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Influence of outlying values and variations between sampling days on reference ranges for clinical chemistry in budgerigars ( Melopsittacus undulatus )
Author(s) -
Scope A.,
Schwendenwein I.,
Frommlet F.
Publication year - 2005
Publication title -
veterinary record
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.261
H-Index - 99
eISSN - 2042-7670
pISSN - 0042-4900
DOI - 10.1136/vr.156.10.310
Subject(s) - melopsittacus , reference values , reference range , population , statistics , chemistry , mathematics , biology , medicine , zoology , environmental health
Reference ranges for clinical chemistry variables were established for 99 budgerigars sampled monthly for 12 months. The data from the repeated measurements were compiled to obtain the most reliable population‐based reference range defined to be relevant for the population of budgerigars over the whole year. Outlying values were excluded by reference to the population‐based reference range and to previously determined values from the same individual, following the guidelines of the International Federation of Clinical Chemistry. The exclusion of outliers significantly reduced the calculated reference ranges.