analysis of variance(ANOVA) using SigmaStat software (version 3.0; SPSS Inc.,Chicago, IL) with a significant difference defined at Pr0.05.For evaluating PFGE band patterns, binary codes were usedto generate a dendrogram of genotypic relatedness by ExeterNTSYSpc software (version 2.2, Applied Biostatistics, PortJefferson, NY) using the unweighted pair-group clusteringmethod with arithmetic averages.
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