pubmed:abstractText |
The aim of the study was to investigate if there is a clinically relevant influence of daytime or season and if there are sex-dependant differences in some frequently determined clinical chemistry parameters. The study was performed with 99 1.5- to 2-year old healthy budgerigars of three races. A harmonic regression analysis was performed taking into account linear and cyclic trends over the year. Correlations were investigated by the calculation of Spearman correlation coefficients. Summarizing, it can be said that some circadian, seasonal, as well as sex- and race-dependant influences have been shown. However, although the differences are statistically significant, they were too small to have an impact on clinical decision making. As clinical chemistry results are in practice independent from the influence factors investigated, their meaning and use as a diagnostic tool is further substantiated.
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