Comparison of Serum Enzyme Assays on Automatic Analysers
Author Information
Author(s): Lucia Sacchetti, Dionigio Cerasuolo, Marco Besozzi, Antonio D'Agostino, Carlo Franzini, Francesco Salvatore
Primary Institution: Dipartimento di Biochimica Biotecnologie Mediche, Universitiz di Napoli
Hypothesis
How do different automatic analysers compare in measuring serum enzyme activities?
Conclusion
The study found that the methods for measuring serum enzyme activities are well correlated across different analysers, with acceptable imprecision for most analytes.
Supporting Evidence
- The correlation coefficients between the methods ranged from 0.991 to 0.999.
- Total imprecision was good for all analytes except ALT.
- The RA-2X analyser showed more variable results compared to others.
Takeaway
This study looked at how well different machines can measure the same blood enzymes, and they found that they mostly agree with each other.
Methodology
The study compared serum enzyme activities using four different analysers and assessed their performance through quality control and statistical analysis.
Potential Biases
Different assay methods used on the RA-2X analyser may introduce bias.
Limitations
The study noted higher variability in ALT measurements and some differences in performance among the analysers.
Participant Demographics
Samples were obtained from patients, with 20% at or below the lowest medical decision concentration and 40% in the normal range.
Statistical Information
Statistical Significance
p<0.05
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